如何在datagridview复选框上放置一个值？

Question

My question is about.I have a datagridview in which i have fourth column as checkbox.

When clicking checkbox i want to get checkbox value in code behind. Can anybody help?

Answer 1

If you want the results when the checkbox value changes immediately, you'll need to implement a two step process.

First you'll need to generate the DataGridView's CurrentCellDirtyStateChange event, Check if the DataGridView's CurrentCell is both not Nothing and if the Index is 3 (since it is your fourth column), and finally commit the DataGridView.

Next you'll need to generate the DataGridView's CellContentClick event. You'd need to check if the ColumnIndex is 3 and if so then get the cell's value.

Here is an example:

Private Sub DataGridView1_CellContentClick(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
    If e.RowIndex <> -1 AndAlso e.ColumnIndex = 3 Then
        MessageBox.Show(DataGridView1.Rows.Item(e.RowIndex).Cells(e.ColumnIndex).Value.ToString)
    End If
End Sub

Private Sub DataGridView1_CurrentCellDirtyStateChanged(sender As Object, e As EventArgs) Handles DataGridView1.CurrentCellDirtyStateChanged
    If DataGridView1.CurrentCell IsNot Nothing AndAlso DataGridView1.CurrentCell.ColumnIndex = 3 Then
        DataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit)
    End If
End Sub