我如何...如何在GridViews SelectedIndexChanged事件上找到TemplateField控件 [英] How do I...How to find TemplateField controls on GridViews SelectedIndexChanged event

问题描述

我有一个 gridview ，因为我在 TemplateField中有一个 asp超链接控件但我无法在 SelectedIndexChanged 事件中找到该控件。我想获取超链接的文本。



我使用 CommandField 来选择行。 />


CS代码 -

 GridViewRow row = gridViewShipments.Rows [gridViewShipments.SelectedIndex]; 
 HyperLink link =（HyperLink）row.FindControl（  poNum）;  //  此处链接始终为空。 
 

ASPX代码 -

 <   asp：TemplateField  >  
 <   ItemTemplate  >  
 <   asp：HyperLink     ID   =  poNum   文本  ='  <％ Eval（  poNum）％> '    NavigateUrl   = ＃    runat   =  server >  <   / asp：HyperLink  >  
 <   / ItemTemplate  > ;  
 <   / asp：TemplateField  >  
 

任何想法为什么它总是空？

解决方案

< blockquote>请阅读本文以了解模板在ASP.NET中的工作方式......

了解ASP.NET模板 [ ^ ]

I have a gridview, in that I have a asp hyperlink control inside TemplateField but I am not able to find the control in SelectedIndexChanged event. I want to get the text of the hyperlink.

I am using CommandField for selecting the row.

CS Code -

GridViewRow row = gridViewShipments.Rows[gridViewShipments.SelectedIndex];
HyperLink link = (HyperLink)row.FindControl("poNum"); // here link is always null.

ASPX Code -

<asp:TemplateField>
        <ItemTemplate>
            <asp:HyperLink ID="poNum" Text='<% Eval("poNum") %>' NavigateUrl="#" runat="server"></asp:HyperLink>
        </ItemTemplate>
</asp:TemplateField>

Any idea why its always null ?

解决方案

Please rad this article to understand how templates are working in ASP.NET...
Understanding ASP.NET Templates[^]

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