自定义任意 TemplateField 定义

发布于 2024-08-26 02:59:17 字数 1184 浏览 6 评论 0原文

我正在动态构建 GridView，并且我想预先定义要按需包含的 TemplateFields。因此，我想做的是拥有一个声明性文件，用于定义不同模板如何查找特定列。例如：

<asp:TemplateField>
        <HeaderTemplate>
            this is a text column
        </HeaderTemplate>
        <ItemTemplate>
            data goes here
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox Text="databindhere" />
        </EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
        <HeaderTemplate>
            this is a bool column
        </HeaderTemplate>
        <ItemTemplate>
            if(true) "yes" else "no"
        </ItemTemplate>
        <EditItemTemplate>
            <asp:CheckBox Checked="databindme" />
        </EditItemTemplate>
</asp:TemplateField>

因此，如果我的查询有一个文本和两个布尔字段，我可以根据需要将适当的 TemplateFields 推送到 Columns 属性中。（我希望我在这里说得通）

那么，我将如何为上述定义创建声明性文件？然后，我如何以编程方式引用这些定义？

好的，最有效的方法是子类化 System.Web.UI.WebControls.TemplateField，但是当我这样做时，我似乎无法使用 <%@ Register %> 来使用该对象。指示。如果可以的话，我会使用新的衍生工具创建一些 UserControl，然后根据需要将它们 LoadControl() 和 Add() 到网格的列中。

有什么想法吗？

原文

I'm building a GridView on the fly, and I'd like to pre-define the TemplateFields to be included ondemand. So, what I'd like to do is have a declarative file that defines how the different templates look for a specific column. Like:

<asp:TemplateField>
        <HeaderTemplate>
            this is a text column
        </HeaderTemplate>
        <ItemTemplate>
            data goes here
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox Text="databindhere" />
        </EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
        <HeaderTemplate>
            this is a bool column
        </HeaderTemplate>
        <ItemTemplate>
            if(true) "yes" else "no"
        </ItemTemplate>
        <EditItemTemplate>
            <asp:CheckBox Checked="databindme" />
        </EditItemTemplate>
</asp:TemplateField>

So, if my query had a text and two bool fields, I could push the appropriate TemplateFields in the the Columns property as needed. (I hope I'm making sense here)

So, how would I go about creating declarative files for the above definitions? And then, how would I reference those definitions programmatically?

Ok, what would work best is to subclass System.Web.UI.WebControls.TemplateField, but when I do that, I can't seem to use the object with the <%@ Register %> directive. If I could, I'd create a handful of UserControls with the new derivative, and then LoadControl() and Add() them to the Columns of my grid as needed.

Any ideas?

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