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Sorting GridView (datasource = custom collection)

Posted on 2011-02-15
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Last Modified: 2012-05-11
I have a GridView binded to a custom collection. How can I implement GridView sorting?

The gridview displays an user log. I need to sort the gridview by clicking the gridview headings. For example: When clicking the "Attempts" header I need to sort the gridview by "Attempts" (Asc/Desc).

Please see attached code. Thanks for all help!

<asp:GridView runat="server" ID="grdLog" AutoGenerateColumns="false" OnPageIndexChanging="grdLog_PageIndexChanging" AllowSorting="true" AllowPaging="true" PageSize="50">
    <Columns>
        <asp:TemplateField HeaderText="Id">
            <ItemTemplate>
                <%# DataBinder.Eval(Container.DataItem, "Id") %>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="User">
            <ItemTemplate>
                <%# DataBinder.Eval(Container.DataItem, "User") %>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Attempts" SortExpression="Attempts">
            <ItemTemplate>
                <%# DataBinder.Eval(Container.DataItem, "Attempts") %>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>



protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        BindLog();
    }
}


protected void BindLog()
{
    LogCollection Log = LogHandler.GetLog();
    this.grdLog.DataSource = Log;
    this.grdLog.DataBind();
}


protected void grdLog_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
    this.grdLog.PageIndex = e.NewPageIndex;
    BindLog();
}

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Question by:webressurs
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1 Comment
 
LVL 16

Accepted Solution

by:
Swapnil Piparia earned 2000 total points
ID: 34895233
Hi webressurs,

Below article help you to implement sorting with custom collection in gridview.

http://www.codeproject.com/KB/webforms/Strongly_typed_collection.aspx

Thanks,
netswap
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