RecordStateChanged Object reference not set to an instance

TamerHesham

RecordStateChanged Object reference not set to an instance

DotNet37
Object reference not set to an instance of an object.

at System.Data.DataTable.RecordStateChanged(Int32 record1, DataViewRowState

oldState1, DataViewRowState newState1, Int32 record2, DataViewRowState

oldState2, DataViewRowState newState2)

at System.Data.DataTable.SetNewRecord(DataRow row, Int32 proposedRecord,

DataRowAction action, Boolean isInMerge)

at System.Data.DataRow.SetNewRecord(Int32 record)

at System.Data.DataRow.EndEdit()

at System.Data.DataRow.set_Item(DataColumn column, Object value)

at System.Data.DataRowView.SetColumnValue(DataColumn column, Object

value)

at System.Data.DataRowView.set_Item(String property, Object value)

at Lumedx.CardioDoc.UDF.CheckBoxAdapter.checkBox_CheckStateChanged(Object

sender, EventArgs e)

I get the above exception when I try to change the value of a column of a

data row view in the CheckStaeChanged event. The column is the same one the

checkbox's CheckState is bound to.

-

Val

Registered User

Tue May 03 17:43:27 CDT 2005

Re:RecordStateChanged Object reference not set to an instance

Hi Sankar,

This error means that your reference to the datarow or datacolumn probably

is Nothing and you try to change a value for it. Try to debug a code and see

if it is not a Nothing

--

Val Mazur

Microsoft MVP

xport.mvps.org">xport.mvps.org

"Sankar Nemani" <snemani@nospamlumedx.com>wrote in message

Quote

Object reference not set to an instance of an object.

at System.Data.DataTable.RecordStateChanged(Int32 record1,

DataViewRowState oldState1, DataViewRowState newState1, Int32 record2,

DataViewRowState oldState2, DataViewRowState newState2)

at System.Data.DataTable.SetNewRecord(DataRow row, Int32 proposedRecord,

DataRowAction action, Boolean isInMerge)

at System.Data.DataRow.SetNewRecord(Int32 record)

at System.Data.DataRow.EndEdit()

at System.Data.DataRow.set_Item(DataColumn column, Object value)

at System.Data.DataRowView.SetColumnValue(DataColumn column, Object

value)

at System.Data.DataRowView.set_Item(String property, Object value)

at

Lumedx.CardioDoc.UDF.CheckBoxAdapter.checkBox_CheckStateChanged(Object

sender, EventArgs e)

I get the above exception when I try to change the value of a column of a

data row view in the CheckStaeChanged event. The column is the same one

the checkbox's CheckState is bound to.