Click here to Skip to main content
Click here to Skip to main content

Two way sorting in DataGrid using Bound Columns

By , 19 Aug 2004
Rate this:
Please Sign up or sign in to vote.

Introduction

In this small code snippet, I will show how to perform two way sorting in DataGrid using bound columns. Remember, there can be numerous ways you can sort the items in the DataGrid and this is just one of them.

Adding Bound Columns:

First, add some columns in your DataGrid using Property Builder. Since this is an intermediate level article, you should know how to perform this. Once you add the bound columns, give the DataGrid a data source and populate it with some data.

Sorting DataGrid both ways:

Okay, up till now, the DataGrid should be populated with some data. Now in the Properties window of the DataGrid, set AllowSorting = "true". Okay, now sorting is enabled and all you need now is the actual code that sorts the DataGrid.

DataGrid Sorting Code:

Whenever the Columns header is clicked, SortCommand event is fired. So, place the code below in the SortCommand event handler:

private void Sort_DataGrid(object source, 
  System.Web.UI.WebControls.DataGridSortCommandEventArgs e)
{
    // Never use Queries like this always use Stored procedures
    SqlCommand myCommand = new SqlCommand("SELECT * FROM Categories", 
                                                         myConnection);
    myCommand.CommandType = CommandType.Text;
    SqlDataAdapter myAdapter = new SqlDataAdapter(myCommand);
    DataSet ds = new DataSet();
    myAdapter.Fill(ds,"Categories");
    DataView dv = new DataView(ds.Tables["Categories"]);
    if( (numberDiv%2) == 0 )
        dv.Sort = e.SortExpression + " " + "ASC";
    else
        dv.Sort = e.SortExpression + " " + "DESC";
    numberDiv++;
    myDataGrid.DataSource = dv;
    myDataGrid.DataBind();
}

In the above code, "numberDiv" is the public static Int32 variable which keeps count of the even and odd number of mouse clicks on the header. The heart of this example is the DataView object which has a SortExpression property, it represents the name of the column clicked.

And lastly, just assign the DataSource to the DataView and bind the grid on the page.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

azamsharp
Web Developer
United States United States
I am the founder of knowledge base website, HighOnCoding, GridViewGuy, RefactorCode.com and ScreencastADay.com.
 
HighOnCoding is a website which will get you high legally with useful information. There are tons of articles, videos and podcasts hosted on HighOnCoding.
 
HighOnCoding.com www.HighOnCoding.com
 

My Blog:

Blog

 

Buy my iPhone app ABC Pop

Comments and Discussions

 
GeneralDatagrid sorting after importing Excel sheet Pinmembermkalantri18-Apr-11 10:39 
GeneralAscending and Descending Sorting with DataGrid Columns PinmemberJohn Stagich19-Sep-08 6:46 
Generalthanks PinmemberMember #36902453-Jan-07 6:47 
Generalstatic member variable PinmemberAshley van Gerven20-Aug-04 21:44 
GeneralRe: static member variable Pinmemberazamsharp21-Aug-04 6:23 
GeneralRe: static member variable PinmemberChristian Calderon15-Feb-05 4:00 
GeneralRe: static member variable PinmemberL3go1as17-Oct-05 17:00 
QuestionRe: static member variable Pinmemberpraveen.aru12-Jan-07 5:54 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Mobile
Web04 | 2.8.140415.2 | Last Updated 20 Aug 2004
Article Copyright 2004 by azamsharp
Everything else Copyright © CodeProject, 1999-2014
Terms of Use
Layout: fixed | fluid