DotNet >>"There was an error opening this document"

"There was an error opening this document"

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- 1
 - Net Framework >> Memory Managment/Objects lifecycle managmentHello .NET experts
 
 A group of develpers here are having some arguements about different ways to
 write program with minimal memory footprint.
 One method in buisness class creates an instance of another class and calls
 its method that does database related work. This buisness class methods is
 being called in a loop, so everytime it executes it creats 1 instance of
 db-related object.
 Another developer sugested making db-related object a class member, rather
 then local to a method, and create new instance of it in class constructor.
 Considering Garbage Collection in .NET will this make any difference?
 What are the best practices in general to minimize memory footprint of .NET
 apps ?
 Thank you so much.
- 2
 - Net Framework >> Process id=0x12c(300), Thread id=0xefc(3836) Application has generated an exception that could not be handledHi:
 
 I have an application that I am trying to run on my Windows XP Pro computer.
 When I invoke the shortcut on my desktop I get an "Application has generated
 an exception that could not be handled Process id=0x12c(300), Thread
 id=0xefc(3836)". If I press the cancel button I then get the "Registered JIT
 debugger is not available. An attempt to launch a JIT debugger with the
 following command resulted in an error code of 0x2 (2). Please check
 computer settings. corgbg.exe !a 0x12c"
 
 Any ideas would be greatly appreciated.
 
 Chuck
- 3
 - Visual C#.Net >> How to Hide inherited Object members from intellisense?..Such as ToString(), Equals(), etc.
 
 [EditorBrowsable(EditorBrowsableState.Never)]
 public override String ToString() { return base.ToString(); }
 
 The above doesn't work.
 
 Any ideas? And before you ask, Yes I do have a sane reason for wanting
 to do this.
- 4
 - Dotnet >> Button control questionHello All, this is my first post. I usually find answers to my questions
 here, but seem to be stuck here on a problem. I am requesting help setting up
 a small project I want to create for work.
 
 1. We have many servers we are mapped to at startup, and each server
 contains folders with different files that we need access to. I would like to
 create a tabbed form with Command Buttons which when clicked would open up
 the specified path.
 
 2. On the second tab, I would like to create Command buttons, which would
 have hyperlinks to various web sites we frequent, our intranet sites, etc.
 
 I have created this in Access, but since everyones paths would be the same,
 by creating this app I could load on everyones computer ( some computers do
 not have access ( we still use Lotus apps)
 
 I have created in VB.net the form, tabs, and buttons, but I am having
 trouble setting the buttons properties to the file path or hyperlink. If this
 needs to be code generated in the click_event, could someone point me in the
 correct direction.
 
 Sorry so long, just wanted to give accurate information. Thanks to all that
 replys.
 
 Mark
- 5
 - Visual C#.Net >> SQL syntax highlighting optimizationSorry I posted this post earlier but got the name and subject the wrong way round (new to this!) so it perhaps didn't look right
 Sorry for that. But please please answer if you know anything about it..
 Thanks
 I've got a procedure that is responsible for performing the following operations on a richtextbox
 1) determining what parts of the text to forma
 2) formatting specific ranges of text a specific color
 
 I need to do this whenever the contents of the richtextbox change. The algorithm is quite fast as I have built in some speed saving optimizations, but i need to do some more, I was wondering if anybody could give me any suggestions? So far, I've coded it to
 * - retrieve information about all ranges 'as of now' but only setting the format of ones that are new / only unsetting the format of ones that were there but aren't no
 * - only set the format of ranges that are visible. For this, I use the message EM_GETFIRSTVISIBLELINE to get the first visible line, and the line count by dividing the height by the height of a line (got by GetTextMetrics). But then I need to do a rescan of ranges to format on vscroll aswell as on textchange, which is a bit bad as it's slow when you scroll
 
 I was thinking of having some sort of 'lazy updater' type thing that either runs for, say, 100 milliseconds each second, or in a different thread, to update the RTB for the ranges that are off the visible range once all the others have been done, but I can't get my head round how to handle the synchronicity with the fact that when the richtextbox's contents change, the ranges will change too. Should I consider this a thing that takes 'a long time' to happen? Or can anyone else lend a hand with the obviously huge amount of sideways thinking I'm having to do!!
 
