如何通过DataGridViewRow中的列名引用DataGridViewCell？ [英] How to reference a DataGridViewCell by column name in a DataGridViewRow?

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) '

我相信：
行Me.ServiceOrdersDataGridView.Rows.Add（Row）会将行
与DataGridView关联起来。

I would believe that the line: Me.ServiceOrdersDataGridView.Rows.Add(Row) would associate the row with the DataGridView.

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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