Check DataGridViewCheckBoxColumn in C#.net

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Hi Guys,

I am developing windows application using C#.net...In that I have one datagridview with 3 DataGridViewCheckBoxColumn (checkbox1,checkbox2,checkbox3)..

here i want to uncheck the remainining 2 colums while i checked one particular column..for eg,1st i check checkbox1 and i change to check checkbox2,that time i need to uncheck checkbox1 column automatically and viceversa........

Help me out guys!!!!!!!!!

Posted 22-Aug-11 2:12am

Nathansathya

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Anil Pandya · Answer 1 · 2011-08-22T02:24:00

Solution 1

do it in CheckedChanged event of clicked control, you can also get current row of the clicked control, and also you can find the remaining controls from the same row.

Posted 22-Aug-11 2:24am

Anil Pandya

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Nathansathya 22-Aug-11 8:34am

Hi Anil,

There is no CheckedChanged event occur for datagridview...How can i create it?
am developing Windows application....

Nathansathya · Answer 2 · 2011-08-22T23:13:00

Finally i got solution for this....

write following code on CellValidating event,

C#

int column = e.ColumnIndex;
            int row = e.RowIndex;
            if (column == 2)
            {
                DataGridViewCheckBoxCell c = dgv1[e.ColumnIndex, e.RowIndex] as DataGridViewCheckBoxCell;
                if (c != null)
                {
                    string a = e.FormattedValue.ToString();
                    if (a == "True")
                    {                       
                        dgv1.Rows[row].Cells["column2"].Value = false;
                        dgv1.Rows[row].Cells["column3"].Value = false;
                    }
                    else
                    {                        
                        dgv1.Rows[row].Cells["column1"].Value = false;
                        dgv1.Rows[row].Cells["column2"].Value = false;
                        dgv1.Rows[row].Cells["column3"].Value = false;
                    }
                }
            }

repeat the code for remaining columns........

sarath ss · Answer 3 · 2011-08-23T01:49:00

Solution 3

DataTable dt = new DataTable()
foreach (DataRow row in dt.Rows)
{
if (row["gridviewcheckboxcolumnname"].ToString() == "True")
{
//your Code
}
}

Posted 23-Aug-11 1:49am

sarath ss