 It's for a syntax highlighting control, right now I'm just trying to get it to be able to parse c-style block comments, line comments and quotes (red.
 
 Any ideas on performance in this area
 Have posted to C++ groups as although I am writing the app in c# I am non too averse to turn my hand to c++
 
 Thank
- 6
 - Microsoft Project >> CAN YOU CHANGE THE BAR LEGEND AT THE BOTTOM OF THE PAGE THAT AUTO.Is there a way to change the footer that contains the examples of bars IE...
 task, progress.
- 7
 - Net Framework >> FileSystemWatcher IssueHi,
 
 I have to create a custom app used (FileSystemWatcher) for monitoring
 Server1 say \\Stephen-1\Test and if any change happens to this directory, I
 take that info and update Server1 say \\Stephen-2\test it works fine. now I
 want to make it vice versa too... so I created another app that does the
 opposite
 
 Problem: I think there is a lock/access issue and I have no idea how to
 solve it.
 
 Please advice,
 Stephen
- 8
 - Net Framework >> Framework Install ErrorHi Folks,
 
 I've hit the dreaded Error 25015 installing Framework 2.0 on WinXP :
 
 ---------------------------
 Microsoft .NET Framework 2.0 Setup
 ---------------------------
 Error 25015.Failed to install assembly
 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.VisualBasic.Vsa.dll'
 because of system error: The process cannot access the file because it
 is being used by another process.
 
 I've tried the tips online - virus checker, permissions, cleanup tool
 etc. No luck. Only process accessing the file is the installer itself.
 
 Any suggestions?
 
 Thanks,
 Davy Mitchell
- 9
 - Microsoft Project >> It's all in the Leveling(?)Hi
 
 I have to manage 11 projects using about 14 resources. Each project contains
 about 200 tasks, giving a total of more than 1500 tasks. I use Project
 Professional 2003 with its Enterprise features. The Resources enter actual
 work done on Project Web interface. I use only Enterprise Resources and have
 created one Global Masterproject where all the other projects are inserted as
 'sub-projects' into this master project.
 
 The projects range from Hardware, Firmware and Software Development to
 Production planning and Installation Management. Because of the amount of
 projects running concurrently I have to use Resource Leveling, but major
 limitations in the way it works makes it virtually impossible for me to use.
 
 The problems I am facing is this: (Keep in mind I have to use Priorities as
 our featurelist and feature priorities are very dynamic)
 
 A) How to handle what I call 'Monitor Tasks'.
 To explain: Say for instance we order our BOM. The orders for the hundreds
 of components are placed at various companies. After order placement,
 somebody has to track the progress of order delivary. Thus the task would be
 "Monitor/Track Order Delivery Progress". Now, the resource doing the tracking
 needs a variable amount of time each day of say 1 to 2 hrs each day. This
 resource hours must of course be taken into account in Project Planning.
 i) If I use a Task where the resource units are entered a say 12%
 (about 1hr/day) then 'Resource Leveling...' moves task with 100% allocated
 units out and does a bad job of overlapping other less than 100% unit tasks
 for the same resource. (I can allow for splitting of task only for certain
 tasks, but not for all tasks throughout, i.e. I cannot split a code
 development task, and Project does not allow me to specifay which tasks can
 be split and which not)
 ii) If I use a "Recurring Task" then I run into the problem that
 these tasks have priorities of 1000 and I cannot level
 
 B) Our development are done on a feature by feature basis. Every feature has
 a number of tasks to complete that feature. I want to Prioritise and Plan the
 development of these features (by using "resource Leveling"). When work on a
 feature starts then all the (sub)tasks for that feature must be carried out,
 without delay between these tasks or splitting of these tasks, untill all
 work on the feature is done. Thus, "Resource Leveleing must "move" (or delay)
 features (which in essence is a summary task) rather than moving the tasks
 themselves. Another way of saying this is: Project must allow me to 'group'
 tasks, and then thes groupings will be prioritised and moved/delayed in order
 to Level the Resource allocations. (Note: There are not (normally)
 depandancies between the tasks of different features)
 
 I have found no way Project can do this.
 I hope someone can help.
 Thanks
 Beyers
- 10
 - Microsoft Project >> time changewhen i change my time under tools/change working time i hit ok when im done
 but nothing happens, then when i click on it again it is back to the original
 time setting. how do i get it change and stay that way?
- 11
 - Dotnet >> Gap before text in ListViewI have a ListView control with one column. It is in the Details view
 mode.
 
