删除列后 Gridview 丢失 ItemTemplate

发布于 2024-07-30 11:04:23 字数 1090 浏览 10 评论 0原文

我正在尝试将数据表绑定到网格视图，其中我删除了后面代码中的一些自动生成的列。

我有两个模板列，似乎当我在代码后面更改 gridview 并删除非模板列时，模板会释放其中的控件。

使用以下示例，“标题 A”将继续可见，但在删除位于索引 2 及以上的任何列后，“标题 B”将消失。我正在网格的代码隐藏中创建列，作为报告工具的一部分。如果我不删除这些列，那么似乎就没有问题。

<asp:GridView ID="DataGrid1" runat="server" AutoGenerateColumns="false" AllowPaging="True" PageSize="10" GridLines="Horizontal">
    <Columns>
        <asp:TemplateField HeaderText="Header A"  >
            <ItemTemplate >
                  Text A
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField>
            <HeaderTemplate>
                      Header B
            </HeaderTemplate>
            <ItemTemplate>
                      Text B
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

For i = 2 To DataGrid1.Columns.Count - 1
      DataGrid1.Columns.RemoveAt(2)
Next

编辑

因此，根据我的阅读，这似乎是更改网格时出现的问题。有谁知道重新初始化模板列或再次设置它们的好解决方法，以便在删除非模板列时，模板也不会被删除？

原文

I'm trying to bind a datatable to a gridview where I've removed some of the autogenerated columns in the code behind.

I've got two template columns and it seems that when I alter the gridview in code behind and remove the non-templated columns that the templates loose the controls that are in them.

Using the following as a sample, "Header A" will continue to be visible but "Header B" will dissapear after removing any columsn that are located at index 2 and above. I'm creating columns in my codebehind for the grid as a part of a reporting tool. If I don't remove the columns then there doesn't seem to be an issue.

<asp:GridView ID="DataGrid1" runat="server" AutoGenerateColumns="false" AllowPaging="True" PageSize="10" GridLines="Horizontal">
    <Columns>
        <asp:TemplateField HeaderText="Header A"  >
            <ItemTemplate >
                  Text A
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField>
            <HeaderTemplate>
                      Header B
            </HeaderTemplate>
            <ItemTemplate>
                      Text B
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

For i = 2 To DataGrid1.Columns.Count - 1
      DataGrid1.Columns.RemoveAt(2)
Next

EDIT

So from what I've read this seems to be a problem that occurs when the grid is altered. Does anyone know of a good workaround to re-initialize the template columns or set them up again so that when the non-template columns are removed that hte templates don't get removed as well?

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暮倦 2024-08-06 11:04:23

你需要GridView有ViewState吗？尝试关闭 ViewState。

<asp:GridView ID="DataGrid1" runat="server" AutoGenerateColumns="false" AllowPaging="True" PageSize="10" GridLines="Horizontal" EnableViewState="false">

Do you need the GridView to have ViewState? Try turning off ViewState.

<asp:GridView ID="DataGrid1" runat="server" AutoGenerateColumns="false" AllowPaging="True" PageSize="10" GridLines="Horizontal" EnableViewState="false">

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