从C＃背后的代码绑定gridview中的动态列模板字段

Question

I have stored proc using pivot(dynamic query) that will return dynamic columns. Like

ItemId   A         B              c
------   --        --            --
1        A_Value1   B_Value1     C_Value1
16       A_Value2   B_Value2     C_Value2

Here A,B,C are dynamic columns . Sometime A only occur or A,B,C,D,E, etc because its pivot table.
Then, I will bind that result in gridview.

My requirement is, I want to bind that result gridview's template field with link button. Because I want to do rowcommand event for each column.
My command argument should be like this for column C

CommandArgument = ColumnName+","+ItemID_Value;

ie
CommandArgument = "A,16"; How to do this . pls help.

Answer 1

You have already answer :)

<asp:TemplateField HeaderText="A">
   <ItemTemplate>
       <asp:LinkButton runat="server" ID="lnkModify" Text="Edit" CommandName="MyCommand">
       </asp:LinkButton>
   </ItemTemplate>
</asp:TemplateField>

And OnRowDataBound (or directly in aspx)

MyClass item = e.Row.DataItem as MyClass;
LinkButton lnk = (LinkButton)e.Row.FindControl("lnkModify");
lnk.CommandArgument = "A," + item.Id; 

EDIT: sorry i read now that they are dinamic columns. Two solutions:

1. First of all you need to have always all columns. Then you can write code as above but you have dynamic HeaderText and CommandArgument can read HeaderText (or index of relative columns). Then you can use Visible on LinkButton if a column is not present.

2. if you don't know columns number, you can build your data structure and the use AutoGenerateColumns="true" to bind data.

If you don't need pagination, you can use nested Repeater (one for columns ABCDE, one for rows).

Hope it helps.