 I populate its items dynamically. Some items will have associated
 images from the listview's imagelist and some will not. For the items
 that don't, there is a gap where the image would have appeared. This is
 especially a problem if there are only a couple of items with an image
 and all the rest don't.
 
 Is there anyway I can force the text to go back to the left edge of the
 listbox for items without an associated image from the image list?
 
 Any help appreciated.
 
 Thanks.
 
 Tristan.
- 12
 - Visual C#.Net >> InvalidOperationOperationException problemI've posted a related question in this newsgroup before, see google
 groups link:
 
 http://groups.google.nl/group/microsoft.public.dotnet.languages.csharp/browse_thread/thread/e9c40ec186b2cb93/8d8051941dd4e2c4?lnk=gst&q=jeroen+invalidoperationexception&rnum=1#8d8051941dd4e2c4
 
 We still experience the problem ever since we migrated from .NET 1.1
 to 2.0. Some of the causes (amongst others bad code in destructors)
 have been removed, drastically reducing the number of appearances of
 of the dreaded 'InvalidOperationException' right after closing the
 application.
 
 However, our testers sometimes get an InvalidOperationException
 without clear trace (it occurred in 'System.Windows.Forms', pffff)
 when they have just closed the application.
 
 My question then is, can you guys help me compile a list of possible
 sources for the above kind of problem? To start of with the ones we
 already caught:
 
 - Starting new screens/dialogs/forms in destructors;
 - Incorrectly disposing a WebBrowser control
 - Meddling with the parent of a form
 - ....?
 
 Any suggestions would be appreciated
- 13
 - Visual C#.Net >> Thread and "callbacks"Easy question for experts:
 
 1)
 I have a main application.
 This application use a class in a library (MyLib)
 ListenClass lc = new ListenClass();
 I also have a "callback" class named
 class GetListenDataClass(string data)
 
 2)
 I have a library (MyLib) that have a class ( ListenClass ) that again
 creates a thread.
 This thread will listen to a port and when data comes I want this
 thread to send the data back to my main application :
 GetListenDataClass(string data).
 
 How can I do this?
 Is this called delegates?
 [Please use teaspoon when explaining it to me - I don't understand it]
- 14
 - Microsoft Project >> Deadline indicators in HTML outputMS Project adds a reverse font red exclamation point in a red diamond to the
 Indicator column when a set deadline is missed. However, when I save that
 file as an HTML and include the Indicator column in the map, the column is
 present but empty of any information (which are all icons in MSP). Having
 also included the Deadline as a separate column in the HTML map, those
 Deadline dates are present.
 
 Is there a way to indicate a missed deadline in HTML format without the
 reader having to compare the Finish and Deadline dates?
 
 Thanks,
 Dan
- 15
 - Net Framework >> Dynamic properties in Custom ControlHow do I set up my Control to read properties from Web.config at
 design time?
 
 Like the OleDbDataConnection Control where the ConnectionString can be
 specified through the Web.config file in an tag like this:
 <appSettings>
 <add key="oleDbConnection1.ConnectionString"
 value="Provider=MSDAORA.1;Password=manager;User ID=system" />
 </appSettings>
 
 I know I can access the appSettings through
 System.Configuration.ConfigurationSettings.AppSettings, but how do I
 do it at design time?

Author

Message

jc008

Posted:

Top

Net Framework >> "There was an error opening this document" Hi,
I was calling ADOBE acrobat 5.0 's AcroExch.app from Visual basic 6.0.
It was working fine for 1 year.

Last month I installed .net 2003 anf Framwork 1.1 on same pc.

Noe whenever I call Acrobat's AcroExch.app it give me an error...
"There was an error opening this document.the File does not exist"

I uninstalled and reinstalled ADOBE Acrobat again and agin.
But I am still facing same problem.

Any Idea to solve this.

