DataGridView.CellMouseEnter 이벤트
정의
마우스 포인터가 셀 내부로 이동할 때 발생합니다.Occurs when the mouse pointer enters a cell.
public:
event System::Windows::Forms::DataGridViewCellEventHandler ^ CellMouseEnter;
public event System.Windows.Forms.DataGridViewCellEventHandler CellMouseEnter;
member this.CellMouseEnter : System.Windows.Forms.DataGridViewCellEventHandler
Public Custom Event CellMouseEnter As DataGridViewCellEventHandler
예제
다음 코드 예제는 CellMouseEnter Tic-Tac-Toe 게임 구현에서 이미지 열을 사용 하는 이벤트 처리기를 DataGridView 제어 합니다.The following code example shows a CellMouseEnter event handler in a Tic-Tac-Toe game implementation that uses image columns in a DataGridView control. 이벤트 처리기 및 표시할 도구 설명을 확인 하려면 셀 값을 사용 합니다.The event handler uses the cell value to determine the cursor and ToolTip to display.
이 코드에 표시 된 것 보다 큰 예제의의 일부인 방법: Windows Forms DataGridView 컨트롤에서 이미지 열 작업합니다.This code is part of a larger example shown in How to: Work with Image Columns in the Windows Forms DataGridView Control.
void dataGridView1_CellMouseEnter( Object^ sender, DataGridViewCellEventArgs^ e )
{
Bitmap^ markingUnderMouse = dynamic_cast<Bitmap^>(dataGridView1->Rows[ e->RowIndex ]->Cells[ e->ColumnIndex ]->Value);
if ( markingUnderMouse == blank )
{
dataGridView1->Cursor = Cursors::Default;
}
else
if ( markingUnderMouse == o || markingUnderMouse == x )
{
dataGridView1->Cursor = Cursors::No;
ToolTip(e,true);
}
}
void ToolTip( DataGridViewCellEventArgs^ e, bool showTip )
{
DataGridViewImageCell^ cell = dynamic_cast<DataGridViewImageCell^>(dataGridView1->Rows[ e->RowIndex ]->Cells[ e->ColumnIndex ]);
DataGridViewImageColumn^ imageColumn = dynamic_cast<DataGridViewImageColumn^>(dataGridView1->Columns[ cell->ColumnIndex ]);
if ( showTip )
cell->ToolTipText = imageColumn->Description;
else
{
cell->ToolTipText = String::Empty;
}
}
void dataGridView1_CellMouseLeave( Object^ sender, DataGridViewCellEventArgs^ e )
{
ToolTip( e, false );
dataGridView1->Cursor = Cursors::Default;
}
private void dataGridView1_CellMouseEnter(object sender,
DataGridViewCellEventArgs e)
{
Bitmap markingUnderMouse = (Bitmap)dataGridView1.
Rows[e.RowIndex].
Cells[e.ColumnIndex].Value;
if (markingUnderMouse == blank)
{
dataGridView1.Cursor = Cursors.Default;
}
else if (markingUnderMouse == o || markingUnderMouse == x)
{
dataGridView1.Cursor = Cursors.No;
ToolTip(e, true);
}
}
private void ToolTip(DataGridViewCellEventArgs e, bool showTip)
{
DataGridViewImageCell cell = (DataGridViewImageCell)
dataGridView1
.Rows[e.RowIndex].Cells[e.ColumnIndex];
DataGridViewImageColumn imageColumn =
(DataGridViewImageColumn)
dataGridView1.Columns[cell.ColumnIndex];
if (showTip) cell.ToolTipText = imageColumn.Description;
else { cell.ToolTipText = String.Empty; }
}
private void dataGridView1_CellMouseLeave(object sender,
DataGridViewCellEventArgs e)
{
ToolTip(e, false);
dataGridView1.Cursor = Cursors.Default;
}
Private Sub dataGridView1_CellMouseEnter(ByVal sender As Object, _
ByVal e As DataGridViewCellEventArgs) _
Handles dataGridView1.CellMouseEnter
Dim markingUnderMouse As Bitmap = _
CType(dataGridView1.Rows(e.RowIndex). _
Cells(e.ColumnIndex).Value, Bitmap)
If markingUnderMouse Is blank Then
dataGridView1.Cursor = Cursors.Default
ElseIf markingUnderMouse Is o OrElse markingUnderMouse Is x Then
dataGridView1.Cursor = Cursors.No
ToolTip(e)
End If
End Sub
Private Sub ToolTip( _
ByVal e As DataGridViewCellEventArgs)
Dim cell As DataGridViewImageCell = _
CType(dataGridView1.Rows(e.RowIndex). _
Cells(e.ColumnIndex), DataGridViewImageCell)
Dim imageColumn As DataGridViewImageColumn = _
CType(dataGridView1.Columns(cell.ColumnIndex), _
DataGridViewImageColumn)
cell.ToolTipText = imageColumn.Description
End Sub
Private Sub dataGridView1_CellMouseLeave(ByVal sender As Object, _
ByVal e As DataGridViewCellEventArgs) _
Handles dataGridView1.CellMouseLeave
dataGridView1.Cursor = Cursors.Default
End Sub
설명
이벤트를 처리 하는 방법에 대 한 자세한 내용은 참조 하세요. 이벤트 처리 및 발생합니다.For more information about how to handle events, see Handling and Raising Events.