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Programmatically Set NavigateURL in a GridView

Posted on 2007-03-21
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Last Modified: 2011-09-20
I have a grid view in a UserControl, say uc1.ascx. One of the columns is a TemplateField and contains a hyperlink. Something like:

                        <asp:TemplateField HeaderText="ID" InsertVisible="False" SortExpression="RequestId">
                            <ItemTemplate>
                                <asp:HyperLink ID="HyperLink1" runat="server" Text='<%# Bind("RequestId") %>'></asp:HyperLink>
                            </ItemTemplate>
                        </asp:TemplateField>

Now, I place this UserControl in a page whose path is, say, http://myhost/dir1/default.aspx.

In the codebehind file of the user control, I need to get the URL of the aspx page that contains the usercontrol, make some modification to it, and assign that to the NavigateURL of the Hyperlink in the template field.

The NavigateURL will be something like:
http://myhost/dir1/update.aspx?id=<%# Bind("Id") %>'>

any suggestions?
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Question by:IUAATech
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Expert Comment

by:mmarinov
ID: 18764231
One way is to use RowDatabound event.
Another way is to use something like this:

http://myhost/<%=this.Page.Request.FilePath%>?id=<%# Bind("Id") %>'>
I'm not sure for the FilePath property but if it is not check the Request's properties

Regards
Martin
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Author Comment

by:IUAATech
ID: 18764292
can you show me how to do this using RowDataBound event?

and FIlePath doesn't quite work. I need everything in the URL except the file name since default.aspx needs to be replaced with update.aspx. Any way to do string manipulation?
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Accepted Solution

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mmarinov earned 250 total points
ID: 18764409
Write in the html code like this

<asp:HyperLink ID="HyperLink1" runat="server" Text='<%# Bind("RequestId") %>' NavigateURL='http://myhost/dir1'></asp:HyperLink>

in your RowDatabound event do this:


void GridView_RowDataBound(Object sender, GridViewRowEventArgs e)
  {
       
    if(e.Row.RowType == DataControlRowType.DataRow)
    {
      //You must replace objec here with the type of the object that you are binding to the grid view
      Object item = e.Row.DataItem;

      HyperLink hl = (HyperLink)e.Row.FindControl("HyperLink1");
       hl.NavigateUrl += System.IO.Path.GetFileName(this.Page.Request.Url.AbsoluteUri) +
                    "?id=" + Bind("Id");
      //also you must get the Id from the item and not as string
    }

Martin
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Author Comment

by:IUAATech
ID: 18765706
got it. thanks.
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