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Gridview Sorting using attribute [Source Code]

, 30 Aug 2013 CPOL
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Sorting GridView using attribute property of GridView


Many developers who try to sort a GridView generally use the ViewState for maintaining the last position of the GridView. Here, I want to show you a new technique of doing this...

Here is my GridView code:

<asp:GridView ID="GridView1" 
runat="server" AllowSorting="true" 
        AutoGenerateColumns="False" onsorting="GridView1_Sorting" 
        CurrentSortField="employeeid" CurrentSortDirection="ASC" 
        onrowcreated="GridView1_RowCreated" AllowPaging="true" 
        CaptionAlign="Bottom" onpageindexchanging="GridView1_PageIndexChanging" 
        <asp:BoundField  DataField="EmployeeId" HeaderText="Last Name"  
              ItemStyle-Width="15%" SortExpression="EmployeeId" >
        <ItemStyle Width="15%"></ItemStyle>
        <asp:BoundField DataField="Name" 
        HeaderText="First Name"  ItemStyle-Width="15%" 
              SortExpression="Name"  >
             <ItemStyle Width="15%"></ItemStyle>
        <asp:BoundField DataField="gender" 
        HeaderText="Email" ItemStyle-Width="15%" >
            <ItemStyle Width="15%"></ItemStyle>
        <asp:TemplateField HeaderText="Change Password"  


            <asp:LinkButton ID="imgbtn1" 
            runat="server">change password</asp:LinkButton>

             <ItemStyle Width="15%"></ItemStyle>
        <asp:BoundField DataField="city" 
        HeaderText="Date created"  ItemStyle-Width="15%">
             <ItemStyle Width="15%"></ItemStyle>
        <PagerSettings Mode="NextPreviousFirstLast" />

And I sort using the attribute property of the GridView.

See here, through attribute, I am maintaining last sorted record. Suppose last I sort asc then asc and if I last sorted desc then desc. This is how it works:

private void GridView1_Sorting (GridView gridview, GridViewSortEventArgs e, 
         out SortDirection sortDirection, out string sortField)
    sortField = e.SortExpression;
    sortDirection = e.SortDirection;
    if (gridview.Attributes["CurrentSortField"] != null && 
         gridview.Attributes["CurrentSortDirection"] != null)
        if (sortField == gridview.Attributes["CurrentSortField"])
            if (gridview.Attributes["CurrentSortDirection"] == "ASC")
                sortDirection = SortDirection.Descending;
                sortDirection = SortDirection.Ascending;
        gridview.Attributes["CurrentSortField"] = sortField;
        gridview.Attributes["CurrentSortDirection"] = 
           (sortDirection == SortDirection.Ascending ? "ASC" : "DESC");

Now you will get the last sorted and filed easily and it generally shows that while developing, there is too much load on the page using the viewstate.

Code Description

In sorting, you have two options asc/desc.

Now, if you are sorting by asc, then in gridview attribute add to CurrentSortDirection= asc.

When user clicks for the second time, we get value from CurrentSortDirection asc so now do desc and add CurrentSortDirection =desc.

Simple, but very useful.

I am sure this will definitely help you. If you still did not get it, take a look at the source code.


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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Comments and Discussions

GeneralMy vote of 2 Pinmemberridoy26-Aug-13 5:28 
GeneralRe: My vote of 2 Pinmemberdholakiya ankit26-Aug-13 18:27 
GeneralRe: My vote of 2 Pinmemberdholakiya ankit26-Aug-13 22:29 
GeneralRe: My vote of 2 Pinmemberridoy27-Aug-13 2:15 
GeneralRe: My vote of 2 Pinmemberdholakiya ankit27-Aug-13 2:38 
GeneralMy vote of 3 PinmemberManikandan Sekar21-Aug-13 23:11 
GeneralRe: My vote of 3 Pinmemberdholakiya ankit22-Aug-13 19:00 
QuestionVote of 5 PinmemberLeslie K.15-Aug-13 11:27 
AnswerRe: Vote of 5 Pinmemberdholakiya ankit15-Aug-13 18:22 
welcome Smile | :)
Questiondemo Pinmemberdholakiya ankit13-Aug-13 19:49 
AnswerRe: demo PinprofessionalMaimonides13-Aug-13 23:04 
GeneralRe: demo Pinmemberdholakiya ankit13-Aug-13 23:16 
QuestionMy Vote of 3 PinmemberSruthiR13-Aug-13 19:34 
AnswerRe: My Vote of 3 Pinmemberdholakiya ankit13-Aug-13 19:36 
AnswerRe: My Vote of 3 Pinmemberdholakiya ankit14-Aug-13 0:07 
GeneralRe: My Vote of 3 PinmemberSruthiR14-Aug-13 1:55 
GeneralRe: My Vote of 3 Pinmemberdholakiya ankit14-Aug-13 2:20 
GeneralMy vote of 3 PinprofessionalAlexCode6-Aug-13 21:56 
GeneralRe: My vote of 3 Pinmemberdholakiya ankit6-Aug-13 22:04 
GeneralMy vote of 1 PinmemberMehedi Hassan Mody5-Aug-13 23:32 
GeneralRe: My vote of 1 Pinmemberdholakiya ankit5-Aug-13 23:46 
GeneralMy vote of 3 PinmemberHaBiX4-Aug-13 4:45 
GeneralRe: My vote of 3 Pinprofessionaldholakiya ankit4-Aug-13 19:12 
GeneralRe: My vote of 3 Pinmemberprakash.padariya20-Jan-14 20:18 
GeneralRe: My vote of 3 PinmemberAJD-salute3-Feb-14 16:42 

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