有的时候想取不是编辑状态的值,这个时候通常会使用模板列中放置TextBox通过e.Item.FindControl取值,有的网友问为什么取不到?这要看你前台的列怎么写的了,下面分别写出四种情况和这四种情况下面的取值方式:
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<asp:DataGrid id="DataGrid1" runat="server" AutoGenerateColumns="False" AllowPaging="True">
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<Columns>
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<asp:BoundColumn DataField="vName" HeaderText="姓名0"></asp:BoundColumn>
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<asp:TemplateColumn HeaderText="姓名1">
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<ItemTemplate>
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姓名
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</ItemTemplate>
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</asp:TemplateColumn>
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<asp:TemplateColumn HeaderText="姓名2">
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<ItemTemplate>
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<%#DataBinder.Eval(Container.DataItem,"vName")%>
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</ItemTemplate>
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</asp:TemplateColumn>
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<asp:TemplateColumn HeaderText="姓名3">
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<ItemTemplate>
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<asp:Label ID="name" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"vName")%>'>
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</asp:Label>
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</ItemTemplate>
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</asp:TemplateColumn>
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<asp:ButtonColumn Text="删除" ButtonType="PushButton" CommandName="del"></asp:ButtonColumn>
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</Columns>
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</asp:DataGrid>
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列出了4种大家可能遇到的列:
(1)绑定列
(2)模板列中直接放静态的字符串
(3)模板列中直接放绑定的字符串
(4)模板列中通过Label放绑定的字符串
下面说明在按下了删除按钮以后的四种取值的方式:
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if(e.CommandName=="del")
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{
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Response.Write(DataGrid1.Columns[0].HeaderText+":"+e.Item.Cells[0].Text+"<br>");
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Response.Write(DataGrid1.Columns[1].HeaderText+":"+e.Item.Cells[1].Text.Trim()+"<br>");
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Response.Write(DataGrid1.Columns[2].HeaderText+":"+((DataBoundLiteralControl)e.Item.Cells[2].Controls[0]).Text.Trim()+"<br>");
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Response.Write(DataGrid1.Columns[3].HeaderText+":"+((Label)e.Item.Cells[3].FindControl("name")).Text+"<br>");
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}
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(1)第一种用绑定列的方式可以直接通过Cells[i].Text取
(2)第二种方式也直接可以取,但是讨厌的vs.net总是会在前台把列中的内容换行,所以这里还需要对输出的东西进行去除首尾的空格
(3)第三种方式不能直接通过Cells[i].Text取到值,可以通过上面给出的方法来取,同样需要去除首尾的空格
(4)第四种方式也是最简单的方式,当然你可以直接写e.Item.FindControl("name")