Linkbutton inside Repeater for paging ASP.Net

Question

I'm doing a webpage with a search that brings a lot of information from MSSQL. What I did is a stored procedure that return only the page to be seen on the website.

Right now I'm working on the paging as I need to show something similar than google. If you are at page 1 they show first 10 pages and if you are at page 19 they show since page 9 to 28.

I think the best option to show the page numbers is using a linkbutton inside a repeater. The problem that I have now is that I do not know the best way to take the page number at postback.

Doing a quick sample I assigned an ArrayList to repeater.datasource:

  <asp:Repeater ID="Repeater2" runat="server">
    <ItemTemplate>
            <asp:LinkButton ID="LinkButton1" runat="server" CommandArgument="<%# Container.DataItem %>"><%# Container.DataItem %></asp:LinkButton>
    </ItemTemplate>
  </asp:Repeater>
  <asp:LinkButton ID="LinkButton2" runat="server" CommandArgument="4654">Test #1</asp:LinkButton>

At my Default.aspx.cs file I have the next code

    protected void Page_Load(object sender, EventArgs e)
    {
        if (this.IsPostBack)
        {
            string x = LinkButton2.CommandArgument;
            //string y = LinkButton1.CommandArgument;
//I know this line will not work since the Linkbutton1 is inside the Repeater.
            }

What Shall I do to make it works?

Does anyone has a better solution for this paging?

Thank you

Jerry

Answer 1

You're looking for the ItemCommand event:

  <asp:Repeater ID="Repeater1" OnItemCommand="ItemCommand" runat="server">
    <ItemTemplate>
      <asp:LinkButton CommandName="ButtonEvent" CommandArgument="<%# Container.DataItem %>" Text="<%#Container.DataItem %>" runat="server"></asp:LinkButton>
    </ItemTemplate>
  </asp:Repeater>

Code behind:

protected void Page_Load(object sender, EventArgs e)
{
  if (!Page.IsPostBack)
  {
    Repeater1.DataSource = Enumerable.Range(1, 10);
    Repeater1.DataBind();
  }
}

protected void ItemCommand(Object Sender, RepeaterCommandEventArgs e)
{
  Response.Write("The no. " + ((LinkButton)e.CommandSource).Text + " button was clicked!");
}

... but are you really sure you need the LinkButton? A plain HTML anchor tag might work just as fine, and it's less fuzz. :)