sorting in a datagrid

[Julia]

Hi,

I am developing a composite control, so I am writing all my code in a *.cs
file. One of the component in my composite control is a datagrid. The
datagrid is populated from a dataview by using DataBind(). The user should be
able to sort the datagrid my clicking the header of the columns. Anyone has
a sample of this? It would be really helpful for me. I only want to write c#
code to do this.

Thanks
Julia

 

[Julia]

Hi

It is working when I use AutoGenerateColumns = true; but not when I use
AutoGenerateColumns = false;.

Any ideas?

/Julia

 

[Alessandro Zifiglio]

hi Julia,
you need to attach to the SortCommand handler for your datagrid in code and
then do what you need to do in this event when sorting is enabled on the
grid. One possible mistake i can think of why you sorting is not working on
your grid is possibly because when you set autogenerate columns to false,
you are probably also trying to set a templatecolumn in the HeaderTemplate
<HeaderTemplate></HeaderTemplate> . In this case make sure you add a control
in your HeaderTemplate that can postback like a button control or a
linkbutton, imagebutton etc..
try these resources :
http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.datagrid.allowsorting.aspx

http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.datagrid.sortcommand.aspx

good luck,
Alessandro Zifiglio

 

[Riki]

If you're using BoundColumns, don't forget to set the SortExpression
property for each column.