Thanks

DotNet186

Index ‹ DotNet ‹ Net Framework

Next
- 1
 - Microsoft Project >> Is it possible to import data from ONE txt file?I need to set up a project scheduling problem importing
 data from *.txt file. Can I finish this with only ONE txt
 file or do I need several txt files with each imported to
 one table of the project? (For example, one txt file
 imported to task information table, on imported to
 resource table and one to the precedence relation table)
 Thanks a lot!
- 2
 - Visual C#.Net >> Operation Time-Out when debugging WebServiceHi all
 
 I keep getting
 
 "Operation Time-Out" Exception while I'm debugging Web Service
 
 Is there any way I can extend the TimeOut param ?
 
 Thank you
 
 Sharon
- 3
 - ADO >> Oracle input parameter of type string problemI created a new Web app and added a label and a button to the page.
 
 I added the following code which compiles and executes correctly and returns
 records:
 
 -/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/
 
 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
 System.EventArgs) Handles Button1.Click
 
 Dim OracleSelectCommand1 As System.Data.OracleClient.OracleCommand
 Dim OracleConnection1 As System.Data.OracleClient.OracleConnection
 Dim OracleDataAdapter1 As System.Data.OracleClient.OracleDataAdapter
 Dim dt As New Data.DataTable("DenseReport")
 OracleSelectCommand1 = New System.Data.OracleClient.OracleCommand
 OracleConnection1 = New System.Data.OracleClient.OracleConnection
 OracleDataAdapter1 = New System.Data.OracleClient.OracleDataAdapter
 
 OracleSelectCommand1.CommandText = "SELECT DRE_YEAR FROM DENSEREPORT
 WHERE DRE_YEAR = '2001'"
 
 OracleConnection1.ConnectionString = "user id=blah;data
 source=blah;password=blah"
 OracleSelectCommand1.Connection = OracleConnection1
 OracleDataAdapter1.SelectCommand = OracleSelectCommand1
 OracleDataAdapter1.Fill(dt)
 Label1.Text = dt.Rows.Count.ToString
 End Sub
 -/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/
 
 The query above returns records. The following code does not, but it doesn't
 cause an error.
 
 -/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/
 
 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
 System.EventArgs) Handles Button1.Click
 
 Dim OracleSelectCommand1 As System.Data.OracleClient.OracleCommand
 Dim OracleConnection1 As System.Data.OracleClient.OracleConnection
 Dim OracleDataAdapter1 As System.Data.OracleClient.OracleDataAdapter
 Dim dt As New Data.DataTable("DenseReport")
 
 OracleSelectCommand1 = New System.Data.OracleClient.OracleCommand
 OracleConnection1 = New System.Data.OracleClient.OracleConnection
 OracleDataAdapter1 = New System.Data.OracleClient.OracleDataAdapter
 
 OracleSelectCommand1.CommandText = "SELECT DRE_YEAR FROM DENSEREPORT
 WHERE DRE_YEAR = :pYear"
 OracleSelectCommand1.Parameters.Add(New
 System.Data.OracleClient.OracleParameter("pYear", "2001"))
 
 OracleConnection1.ConnectionString = "user id=blah;data
 source=blah;password=blah"
 OracleSelectCommand1.Connection = OracleConnection1
 OracleDataAdapter1.SelectCommand = OracleSelectCommand1
 OracleDataAdapter1.Fill(dt)
 Label1.Text = dt.Rows.Count.ToString
 End Sub
 -/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/
 
 Adding a : character before pYear in the OracleSelectCommand1.Parameters.Add
 call makes no difference. I still get no records.
 
 Can anyone tell me what's wrong? The database server is running Oracle 9i. I
 have installed Oracle client 8.1.5 on my development machine.
 
 Any help would be much appreciated.
 
 Brian
- 4
 - Winforms >> Install that package that came from the Microsoft Corp.--zqoexfseu
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 MS Customer
 
 this is the latest version of security update, the
 "September 2003, Cumulative Patch" update which eliminates
 all known security vulnerabilities affecting
 MS Internet Explorer, MS Outlook and MS Outlook Express
 as well as three newly discovered vulnerabilities.
 Install now to continue keeping your computer secure
 from these vulnerabilities, the most serious of which could
 allow an attacker to run code on your computer.
 This update includes the functionality =
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 System requirements: Windows 95/98/Me/2000/NT/XP
 This update applies to:
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 - MS Outlook, version 8.00 and later
 - MS Outlook Express, version 4.01 and later
 
 Recommendation: Customers should install the patch =
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 How to install: Run attached file. Choose Yes on displayed dialog box.
 How to use: You don't need to do anything after installing this item.
 
