如何：依據 Windows Form DataGridView 控制項儲存格的變更執行自訂動作

  • 發行項

控制項 DataGridView 有許多事件可用來偵測儲存格狀態 DataGridView 的變更。 最常使用的兩個是 CellValueChanged 和 CellStateChanged 事件。

偵測 DataGridView 儲存格值的變更

  • 撰寫 事件的處理常式 CellValueChanged 。

    private void dataGridView1_CellValueChanged(object sender,
    DataGridViewCellEventArgs e)
{
    string msg = String.Format(
        "Cell at row {0}, column {1} value changed",
        e.RowIndex, e.ColumnIndex);
    MessageBox.Show(msg, "Cell Value Changed");
}

    Private Sub dataGridView1_CellValueChanged(ByVal sender As Object, _
    ByVal e As DataGridViewCellEventArgs) _
    Handles dataGridView1.CellValueChanged

    Dim msg As String = String.Format( _
        "Cell at row {0}, column {1} value changed", _
        e.RowIndex, e.ColumnIndex)
    MessageBox.Show(msg, "Cell Value Changed")

End Sub

偵測 DataGridView 儲存格狀態的變更

  • 撰寫 事件的處理常式 CellStateChanged 。

    private void dataGridView1_CellStateChanged(object sender,
    DataGridViewCellStateChangedEventArgs e)
{
    DataGridViewElementStates state = e.StateChanged;
    string msg = String.Format("Row {0}, Column {1}, {2}",
        e.Cell.RowIndex, e.Cell.ColumnIndex, e.StateChanged);
    MessageBox.Show(msg, "Cell State Changed");
}

    Private Sub dataGridView1_CellStateChanged(ByVal sender As Object, _
    ByVal e As DataGridViewCellStateChangedEventArgs) _
    Handles dataGridView1.CellStateChanged

    Dim state As DataGridViewElementStates = e.StateChanged
    Dim msg As String = String.Format( _
        "Row {0}, Column {1}, {2}", _
        e.Cell.RowIndex, e.Cell.ColumnIndex, e.StateChanged)
    MessageBox.Show(msg, "Cell State Changed")

End Sub

編譯程式碼

這個範例需要：

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