Question

我有一个表（myTable），我想从中删除行但不删除它们。我使用myTable.ActiveFlag将它们过期。因此，当我从myTable“删除”一行时，我想运行UPDATE myTable SET ActiveFlag = 0 WHERE id = @rowId。

使用带有Gridcontrol的DevExpress GridView执行此操作的最佳方法是什么？

我目前：

Private Sub gcMyTableMaintenance_EmbeddedNavigator_ButtonClick(ByVal sender As System.Object, ByVal e As DevExpress.XtraEditors.NavigatorButtonClickEventArgs) Handles gcMyTableMaintenance.EmbeddedNavigator.ButtonClick
    If e.Button.ButtonType = DevExpress.XtraEditors.NavigatorButtonType.Remove Then
        //'TODO: Remove Row
    End If
    e.Handled = True
End Sub

我在考虑在这里运行存储过程或SQL语句，但是有更简单或更合适的方法吗？

以下是我最终代码的基本版本：

Private Sub gcMyTableMaintenance_EmbeddedNavigator_ButtonClick(ByVal sender As System.Object, ByVal e As DevExpress.XtraEditors.NavigatorButtonClickEventArgs) Handles gcMyTableMaintenance.EmbeddedNavigator.ButtonClick
    If e.Button.ButtonType = DevExpress.XtraEditors.NavigatorButtonType.Remove Then
        Dim iMyTableId As Int32 = 0

        iMyTableId = gvMyTableMaintenance.GetFocusedRowCellValue("id")

        Using conn As New SqlConnection(MyConnectionString)
            Using lCmd As New SqlCommand()
                Try
                    lCmd.Connection = conn
                    lCmd.CommandType = CommandType.StoredProcedure
                    lCmd.CommandText = "ExpireFromMyTable"
                    lCmd.Parameters.AddWithValue("@myTableId", iMyTableId)
                    conn.Open()
                    lCmd.ExecuteNonQuery()
                    conn.Close()

                    //'Need to delete from 
                    gvMyTableMaintenance.DeleteRow(gvMyTableMaintenance.FocusedRowHandle)
                Catch ex As Exception
                    //'Handle Exception
                End Try
            End Using
        End Using
    End If
    e.Handled = True
End Sub

Answer 1

从我的角度来看，您选择了正确的方法来实现此功能。

Answer 2

以下是我最终代码的基本版本：

Private Sub gcMyTableMaintenance_EmbeddedNavigator_ButtonClick(ByVal sender As System.Object, ByVal e As DevExpress.XtraEditors.NavigatorButtonClickEventArgs) Handles gcMyTableMaintenance.EmbeddedNavigator.ButtonClick
    If e.Button.ButtonType = DevExpress.XtraEditors.NavigatorButtonType.Remove Then
        Dim iMyTableId As Int32 = 0

        iMyTableId = gvMyTableMaintenance.GetFocusedRowCellValue("id")

        Using conn As New SqlConnection(MyConnectionString)
            Using lCmd As New SqlCommand()
                Try
                    lCmd.Connection = conn
                    lCmd.CommandType = CommandType.StoredProcedure
                    lCmd.CommandText = "ExpireFromMyTable"
                    lCmd.Parameters.AddWithValue("@myTableId", iMyTableId)
                    conn.Open()
                    lCmd.ExecuteNonQuery()
                    conn.Close()

                    //'Need to delete from 
                    gvMyTableMaintenance.DeleteRow(gvMyTableMaintenance.FocusedRowHandle)
                Catch ex As Exception
                    //'Handle Exception
                End Try
            End Using
        End Using
    End If
    e.Handled = True
End Sub

如何覆盖DevExpress GridView删除

2 个答案: