DataGridView.CurrentCellDirtyStateChanged DataGridView.CurrentCellDirtyStateChanged DataGridView.CurrentCellDirtyStateChanged DataGridView.CurrentCellDirtyStateChanged Event

定義

當儲存格狀態變更是與儲存格內容變更有關時發生。Occurs when the state of a cell changes in relation to a change in its contents.

public:
 event EventHandler ^ CurrentCellDirtyStateChanged;
public event EventHandler CurrentCellDirtyStateChanged;
member this.CurrentCellDirtyStateChanged : EventHandler 
Public Custom Event CurrentCellDirtyStateChanged As EventHandler 

範例

下列程式碼範例示範如何處理CurrentCellDirtyStateChanged事件。The following code example demonstrates how to handle the CurrentCellDirtyStateChanged event. 在此範例中,事件處理常式會CommitEdit呼叫方法來CellValueChanged引發事件,並判斷的目前值DataGridViewCheckBoxCellIn this example, the event handler calls the CommitEdit method to raise the CellValueChanged event and determine the current value of a DataGridViewCheckBoxCell. 這個程式碼範例是如何:停用 Windows Forms DataGridView 控制項中按鈕資料行的按鈕。This code example is part of a larger example provided in How to: Disable Buttons in a Button Column in the Windows Forms DataGridView Control.

// This event handler manually raises the CellValueChanged event
// by calling the CommitEdit method.
void dataGridView1_CurrentCellDirtyStateChanged(object sender,
    EventArgs e)
{
    if (dataGridView1.IsCurrentCellDirty)
    {
        dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
    }
}

// If a check box cell is clicked, this event handler disables  
// or enables the button in the same row as the clicked cell.
public void dataGridView1_CellValueChanged(object sender,
    DataGridViewCellEventArgs e)
{
    if (dataGridView1.Columns[e.ColumnIndex].Name == "CheckBoxes")
    {
        DataGridViewDisableButtonCell buttonCell =
            (DataGridViewDisableButtonCell)dataGridView1.
            Rows[e.RowIndex].Cells["Buttons"];

        DataGridViewCheckBoxCell checkCell =
            (DataGridViewCheckBoxCell)dataGridView1.
            Rows[e.RowIndex].Cells["CheckBoxes"];
        buttonCell.Enabled = !(Boolean)checkCell.Value;

        dataGridView1.Invalidate();
    }
}
' This event handler manually raises the CellValueChanged event
' by calling the CommitEdit method.
Sub dataGridView1_CurrentCellDirtyStateChanged( _
    ByVal sender As Object, ByVal e As EventArgs) _
    Handles dataGridView1.CurrentCellDirtyStateChanged

    If dataGridView1.IsCurrentCellDirty Then
        dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit)
    End If
End Sub

' If a check box cell is clicked, this event handler disables  
' or enables the button in the same row as the clicked cell.
Public Sub dataGridView1_CellValueChanged(ByVal sender As Object, _
    ByVal e As DataGridViewCellEventArgs) _
    Handles dataGridView1.CellValueChanged

    If dataGridView1.Columns(e.ColumnIndex).Name = "CheckBoxes" Then
        Dim buttonCell As DataGridViewDisableButtonCell = _
            CType(dataGridView1.Rows(e.RowIndex).Cells("Buttons"), _
            DataGridViewDisableButtonCell)

        Dim checkCell As DataGridViewCheckBoxCell = _
            CType(dataGridView1.Rows(e.RowIndex).Cells("CheckBoxes"), _
            DataGridViewCheckBoxCell)
        buttonCell.Enabled = Not CType(checkCell.Value, [Boolean])

        dataGridView1.Invalidate()
    End If
End Sub

備註

如果資料格的內容已變更,但尚未儲存變更,則會將其標示為已修改。A cell is marked as modified if its contents have changed but the change has not been saved.

當儲存格已編輯,但變更尚未認可至資料快取,或取消編輯作業時,通常就會發生此事件。This event typically occurs when a cell has been edited but the change has not been committed to the data cache, or when an edit operation is canceled.

如需如何處理事件的詳細資訊,請參閱處理和引發事件For more information about how to handle events, see Handling and Raising Events.

適用於

另請參閱