How to Make Validation in DataGridView Cells in c#

Question

Hello sir Well i have DataGridView in windows Application i want that when i m puting a string value in Cells then given me Long Error. is it possible to make validation like they dont accept string values in Cells only accept int and decimal values if it is possible then let me know Thanks in Advance

Kirtan Patel · Answer

Friend  here is Code For Validating Integer Values Check Do you like this answer  if it helps you :) write code like below in CelEndEdit Event of DataGridView Here I have Coded it For Checking Column 2 Cells DataChecking You can Change it to validate any Column :) private void dataGridView1_CellEndEdit( object sender DataGridViewCellEventArgs e) { int RowIndex = e.RowIndex; int columnIndex = e.ColumnIndex; if (e.ColumnIndex == 1) { bool validation = true ; if (dataGridView1.Rows[RowIndex].Cells[columnIndex].Value != null && dataGridView1.Rows[RowIndex].Cells[columnIndex].Value.ToString().Trim() !=  ) { string DataToValidate = dataGridView1.Rows[RowIndex].Cells[columnIndex].Value.ToString(); foreach ( char c in DataToValidate) { if (! char .IsDigit(c)) { validation = false ; break ; } } if (validation == false ) { dataGridView1.Rows[RowIndex].Cells[columnIndex].ErrorText = You Can Only Enter Number here  ; dataGridView1.Rows[RowIndex].Cells[columnIndex].Value =  ; } } } }