如何以编程方式添加 TemplateField [英] How to add TemplateField programmatically

问题描述

请考虑这个代码:

<asp:TemplateField>
     <ItemTemplate>
         <asp:LinkButton runat="server" ID="linkmodel" Text='<%#Eval("MenuItem") %>' 
                         CommandName='<%#Eval("CommandName") %>'
                         OnCommand="linkmodel_Click" 
                         OnClientClick="return confirm('Are You Sure')">
         </asp:LinkButton>
     </ItemTemplate>
</asp:TemplateField>

如何使用 C# 以编程方式添加此列?

How to add this column programmatically using C#?

谢谢

推荐答案

这可能有助于开始:

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    { 
        var linkField = new TemplateField();
        linkField.ItemTemplate = new LinkColumn();
        GridView1.Columns.Add(linkField);
    }
}


class LinkColumn : ITemplate
{
    public void InstantiateIn(System.Web.UI.Control container)
    {
        LinkButton link = new LinkButton();
        link.ID = "linkmodel";
        container.Controls.Add(link);
    }
}

但是:

虽然您可以动态地向数据绑定控件添加字段，但它是强烈建议静态声明字段然后显示或隐藏，视情况而定.静态声明所有字段减少父数据绑定控件的视图状态的大小.

Although you can dynamically add fields to a data-bound control, it is strongly recommended that fields be statically declared and then shown or hidden, as appropriate. Statically declaring all your fields reduces the size of the view state for the parent data-bound control.

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.templatefield.templatefield.aspx

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