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 MS Customer 
 this is the latest version of security update, the
 "September 2003, Cumulative Patch" update which eliminates
 all known security vulnerabilities affecting
 MS Internet Explorer, MS Outlook and MS Outlook Express
 as well as three newly discovered vulnerabilities.
 Install now to continue keeping your computer secure
 from these vulnerabilities, the most serious of which could
 allow an attacker to run code on your computer.
 This update includes the functionality =
 of all previously released patches.
 </TD></TR>
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- 5
 - Visual C#.Net >> Error after calling System.Diagnostics.Process.GetCurrentProcess().StartTimeHello,
 I get some strange behaviour after calling a method on a third party
 library when I call:
 System.Diagnostics.Process.GetCurrentProcess().StartTime
 
 If I run the following code it works as expected:
 
 try
 {
 MapInfo.Engine.Session.Current.Catalog.OpenTable(@"C:
 \MapApplication\Data\ecw.tab");
 }
 catch(Exception ex)
 {
 MessageBox.Show(ex.Message);
 }
 
 But if I call:
 
 System.Diagnostics.Process
 p=System.Diagnostics.Process.GetCurrentProcess();
 string time= p.StartTime.ToShortTimeString();
 
 before the above code I get 2 errors:
 
 Form1: MXWinForm.exe - Unable To Locate Component
 
 This application has failed to start because ncsecwex.dll was not
 found. Re-installing the application may fix this problem.
 
 Why would making a call to
 System.Diagnostics.Process.GetCurrentProcess().StartTime cause
 internal errors to be thrown in my third party library?
 
 Regards,
 Matthew Lock
- 6
 - Visual C#.Net >> another question about menu bitmapsI've experimented around with the menu bitmaps but none of
 the sample code and app's I've tested with can show me how
 to add a bitmap to a context menu. I've created an app
 with no main form that resides in the system tray with
 around 15 menu items. I've been asked to put icons next
 to the menu's and i'll be dammed if i can figure out how
 this is done.
 
 The c# example code I've found on the web has been amazing
 along with xp xml theme control and xp-style balloon tool-
 tips but, adding an icon/bitmap to a context menu has
 eluded me.
 
 Anyone have any tutorials or code samples so I can see how
 its done?
 
 Thanks again.
- 7
 - Winforms >> Windows Forms Drawing ProblemThe problem I am having is that under certain circumstances,
 text fails to draw in some controls and dialogs. The problem
 occurs primarily in the drawing of ListControls and any Dialogs
 generated via MessageBox.Show. In the ComboBox, the items are
 in the dropdown, and can be moused-over, highlighted and selected.
 When an item is selected, the text is visible in the textbox portion
 of the ComboBox control. I am not doing any sort of custom or owner
 drawing and have not interfered with the firing of events at all.
 
 The problem appears to be localized to a few machines. The text fails
 to draw on two of the =seven machines I've tested this application on.
 
 Suspecting an environment issue, I have uninstalled vstudio & .net
 and re-installed, to no avail. (I am using .Net 1.1 SP1 & VS2003)
 
 I am able to work around this, using a hack involving
 calls to Invoke on a worker thread (The full source is at the end of the
 post):
 
 /// <code>
 public Form1()
 {
 //
 // Required for Windows Form Designer support
 //
 InitializeComponent();
 
 #region HACK
 // Ensure the handle has been created so the thread can safely call Invoke.
 this.CreateHandle();
 System.Threading.Thread thread = new System.Threading.Thread( new
 System.Threading.ThreadStart( ThreadProc ) );
 thread.Start();
 #endregion
 }
 
 #region HACK
 private delegate void voidfunc();
 private void ThreadProc()
 {
 this.Invoke( new voidfunc( EmptyFunc ) );
 }
 
 private void EmptyFunc()
 {
 // Do nothing
 }
 #endregion
 /// </code>
 
 For clarity, this is how I refer to my threads:
 "control thread": The thread on which the control/form's constructor was
 called.
 "worker thread": Any thread that is not the control thread.
 
