How to use the base keyword to call a base class method (not a constructor)

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  - 1
    - TableAdapter not updating table if the table is empty when loaded?I am having problems with the table adapter not updating (inserting a new
      record) the sql server table if I open the form with out any records already
      in the sql server table.
      
      If I add on record in sql server management studio, the the table adapter
      will work correctly, but there has to be at least on record.
      
      What is going on??
      
      There are not any exceptions being thrown.
      
      I checked the table adapter commands (delete, insert, select, update) and
      they match the other table adapter that are working correctly. (just
      different fields and parameters)
      
      What else can I check for?
      
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  - 2
    - CollectionBase problemHi,
      
      i have a windows application.
      
      This application uses a object that its of type collectionbase.
      
      For other hand i have a ListBox, and i use this collection to fill it.
      
      I have implemented the methods (in my class that derives from collection
      base):
      
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      return (type of object) List[index]
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      //to remove from collection
      public void Remove_(type of the object object)
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      I dont know if my steps are correctly:
      
      1) when application loads i fill the collection, and i fill the listbox with
      the collection.
      2) When a person clicks in a item i get the object from the collection with
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      4) i assign the datasource of the listbox to null
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      removed in step 3)
      
      When i execute the application, and i delete an item, all goes correctly
      except when i delete the last.... In this case (deleting the last item) the
      application deletes it, but when i selected another item, i get an Error of
      type IndexOutOfRange exception....
      
      Questions:
      1) What could be the problem?
      2) Its my logic to do this wrong?
      3) Generally this kind of stuff are made following this way?
      
      Any advice would be appreciated...
      --------
      Thanks
      Regards.
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  - 3
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      Thanks,
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      Thanks for the help
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      when loading the dll through a console application. However the same fails
      when running it though a Windows service. The service is running under the
      local system account.
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  - 6
    - building rotor 2.0Dear All,
      I have extended the JScript compiler in rotor. Some of my code is added
      to the JScript classes and some of my code is new classes and I have put
      these in a new namespace "mynamespace" but all the code is in the
      directory jscript. I have no problem building the code in the
      jscript\engine directory. In particular, I can use the
      Microsoft.JScript namespace in mynamespace and I can use mynamespace in
      the files that are part of the Microsoft.JScript namespace.
      
      The problem occurs when the build moves into the jscript\jsc directory
      and it finds a Using mynamespace directive for which it cannot find a
      reference.
      
      I have looked in
      C:\rotor\sscli20\binaries.x86chk.rotor\bin\rotor_x86\rotor_x86\Microsoft
      .JScript.dll and it contains my code from the jscript\engine including
      code from mynamespace.
      
      From what I understand of the build process, the compiler is looking in
      C:\rotor\sscli20\binaries.x86chk.rotor\ref\Microsoft.JScript.dll to
      resolve references but in this file there is none of my code and no
      mention of mynamespace.
      
      I'd be grateful for any ideas.
      
      Mohammad Alshriadeh
      Computer Science Department(Neat Group)
      The University of Hull
      Hull
      United Kingdom
      HU6 7RX
      Tel: 01482-465253
      
      *** Sent via Developersdex http://www.developersdex.com ***
  - 7
    - Deleting In Strongly typed DatasetHi All!
      
      After a long time for trying understand how strongly typed dataser
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      deleting, it only delete record from the dataset but not from the database.
      I've try many thing but I turn arround. I paste you the code I use.
      
      Me.cnAlbums.Open()
      Dim Row As DsAlbums.PhotoRow =
      Me.DsAlbums.Photo.FindByPhotoId(CInt(Me.lblPhotoId.Text))
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      delete..?
      Me.UpdateFlag = True
      Me.cnAlbums.Close()
      
      Sorry for my english but I'm french and I didn't get any response on the
      french newsgroup
      
      Thank a lot,
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  - 9
    - Close not closing...I've written a small app which has 2 buttons.
      
      The 1st button goes away to a directory full of SQL Scripts, and then
      runs them against the database.
      
