"InvalidArgumen t=Value of '0' is not valid for 'index'

[Jaydeep Ramavat]

I am facing a problem in binding the datagridviewcom bo box cell.

DataGridViewComboBoxCell cmbControlTypes= new DataGridViewComboBoxCell();
 
cmbControlTypes.DataSource = result.resultTable;
cmbControlTypes.DisplayMember = "name";
cmbControlTypes.ValueMember = "id";

after binding the comboboxcell and adding it to row.
when i access the item collection as follows.

cmbControlTypes.Value = cmbControlTypes.Items[0]

i am getting an error

"InvalidArgumen t=Value of '0' is not valid for 'index'.
Parameter name: index"

is there any solution for above problem?.

[tlhintoq]

TIP: When you are writing your question, there is a button on the tool bar that wraps the [code] tags around your copy/pasted code. It helps a bunch. Its the button with a '#' on it. More on tags. They're cool. Check'em out.

[tlhintoq]

is there any solution for above problem?.

Yes. Don't presume you have items. Get used to range checking.

if (cmbControlTypes.Items.Count > 0)
{
 
cmbControlTypes.Value = cmbControlTypes.Items[0]
 
}

[Jaydeep Ramavat]

Thanks for your writing instruction and reply.

Actually i was also doing count on items property.
In my application i am getting count = 7, so not a problem.

[Jaydeep Ramavat]

I have figured out the issue by following code.

In below code loadcontrol function loads table and bind it to the cmbcontroltypes combo.

               DataTable dtReturn = loadControlTypes(cmbControlTypes);
 
                if (dtReturn != null)
                {
                    if (dtReturn.Rows.Count > 0)
                    {
                        cmbControlTypes.Value = dtReturn.Rows[0][0];                        
                    }
                }

I can get the member at 0 position at selected value in datagridviewcom boboxcell.

Thanks and Regards
Jay