Question

我试图简单地根据GridView单元格中的值更改GridView中行的背景颜色。我有两个功能。第一个命中我的数据库并从数据库数据创建DataTable。然后DataTable将用作GridView的数据源。这是代码：

  Protected Sub FillMipDataGridOnReqNoSearch()
            Dim ReqNumber As String = Me.txtReqNo.Text
            Try
                Dim DbConnection As New DevConnection()
                Dim Da As New SqlDataAdapter()

                                Using DbConnection.Conn
                    DbConnection.Conn.Open()
                    Using SqlCmd As New SqlCommand()
                        With SqlCmd
                            .Connection = DbConnection.Conn
                            .CommandType = CommandType.StoredProcedure
                            .CommandText = "MyStoredProcedure"
                            .Parameters.AddWithValue("@RequestNumber", SqlDbType.NVarChar).Value = ReqNumber                         End With
                        Using Da
                            Da.SelectCommand = SqlCmd
                            Using Dt As New DataTable()
                                Da.Fill(Dt) 'populates the dataset
                                Gv_MipData.DataSource = Dt
                                Gv_MipData.DataBind()

                                'the following three lines pass the cell indeces for each dateTime cell that needs to be formatted
                                ShortenDateTimeStrings(4) 'date from cell
                                ShortenDateTimeStrings(5) 'date to cell
                                ShortenDateTimeStrings(11) 'date submitted cell
                            End Using
                        End Using
                    End Using
                End Using
            Catch ex As Exception

            End Try
        End Sub

第二个函数是GridView的{{1}}事件处理程序。这是代码：

RowDataBound

以上代码在Protected Sub Gv_MipData_DataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles Gv_MipData.DataBound If e.Row.RowType = DataControlRowType.DataRow Then Dim ApprovalStatus As String = e.Row.Cells(9).Text If ApprovalStatus = "D" Then e.Row.BackColor = Drawing.Color.Red End If End If End Sub行的FillMipDataGridOnReqNoSearch()函数中断。它捕获了这个例外：

无法将类型为“System.EventArgs”的对象强制转换为类型 'System.Web.UI.WebControls.GridViewRowEventArgs'。

我尝试将Gv_MipData.DataBind()事件处理程序中的参数e更改为RowDataBound类型，但它引发了此错误：

'Row'不是'System.EventArgs'的成员。

我知道我已经偏离了某个地方。有什么建议吗？

更新：GridView的标记

EventArgs

更改GridView格式的最佳方法是什么？

0 个答案: