如何通过DataGridViewRow中的列名引用DataGri

如何通过DataGridViewRow中的列名引用DataGri

本文介绍了如何通过DataGridViewRow中的列名引用DataGridViewCell?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在填充 DataGridView ,如下面的代码所示。但是,尽管每个创建的行都与在其中创建列的父 DataGridView 关联,但是我无法按列名引用该行中的单元格。

I'm populating a DataGridView as shown in the code below. However while each created row is associated with the parent DataGridView, in which the columns are created, I cannot reference cells in the row by column name.

是否可以通过列名引用?我宁愿避免使用基于整数的索引。

Is there a way for me to reference by column name? I would rather avoid using the integer based index.

EDIT :请注意,DataGridView的列已创建,并使用Visual正确命名。 Studio设计人员。

EDIT: note that the columns of the DataGridView has been created and correctly named using the Visual Studio designer.

Private Sub SetServiceOrders()
    Dim Row As DataGridViewRow = Nothing
    Dim RowValues As IServiceOrderDataGridViewRowValues = Nothing

    Me.ServiceOrdersDataGridView.Rows.Clear()
    If Not _ServiceOrders Is Nothing AndAlso _ServiceOrders.Count > 0 Then
        For Each ServiceOrder As ServiceOrder In _ServiceOrders.Values
            RowValues = ServiceOrder
            Row = New DataGridViewRow()
            Me.ServiceOrdersDataGridView.Rows.Add(Row)
            With Row
                'This Fails: "Specified argument was out of the range of valid values."
                .Cells("StatusImageColumn").Value = My.Resources.BulletGreen24
                .Cells("OrderDateColumn").Value = RowValues.Created
                .Cells("CreatedByColumn").Value = RowValues.OwnerName
            End With
            Me.ServiceOrdersDataGridView.Rows.Add()
        Next
    End If
End Sub


推荐答案

您无法引用 DataGridViewCell 列名,因为未正确创建 DataGridViewRow

You are not able to reference the DataGridViewCell by column name because the DataGridViewRow is not correctly created:

  Row = New DataGridViewRow() '=> new datagridview row with no knowledge about its DataGridView Parent
  Me.ServiceOrdersDataGridView.Rows.Add(Row) '



似乎没有。应改为:

 Private Sub SetServiceOrders()
        Dim Row As DataGridViewRow = Nothing
        Dim RowValues As IServiceOrderDataGridViewRowValues = Nothing
        Dim rowIndex As Integer 'index of the row

        Me.ServiceOrdersDataGridView.Rows.Clear()
        If Not _ServiceOrders Is Nothing AndAlso _ServiceOrders.Count > 0 Then
            For Each ServiceOrder As ServiceOrder In _ServiceOrders.Values
                RowValues = ServiceOrder

                '/////Create a new row and get its index/////
                rowIndex = Me.ServiceOrdersDataGridView.Rows.Add()

               '//////Get a reference to the new row ///////
                Row = Me.ServiceOrdersDataGridView.Rows(rowIndex)

                With Row
                    'This won't fail since the columns exist
                    .Cells("StatusImageColumn").Value = My.Resources.BulletGreen24
                    .Cells("OrderDateColumn").Value = RowValues.Created
                    .Cells("CreatedByColumn").Value = RowValues.OwnerName
                End With

                '//// I think this line is not required
                ' Me.ServiceOrdersDataGridView.Rows.Add()
            Next
        End If
    End Sub

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08-29 04:24