datagrid current column

Question

how to get datagrid view current column value on move the cursor one column to another column

Sunny Sharma · Answer

Hi Vadivel, Definitely it will give you an error if you use it like this. The moment a DataGridView starts initializing it fires a CellValue_Changes event every time it initializes a new cell or change the value of any cell whether it is a header cell or it's a row cell. Well, that's not a problem in your code. The problem is you're trying to access " DGV.CurrentRow.Cells[0].Value " which is null. Ther's no CurrentRow the moment a DataGridView Gets Initialized. Hope you got the reason why the error is there. If you want to track if the cell value is changed, you can try CellEndEdit event: private void DGV_CellEndEdit(object sender, DataGridViewCellEventArgs e) { if (e.ColumnIndex == 0) { if ((string)DGV.CurrentRow.Cells[0].Value.ToString() != string.Empty) MessageBox.Show("ok"); } } Hope it helps :)

vadivel · Answer

private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e) { if (e.ColumnIndex == 0) { if ((string)dataGridView1.CurrentRow.Cells[0].Value.ToString() != string.Empty) MessageBox.Show("ok"); } } Error : NullReferenceException was unhandled Object reference not set to an instance of an object. How to solved this error

Sunny Sharma · Answer

Hi vadivel, You can use CellClick event of DataGridView to capture the current column and row Index. Below is a demonstration: private void DGV_ CellClick (object sender, DataGridViewCellEventArgs e) { MessageBox.Show("Mouse Entered- Col:" + e.ColumnIndex .ToString() + ", Row:" + e.RowIndex .ToString()); } This code will popup a message each time a cell is clicked/selected to edit with Column & Row Index. Happy Coding :) Please don't forget to accept this as answer if it helps! Thanks.

datagrid current column

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