Question

Passing two parameters in a repeater control c#

Asked by: Sirdots

How can i pass the filename as a parameter in the repeater control here so that i can use it in another page.

Thanks.


<asp:Repeater
        id="rptFiles"
        DataSourceID="srcFiles"
        Runat="server">
        <HeaderTemplate>
        <ul class="fileList">
        </HeaderTemplate>
        <ItemTemplate>
        <li>
        <asp:HyperLink
            id="lnkFile"
            Text='<%#Eval("FileName")%>'
            NavigateUrl='<%#Eval("Id", "~/FileHandlerLarge.ashx?id={0}")%>'
            Runat="server" />
        </li>
        </ItemTemplate>
        <FooterTemplate>
        </ul>
        </FooterTemplate>    
    </asp:Repeater>

                                  
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Asked On
2009-11-03 at 09:20:02ID24867919
Topic

Programming for ASP.NET

Participating Experts
1
Points
250
Comments
8

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Answers

 

by: guru_samiPosted on 2009-11-03 at 10:13:14ID: 25731751

Couple ways:
1:
NavigateUrl='<%# GetUrl(Eval("FileName"))%>'

code-behind:
public string GetUrl(string filename)
{
   string url =  "~/FileHandlerLarge.ashx?id=" + filename;
   return url;
}

2: In the Repeater ItemDataBound event handler find the Hyperlink and set its NavigateUrl programatically:

protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    RepeaterItem item = e.Item;
    if ((item.ItemType == ListItemType.Item) || (item.ItemType == ListItemType.AlternatingItem)) {
        HyperLink hl= (Label)item.HyperLink("lnkFile");
        if (hl!= null) {
            hl.NavigateUrl = "yourUrl";
        }
    }
}

 

by: SirdotsPosted on 2009-11-03 at 10:35:06ID: 25731946

Thanks Guru_sami.

I want to pass two parameters at the same time not one. I want to pass the id and the filename.

<asp:HyperLink
            id="lnkFile"
            Text='<%#Eval("FileName")%>'
            NavigateUrl='<%#Eval("Id", "~/FileHandlerLarge.ashx?id={0}")%>'
            Runat="server" />

 

by: guru_samiPosted on 2009-11-03 at 10:46:17ID: 25732054

then pass two values to GetUrl(Eval("FileName"), Eval("ID")) function and modify your function accordingly.
I haven't tested it to try and see if it works.

 

by: SirdotsPosted on 2009-11-03 at 13:17:22ID: 25733780

Thanks. Am very close.
I have this in my html
<asp:HyperLink
            id="lnkFile"
            Text='<%#Eval("FileName")%>'
            NavigateUrl='<%GetUrl(Eval("Id"),Eval("FileName"))%>'
            Runat="server" />

Then got stuck in my codebehind

 public string GetUrl(string Id, string FileName)
    {
        string url = "~FileHandlerLarge.ashx?id=" + Id & "File=" + FileName;    //? how do i join filename to this
        return url;
    }

How do i join filename together with Id in one line above? Two parameters..
 

 

by: SirdotsPosted on 2009-11-03 at 13:25:39ID: 25733909

just tried this

public string GetUrl(string Id, string FileName)
    {
        string url = "~FileHandlerLarge.ashx?id="+Id+"&File="+FileName;  
        return url;
    }

I do not have the values of Eval("Id") and Eval("FileName") when i place my mouse on the links

 

by: guru_samiPosted on 2009-11-03 at 13:37:30ID: 25734058

Ok I have a test code below and it works for me:

<div>
        <asp:Repeater
        id="rptFiles"
        DataSourceID="srcFiles"
        Runat="server" onitemdatabound="rptFiles_ItemDataBound">
        <HeaderTemplate>
        <ul class="fileList">
        </HeaderTemplate>
        <ItemTemplate>
        <li>
        <asp:HyperLink
            id="lnkFile"
            Text='<%#Eval("Username")%>'
            NavigateUrl='<%# GetUrl(Eval("UserId"), Eval("Username"))%>'
            Runat="server" />
        </li>
        </ItemTemplate>
        <FooterTemplate>
        </ul>
        </FooterTemplate>    
    </asp:Repeater>
        <asp:SqlDataSource ID="srcFiles" runat="server" 
            ConnectionString="<%$ ConnectionStrings:TestDBConnectionString %>" 
            SelectCommand="SELECT * FROM [tblUser]"></asp:SqlDataSource>
    </div> 
.cs
 public string GetUrl(object username,object id)
    {
        string url = "~/Default.aspx?id=" + id.ToString()  + "&username=" + username.ToString();
        return url;
    }

                                              
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by: SirdotsPosted on 2009-11-03 at 13:46:38ID: 25734160

Thanks guru_sami:. It works like Magic.
Have a great day.

 

by: SirdotsPosted on 2009-11-03 at 13:46:57ID: 31649519

Great work

20120131-EE-VQP-002

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