Datagrid view Issues

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1.00/5 (1 vote)

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hi gays,

i create windows application and in this app. i create 1 form, in this form i use data-grid view.

in grid i check some validation like value must be integer when validate cell....if value is not integer then i want to perform "e.cancel"
but in cell validated event e.cancel not work....any alternate solution???

thx in adv.

Posted 20-Mar-13 1:29am

Member 9444634

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[no name] 20-Mar-13 8:12am

Pleas provide the code.

Member 9444634 20-Mar-13 8:23am

which code u want ????

Member 9444634 20-Mar-13 8:24am

if (Convert.ToString(dgvItemDetails["QTY", e.RowIndex].Value).Contains("-.") )
{
MessageBox.Show(this, "Please enter proper numeric value.", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
//e.Cancel = true;
return;
}

Member 9444634 20-Mar-13 8:26am

this code is write in cell validated event

ZurdoDev 20-Mar-13 9:03am

You need to post all relevant code.

Member 9444634 20-Mar-13 9:30am

if you dnt know then its ok man!!!!

i dnt want to teach you....

CHill60 20-Mar-13 11:45am

Hey ... ryanb31 is only trying to get enough information out of you for him to be able to help. At the moment I think he would have more success drawing blood from a stone.

phil.o 20-Mar-13 11:57am

Come on ; how do you expect us to help you if you cannot manage to describe you problem yourself ?

Member 9444634 21-Mar-13 1:38am

already i describe my problem but ryanb31 still ask for relevant code.

can u say which code is still require???

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CHill60 · Answer 1 · 2013-03-20T05:50:00

Now that we have just about enough information to get an idea of what the problem is ...
You have put this code in the CellValidated event which

Quote:
"Occurs after the cell has finished validating."

to quote the text that appears in the properties window when you highlight that event.
Try putting the validation in the CellValidating event where e.Cancel will be available to you

[Edit] Attempting to make it clearer ...

C#

private void dgvItemDetails_CellValidated(object sender, DataGridViewCellEventArgs e)
 {
     // It is pointless to try to "validate" after the cell has validated
     //if (Convert.ToString(dgvItemDetails["QTY", e.RowIndex].Value).Contains("-."))
     //{
     //    MessageBox.Show(this, "Please enter proper numeric value.", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
     //    //e.Cancel = true;
     //    return;
     //}
 }

 private void dgvItemDetails_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
 {
     // This is the event to use to validate
     if (Convert.ToString(dgvItemDetails["QTY", e.RowIndex].Value).Contains("-."))
     {
         //This line does not compile in VS2010 MessageBox.Show(this, "Please enter proper numeric value.", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
         MessageBox.Show(this, "Please enter proper numeric value.", "Error Caption", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
         e.Cancel = true;   // This is now available to you
         return;
     }
 }