Question

我有devExpress ASPxGridView。我有一些绑定列（与数据源相关联）和一些未绑定列。我有2个未绑定的列，我有下拉和文本字段。所以我有5个绑定列和2个未绑定列。我希望代码隐藏在文件后面的所有这7列值。我可以得到5列有界但我无法得到未绑定的列值。

这是网格代码：

<dxwgv:ASPxGridView ID="gvList" runat="server" AutoGenerateColumns="False" KeyFieldName="IAD"
Width="100%">
<Columns>
<%-- <dxwgv:GridViewDataColumn Caption="Sr. No." VisibleIndex="0" Width="30px">
    <dataitemtemplate>
        <%#Container.VisibleIndex + 1%>
    </dataitemtemplate>
    <Settings AllowDragDrop="False" />
    <CellStyle VerticalAlign="Top">
    </CellStyle>
</dxwgv:GridViewDataColumn>--%>

<dxwgv:GridViewDataColumn Caption="Sr. No." FieldName="Row" VisibleIndex="1"  >
    <CellStyle VerticalAlign="Top" >
    </CellStyle>
</dxwgv:GridViewDataColumn>                  


<dxwgv:GridViewDataTextColumn Caption="Product" FieldName="Product" VisibleIndex="1" >
    <CellStyle VerticalAlign="Top" >
    </CellStyle>
    <Settings FilterMode="DisplayText"  AutoFilterCondition="Contains" SortMode="Value"  />                                        
</dxwgv:GridViewDataTextColumn>

<dxwgv:GridViewDataTextColumn Caption="UIC" FieldName="UIC" VisibleIndex="1" >
    <CellStyle VerticalAlign="Top" >
    </CellStyle>
    <Settings FilterMode="DisplayText"  AutoFilterCondition="Contains" SortMode="Value"  />                                        
</dxwgv:GridViewDataTextColumn>


<dxwgv:GridViewDataTextColumn Caption="USN" FieldName="USN" VisibleIndex="1" >
    <CellStyle VerticalAlign="Top" >
    </CellStyle>
    <Settings FilterMode="DisplayText"  AutoFilterCondition="Contains" SortMode="Value"  />                                        
</dxwgv:GridViewDataTextColumn>



<dxwgv:GridViewDataTextColumn Caption="Allocated To" FieldName="AllocatedTo" VisibleIndex="1" >
    <CellStyle VerticalAlign="Top" >
    </CellStyle>
    <Settings FilterMode="DisplayText"  AutoFilterCondition="Contains" SortMode="Value"  />                                        
</dxwgv:GridViewDataTextColumn>   

<dxwgv:GridViewDataColumn Caption="Condition">
    <dataitemtemplate>
        <dxe:ASPxComboBox ID="ddCondition" runat="server" EnableClientSideAPI="True"
       SelectedIndex="0" ValueType="System.String">
        <Items>
            <dxe:ListEditItem Text="--Select--" Value="0" />
            <dxe:ListEditItem Text="Working" Value="working" />
            <dxe:ListEditItem Text="Not Working" Value="not-working" />
        </Items>
        <ClientSideEvents SelectedIndexChanged="function(s, e){validateCondition(s)}" />
    </dxe:ASPxComboBox>


    </dataitemtemplate>

    <Settings AllowDragDrop="False" />
    <CellStyle VerticalAlign="Middle">
    </CellStyle>
</dxwgv:GridViewDataColumn>

<dxwgv:GridViewDataColumn Caption="Remarks">
    <dataitemtemplate>
        <dxe:ASPxTextBox ID="remarks" runat="server" EnableClientSideAPI="True" />
    </dataitemtemplate>

    <Settings AllowDragDrop="False" />
    <CellStyle VerticalAlign="Middle">
    </CellStyle>
</dxwgv:GridViewDataColumn>


<dxwgv:GridViewCommandColumn Caption="Send" ShowSelectCheckbox="True">
</dxwgv:GridViewCommandColumn>

</Columns>

我这里有两个未绑定的列，一个带有下拉ID：“ddCondition”和一个textfield：“remarks”

我可以获取所有绑定列的值，但我想要循环中的下拉值和文本字段的值，这里是代码背后的代码：

For i As Integer = 0 To 9
        ProductStr = gvList.GetRowValues(i, "Product")
        Dim dd As DropDownList = CType(gvList.FindRowTemplateControl(i, "ddCondition"), DropDownList)
        Dim str As String = dd.SelectedValue.ToString
    Next i

我在

上得到NullReferenceException

Dim str As String = dd.SelectedValue.ToString

任何人都可以指导我如何获得下拉和文本字段的值。

以下是我的页面的屏幕截图：

enter image description here

谢谢..

Answer 1

For i As Integer = 0 To 9
    ProductStr = gvList.GetRowValues(i, "Product")
    DropDownList ddCondition = (DropDownList)gvList.Rows[i].FindControl("ddCondition");
    string Condition = ddCondition.SelectedValue.ToString();
Next i

很抱歉，我添加的两行是在C＃中 - 这些日子我的VB太生锈了。

Answer 2

我已通过以下代码解决了这个问题：

Private Sub GetSelectedValues()
        Dim ProductStr As String
        For i As Integer = 0 To 9
            ProductStr = gvList.GetRowValues(i, "Product")
            Dim dd As ASPxComboBox = CType(gvList.FindRowCellTemplateControl(i, Nothing, "ddCondition"), ASPxComboBox)
            Dim str As String = dd.SelectedItem.Value.ToString
            If str <> "0" Then
                Literal1.Text = str
            End If
        Next i
        BindGridView()
End Sub

ASPxGridView在vb.net中的代码后面获取未绑定的列值

2 个答案: