DataGridView.RowEnter 事件

定义

在某一行接收到输入焦点但变成当前行之前发生。Occurs when a row receives input focus but before it becomes the current row.

public:
 event System::Windows::Forms::DataGridViewCellEventHandler ^ RowEnter;
public event System.Windows.Forms.DataGridViewCellEventHandler RowEnter;
member this.RowEnter : System.Windows.Forms.DataGridViewCellEventHandler 
Public Custom Event RowEnter As DataGridViewCellEventHandler 

示例

下面的代码示例演示如何处理此事件,以更改当前行中单元格的 @no__t 属性。The following code example illustrates how to handle this event to change the BackColor property of the cells in the current row. 在此示例中,背景色设置为 RowEnter 事件,然后重置为 RowLeave 事件上的 @no__t。In this example, the background color is set in the RowEnter event, then reset to Empty on the RowLeave event. 若要运行此示例,请将代码粘贴到包含名为 @no__t 的 @no__t 0 的窗体中,并确保所有事件都与它们的事件处理程序相关联。To run this example, paste the code into a form that contains a DataGridView named dataGridView1, and ensure that all events are associated with their event handlers.

private void dataGridView1_RowEnter(object sender, 
    DataGridViewCellEventArgs e)
{
    for (int i = 0; i < dataGridView1.Rows[e.RowIndex].Cells.Count; i++)
    {
        dataGridView1[i, e.RowIndex].Style.BackColor = Color.Yellow;
    }
}

private void dataGridView1_RowLeave(object sender, 
    DataGridViewCellEventArgs e)
{
    for (int i = 0; i < dataGridView1.Rows[e.RowIndex].Cells.Count; i++)
    {
        dataGridView1[i, e.RowIndex].Style.BackColor = Color.Empty;
    }
}
Private Sub dataGridView1_RowEnter(ByVal sender As Object, _
    ByVal e As DataGridViewCellEventArgs) _
    Handles dataGridView1.RowEnter

    Dim i As Integer
    For i = 0 To dataGridView1.Rows(e.RowIndex).Cells.Count - 1
        dataGridView1(i, e.RowIndex).Style _
            .BackColor = Color.Yellow
    Next i

End Sub

Private Sub dataGridView1_RowLeave(ByVal sender As Object, _
    ByVal e As DataGridViewCellEventArgs) _
    Handles dataGridView1.RowLeave

    Dim i As Integer
    For i = 0 To dataGridView1.Rows(e.RowIndex).Cells.Count - 1
        dataGridView1(i, e.RowIndex).Style _
            .BackColor = Color.Empty
    Next i

End Sub

注解

此事件在以下情况下发生:最初加载 @no__t 0 时,以及当用户选择当前行以外的其他行时。This event occurs when the DataGridView is initially loaded, as well as when the user selects a row other than the current row.

此事件发生在更新 CurrentRow 属性之前。This event occurs before the CurrentRow property is updated. 若要检索新输入行的索引,请使用事件处理程序中的 DataGridViewCellEventArgs.RowIndex 属性。To retrieve the index of the newly-entered row, use the DataGridViewCellEventArgs.RowIndex property within the event handler.

有关如何处理事件的详细信息,请参阅处理和引发事件For more information about how to handle events, see Handling and Raising Events.

适用于

另请参阅