      The 2nd button has code to do some modifications to the database,
      looking like the code below:
      _______________________________________________________________________
      _________
      string connectionString;
      connectionString =
      Properties.Settings.Default.DatabaseConnectionString + databaseName;
      
      // create a new SqlConnection object with the appropriate
      connection string
      SqlConnection sqlConn = new
      SqlConnection(connectionString);
      try
      {
      // open the connection
      sqlConn.Open();
      
      // create the command object
      SqlCommand sqlComm = new SqlCommand(SQLCommands,
      sqlConn);
      sqlComm.ExecuteNonQuery();
      
      // close the connection
      sqlConn.Close();
      MessageBox.Show("Operation Completed");
      }
      _______________________________________________________________________
      _________
      
      One of the scripts run from the script folder Drops a user, and then
      Re-Creates them.
      If I hit the script button first, then everything works fine.
      However if I run the code button first, and then hit the script
      button, an exception is thrown
      saying that the user can not be dropped since they are currently
      logged in!
      I'm guessing I'm missing something, but it appears the Close method on
      the sqlConnection object isn't
      actually closing the connection...
      
      Terminating the application and starting again resets the problem,
      however there is nothing in
      the dispose methods which would do that.
      
      I've tried exchanging Close for Dispose but it made no difference.
      Any help would be appreciated.
      Cheers
      Chris.
      saying that a user is
  - 10
    - normal multiline editor.Visual C++ 2005 Express
      
      MVP's and experience programmer's only please!...
      
      I need to get the number of lines in a textbox so I can insert them into a
      listview. The text comes from my database and is unformatted. I display the
      text to my user in the listview. The textbox I create logically in the
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      When the user changes the column size then I reload the lines accordinally.
      The problem I am having is when I get the lines property which is a
      array<^>^(). The lenght is always 1 no matter how many lines are in the
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      In MFC when the lines are wraped the new line character is automattically
      inserted, but here it's not.
      
      Can you help me solve this problem? I would really appreciate it!
      
      Thanks!...
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      Eric Miller
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    - custom controlhi i am rajendra i am posting my first question to this group i have
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      --
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      http://mvp.support.microsoft.com
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    - Building DataSets using SQL Servers MetaDataHi all.
      Using Visual Studio VB.NET and SQL Server 2000.
      When I drag tables from the SQL Server Explorer into a dataset I am building
      I get the table, fieldnames and types. But, why doesn't it put in relations,
      defaults and all the other information from the SQL Server. It takes time to
      do this in VS when it is already done on the SQL Server. When I build a
      diagram in SQL Server all this information gets there automaticly, but not
      in VS.NET. Are there som settings I am missing here? We do have some
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    - Project Web Access Views - Help Help HelpHi all
      
      I can add and modify project web access views for assignments,
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      me to drink. Does anyone know how to get the view to produce data on
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      MTIA
      
      Allen
  - 15
    - How to use the base keyword to call a base class method (not a constructor)Hello,
      
      I have read that the base keyword can be used not only to control a base
      class instantiation (thus calling one of the base class constructors) but
      also to access any other public or protected method in the parent class ...
      I have search all over for an example of how to do this but have failed.
      What I was wondering is about the syntax necessary to make such a call .....
      Thx..
      
      Bob Rock
  - 16
    - Where do forms get the default icon from?I've replaced App.ico and it appears to have worked at the application level
      but my forms haven't updated. Presuming I needed to change the icon on the
      forms I started replacing them. But in the course of looking at some of the
      forms and their associated resources, I discovered there were absolutely no
      references to any icons in those files.
      
      This raises the question, where do the forms get their default icon from? I
      would have hoped they'd simply change to reflect the application icon by
      default but that is obviously not the case.
      
      Any ideas?
      
      Thanks,
      Doug Harber

Csharp

Hello,

I have read that the base keyword can be used not only to control a base
class instantiation (thus calling one of the base class constructors) but
also to access any other public or protected method in the parent class ...
I have search all over for an example of how to do this but have failed.
What I was wondering is about the syntax necessary to make such a call .....
Thx..

Bob Rock

Top

Re: How to use the base keyword to call a base class method (not a constructor)

Bob

"Greg Ewing [MVP]" <gewing@_NO_SPAM_gewing.com> wrote in message
news:#5mhTr1aDHA.1488@TK2MSFTNGP12.phx.gbl...
> Bob, did you check out MSDN? There's an example up there. Is there
> something that this sample doesn't cover?
>
>
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csref/html/
vclrfbasepg.asp
>
> --
> Greg Ewing [MVP]
> http://www.citidc.com
>

Thank you Greg, I searched on my numerous books and also on the msdn but I
was expecting a diffente syntax that is why I did not find it .... "base"
seems to be used pretty much like "this" but it provides access to the
parent class instead of the instance object.

Bob Rock

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