find a row in the datatable
Can someone please help with the following problem.
I am trying to locate a row in the datatable to delete but am not sure how to go about this. I have decided to use a for loop to iterate through the datatable until a match is found with the entered ID number. However, when the matching ID number is found, the code that I use to delete the found row doesnt seem to work. I get a thrown exception saying that the row at position (n)does not exist in the table and the datagrid on the form goes blank.
The code that I am using to try to delete the found row is shown below.
int RowCount = 0;
foreach(DataRow dr in mydataset.Tables[1].Rows)
{
RowCount ++;
if (txtStudID.Text == dr[0].ToString())
{ mydataset.Tables[1].Rows[RowCount].Delete();
mydataset.WriteXml("C://Student1.xml");
mydataset.WriteXmlSchema("C://Student1.xml");
}
} //end of for loop
mydataset.Tables[1].Rows[RowCount].AcceptChanges();
f2.dataGrid1.DataSource = mydataset;
return;
Any help will be very much appreciated.
KieranPosted Jul 12, 2006, 12:08 PM
I imagine the problem is that you are incrementing RowCount before the conditional check and would get a row not found error as RowCount would be 1 larger that the table row count on the last iteration of your foreach loop.
Try incrementing RowCount after your if statement.