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Two way sorting in DataGrid using Bound Columns

, 19 Aug 2004
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Two way sorting in DataGrid using bound columns.


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", 
    myCommand.CommandType = CommandType.Text;
    SqlDataAdapter myAdapter = new SqlDataAdapter(myCommand);
    DataSet ds = new DataSet();
    DataView dv = new DataView(ds.Tables["Categories"]);
    if( (numberDiv%2) == 0 )
        dv.Sort = e.SortExpression + " " + "ASC";
        dv.Sort = e.SortExpression + " " + "DESC";
    myDataGrid.DataSource = dv;

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.


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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 

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