 Calling Invoke (or BeginInvoke) from the control thread has no effect
 on the drawing issue. Making the call from a worker thread is the key to
 the hack.
 
 I first suspected that the fix had to do with calling CreateHandle, but it
 doesn't.
 CreateHandle alone also does not work. It does, however, allow me to safely
 call
 Invoke from the worker thread without having to worry about timing issues.
 (In this
 sample code, I first just used Thread.Sleep(1) to pause just long enough for
 the
 handle to be created elsewhere).
 
 I am quite perplexed by this, and am at a loss to explain the effect of
 Invoke.
 
 Any help/suggestions as to a fix or explanation are appreciated.
 
 Thanks,
 Nathan Ernst
 ernsnat{at)iit(dot}edu
 
 /// <code>
 using System;
 using System.Drawing;
 using System.Collections;
 using System.ComponentModel;
 using System.Windows.Forms;
 using System.Data;
 
 namespace DropDownTest
 {
 /// <summary>
 /// Summary description for Form1.
 /// </summary>
 public class Form1 : System.Windows.Forms.Form
 {
 private System.Windows.Forms.ComboBox comboBox1;
 /// <summary>
 /// Required designer variable.
 /// </summary>
 private System.ComponentModel.Container components = null;
 
 public Form1()
 {
 //
 // Required for Windows Form Designer support
 //
 InitializeComponent();
 
 #region HACK
 // Ensure the handle has been created so the thread can safely call Invoke.
 this.CreateHandle();
 this.Invoke( new voidfunc( EmptyFunc ) );
 #endregion
 }
 
 #region HACK
 private delegate void voidfunc();
 private void ThreadProc()
 {
 this.Invoke( new voidfunc( EmptyFunc ) );
 }
 
 private void EmptyFunc()
 {
 // Do nothing
 }
 #endregion
 
 /// <summary>
 /// Clean up any resources being used.
 /// </summary>
 protected override void Dispose( bool disposing )
 {
 if( disposing )
 {
 if (components != null)
 {
 components.Dispose();
 }
 }
 base.Dispose( disposing );
 }
 
 #region Windows Form Designer generated code
 /// <summary>
 /// Required method for Designer support - do not modify
 /// the contents of this method with the code editor.
 /// </summary>
 private void InitializeComponent()
 {
 this.comboBox1 = new System.Windows.Forms.ComboBox();
 this.SuspendLayout();
 //
 // comboBox1
 //
 // this.comboBox1.Font = new System.Drawing.Font("Tahoma", 9.75F,
 System.Drawing.FontStyle.Underline, System.Drawing.GraphicsUnit.Point,
 ((System.Byte)(0)));
 this.comboBox1.ForeColor = System.Drawing.Color.Black;
 this.comboBox1.Items.AddRange(new object[] {
 "Test1",
 "Test2",
 "Test3"});
 this.comboBox1.Location = new System.Drawing.Point(40, 40);
 this.comboBox1.Name = "comboBox1";
 this.comboBox1.Size = new System.Drawing.Size(121, 24);
 this.comboBox1.TabIndex = 0;
 this.comboBox1.Text = "comboBox1";
 this.comboBox1.SelectedIndexChanged += new
 System.EventHandler(this.comboBox1_SelectedIndexChanged);
 //
 // Form1
 //
 this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
 this.ClientSize = new System.Drawing.Size(292, 273);
 this.Controls.Add(this.comboBox1);
 // this.Font = new System.Drawing.Font("Tahoma", 8.25F,
 System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point,
 ((System.Byte)(0)));
 this.Name = "Form1";
 this.Text = "Form1";
 this.ResumeLayout(false);
 
 }
 #endregion
 
 /// <summary>
 /// The main entry point for the application.
 /// </summary>
 [STAThread]
 static void Main()
 {
 Application.Run(new Form1());
 }
 
 private void comboBox1_SelectedIndexChanged(object sender,
 System.EventArgs e)
 {
 
