How to validate the Data Grid view
  • how to validate the data grid view if the cell value is nullorempty or nullorwhitespace it the cell value should be 0 as same as my data grid view only accept the numeric value
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  • Hi select Datagridview and then go to CellValidating Event and put below code its just accept number.

    decimal varDecimal;

    // we will not check the very new row is not any point in validating its initial value.
    if (DataGridView1.Rows[e.RowIndex].IsNewRow) { return true; }
    if (!decimal.TryParse(e.FormattedValue.ToString(),
    out varDecimal) || varDecimal < 0)
    e.Cancel = true;
    MessageBox.Show("Kindly insert numeric value", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
    return false;
    return true;
    - See more at:

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