DataGridViewRowCancelEventArgs 类

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

为 DataGridView 的 UserDeletingRow 事件提供数据。

public ref class DataGridViewRowCancelEventArgs : System::ComponentModel::CancelEventArgs

public class DataGridViewRowCancelEventArgs : System.ComponentModel.CancelEventArgs

type DataGridViewRowCancelEventArgs = class
    inherit CancelEventArgs

Public Class DataGridViewRowCancelEventArgs
Inherits CancelEventArgs

继承

Object

EventArgs

CancelEventArgs

DataGridViewRowCancelEventArgs

示例

以下代码示例演示了此类型的用法。 此示例是如何：在 DataGridView 控件中实现虚拟模式 Windows 窗体中提供的更大示例的一部分。

void dataGridView1_UserDeletingRow( Object^ /*sender*/,
    System::Windows::Forms::DataGridViewRowCancelEventArgs^ e )
{
   if ( e->Row->Index < this->customers->Count )
   {
      
      // If the user has deleted an existing row, remove the 
      // corresponding Customer object from the data store.
      this->customers->RemoveAt( e->Row->Index );
   }

   if ( e->Row->Index == this->rowInEdit )
   {
      
      // If the user has deleted a newly created row, release
      // the corresponding Customer object. 
      this->rowInEdit = -1;
      this->customerInEdit = nullptr;
   }
}

private void dataGridView1_UserDeletingRow(object sender,
    System.Windows.Forms.DataGridViewRowCancelEventArgs e)
{
    if (e.Row.Index < this.customers.Count)
    {
        // If the user has deleted an existing row, remove the 
        // corresponding Customer object from the data store.
        this.customers.RemoveAt(e.Row.Index);
    }

    if (e.Row.Index == this.rowInEdit)
    {
        // If the user has deleted a newly created row, release
        // the corresponding Customer object. 
        this.rowInEdit = -1;
        this.customerInEdit = null;
    }
}

Private Sub dataGridView1_UserDeletingRow(ByVal sender As Object, _
    ByVal e As System.Windows.Forms.DataGridViewRowCancelEventArgs) _
    Handles dataGridView1.UserDeletingRow

    If e.Row.Index < Me.customers.Count Then

        ' If the user has deleted an existing row, remove the 
        ' corresponding Customer object from the data store.
        Me.customers.RemoveAt(e.Row.Index)

    End If

    If e.Row.Index = Me.rowInEdit Then

        ' If the user has deleted a newly created row, release
        ' the corresponding Customer object. 
        Me.rowInEdit = -1
        Me.customerInEdit = Nothing

    End If

End Sub

注解

若要取消删除事件处理程序中的 UserDeletingRow 行，请将 Cancel 属性设置为 true。

有关如何处理事件的详细信息，请参阅 处理和引发事件。

构造函数

DataGridViewRowCancelEventArgs(DataGridViewRow)

初始化 DataGridViewRowCancelEventArgs 类的新实例。

属性

Cancel	获取或设置指示是否应取消事件的值。 (继承自 CancelEventArgs)
Row	获取用户要删除的行。

方法

Equals(Object)	确定指定对象是否等于当前对象。 (继承自 Object)
GetHashCode()	作为默认哈希函数。 (继承自 Object)
GetType()	获取当前实例的 Type。 (继承自 Object)
MemberwiseClone()	创建当前 Object 的浅表副本。 (继承自 Object)
ToString()	返回表示当前对象的字符串。 (继承自 Object)

另请参阅

• DataGridView
• UserDeletingRow
• Cancel
• DataGridViewRowCancelEventHandler