关于DataGrid绑定数据后的修改
我在一个DataGrid中绑定了两个列(用户ID   \   用户姓名),一个摸版列(职务),并且填加了一个按钮列(编辑\更新\取消),希望是在点击 "编辑 "的时候,将 "职务 "这列变成一个Dropdownlist以便用户修改,但是现在的问题是:当我点击 "编辑 "的时候,虽然出现了Dropdownlist,但是之前的那两个绑定的列也自动变成了TextBox,我希望的效果是只有 "职务 "那列变成Dropdownlist,之前的列要保持原样就可以了,应该如何实现哦??

代码如下:


<asp:DataGrid   id= "UserGrid "   runat= "server "   Width= "548px "   BorderColor= "#DEDFDE "   BorderStyle= "None "
BorderWidth= "1px "   BackColor= "White "   CellPadding= "4 "   GridLines= "Vertical "   ForeColor= "Black "
AutoGenerateColumns= "False "   Height= "164px ">
<FooterStyle   BackColor= "#CCCC99 "> </FooterStyle>
<SelectedItemStyle   Font-Bold= "True "   ForeColor= "White "   BackColor= "#CE5D5A "> </SelectedItemStyle>
<AlternatingItemStyle   BackColor= "White "> </AlternatingItemStyle>
<ItemStyle   BackColor= "#F7F7DE "> </ItemStyle>
<HeaderStyle   Font-Bold= "True "   ForeColor= "White "   BackColor= "#6B696B "> </HeaderStyle>
<Columns>
<asp:BoundColumn   DataField= "uid "   HeaderText= "用户ID ">
<ItemStyle   Font-Size= "12pt "> </ItemStyle>
</asp:BoundColumn>
<asp:BoundColumn   DataField= "uname "   HeaderText= "用户姓名 ">
<ItemStyle   Font-Size= "12pt "> </ItemStyle>
</asp:BoundColumn>
<asp:TemplateColumn   HeaderText= "职务 ">
<ItemTemplate>
<asp:Label   id=positionLabel   runat= "server "   Text= ' <%#   DataBinder.Eval(Container,   "DataItem.dname ")   %> '>
</asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList   ID= "position "   runat= "server "   Width= "100% "   AutoPostBack= "True "> </asp:DropDownList>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:EditCommandColumn   ButtonType= "LinkButton "   UpdateText= "更新 "   CancelText= "取消 "   EditText= "编辑 "> </asp:EditCommandColumn>
</Columns>
<PagerStyle   HorizontalAlign= "Right "   ForeColor= "Black "   BackColor= "#F7F7DE "   Mode= "NumericPages "> </PagerStyle>
</asp:DataGrid>


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我觉得最主要的是列的那几行

<Columns>
<asp:BoundColumn   DataField= "uid "   HeaderText= "用户ID ">
<ItemStyle   Font-Size= "12pt "> </ItemStyle>
</asp:BoundColumn>
<asp:BoundColumn   DataField= "uname "   HeaderText= "用户姓名 ">
<ItemStyle   Font-Size= "12pt "> </ItemStyle>