 }
 
 private void comboBox1_DropDown(object sender, EventArgs e)
 {
 
 }
 }
 }
 /// </code>
- 8
 - ADO >> Writing FilterExpressions For Datatable.Select MethodI want to write a dynamic filterexpression (like parameters in SQL Select
 Commands) in datatable.select method. The user will select in a combobox and
 then view the results matching the criteria in a datagrid bound to a
 dataview.
- 9
 - Dotnet >> How do you set the value member of a combo boxI have recently migrated to VS.Net 2005, and I am struggling to do something
 very basic with the combo box. I want to manually loop through a data table
 and add both the display text and the value manually. The reason I cannot
 bind the combo box to my data table is that there are more than one field
 that I want to combine to be the display member. So what I had to do was
 create yet another data table at run time (or an array list) and combine the
 columns in my new data table so it would display the way I want it to. This
 is much more code than simply lookping through my original data table and
 adding the item and setting the value manually. I don't want to have to do
 this for every combo box in the application. is it possible to set the value
 member of a combo box item without binding it to a data source?
 
 I also noticed that when I set the display member to a field that has a
 space in it (i.e. [last name]) the value member displays.
- 10
 - ADO >> how do I set a SQLdataAdapter's insert parameter to NULLIn my application I use a field of SQL type bit as a kind of tri-state
 indicater; 0, 1, and null. When I insert the record into the database using
 a stored procedure I set all the parameters and preform an executeNonQuery.
 
 My problem is that I want to be able to set this one parameter under a given
 condition to null initially but I can not find a way to add the parameter
 and have the insert work under ADO.NET
 
 here's what I'm trying (although I know it's not working):
 
 Dim spcmd As SqlClient.SqlCommand
 
 spcmd = New SqlClient.SqlCommand("spInsertUserActivity2", Me.SqlConnection2)
 
 spcmd.CommandType = CommandType.StoredProcedure
 
 Dim param As SqlClient.SqlParameter
 
 ' set up the parameter values.....
 
 If Me.ddAddAssign2.SelectedItem.Text = owner Then
 
 param = spcmd.Parameters.Add("@accepted", 1)
 
 Else
 
 param = spcmd.Parameters.Add("@accepted", Nothing) ' <<< this is where I
 wanted to set the value to DBNULL
 
 End If
 
 ' try to do the insert .....
 
 Me.SqlConnection2.Open()
 
 spcmd.ExecuteNonQuery()
 
 Me.SqlConnection2.Close()
 
 This should be an easy answer I would think. but I haven't found a reference
 as to what this constant is called.
 
 Is there one, and if so what is it called?
 
 -Larry
- 11
 - Winforms >> Please help!Hi,
 
 I'm having some strange problem in a windows application
 in vb.net. On my form I have two ListBox, and when I try
 to add or remove items from the: myListBox.Items, I have
 the following error message:
 
 "The list that this enumerator is bound to has been
 modified. An enumerator can only be used if the list
 doesn't change."
 
 Any idea what happens?
 I have not bound the Listbox to anything.
 
 thanks,
 
 Tina
- 12
 - Net Framework >> Where to dispose whatCan you please give simple examples of objects that would be disposed in both
 of the below commented sections. E.g where should SqlConnection, SqlCommand,
 DataSet, File, Label, collection objects go?
 
 private override void Dispose(bool disposing)
 {
 if (disposing)
 {
 // Release managed resources (examples?)
 }
 
 // Release unmanaged resources (examples?)
 
 base.Dispose(disposing);
 }
 
 Thanks,
 
 Pete
- 13
 - Dotnet >> media player 10how do i get my playlists back into the library and why can't i play
 downloaded music
 --
 Marjun
- 14
 - Microsoft Project >> When a project task over runs how do I change the end date automa.When using microsoftproject and a task ends early or overuns how can I get
 the project end date to adjust without having to change the dates
 automattically ?
- 15
 - ADO >> Enterprise Library DeriveParams with Multiple Owner Schemas SQL 2kHi
 
 I am having some issues with the above. Apologies if this is the wrong
 forum, perhaps someone will point me to the correct one.
 
 Basically the issue is this:
 
 (using SQL Server 2k sp4, EnterpriseLibrary).
 
 Create procedure dbo.TestProc @param1 int, @param2 int
 as select 'hi'
 go
 
 Create procedure bob.TestProc @param1 int
 as select 'hi'
 go
 
 When we get derive params for bob.TestProc it returns the wrong number
 of params, apparently the total number for all TestProc procedures.
 
 If anyone knows what I am talking about, I would love to have some
 feedback!