not workin ......btw forgot to mention one thing..i have binded the Datagrids datasource to a linq query var q = from c in xdoc.Descendants("Africa") orderby ((string)c.Element(cb1.Text).Value) ascending select new { Country = c.Element("Country").Value, *= c.Element(cb1.Text).Value }; xdg1.DataSource = q.ToArray(); wot i want is the second column name to be the combobox text .....so wot should i write in the second select statement (the one marked with *) ......plz help

but not the first time when the user clicks it....

oh its workin ...sorry i had put that code above the datasource ...................thanks ..............one more thing .........why is the contents in the datagrid not updating the next time i change the combo-box content and clickin the button ......only the column name is changing ...the contents r not.........???

The grid contents are changing for me every time I change the combobox selection and then click the button.

Joe

don't know why its not showin up here..can u plz upload ur project ..lemme crosscheck ......

one more thing ..........how to set the columns size am getting dynamically to Autofit the contents size .........

sorry ..not able to understand it ..........anyways ..this is what i want ........i have taken this code from the documentation ... what i want to know is what to write in the first line ...coz i am getting the column title from the Linq query ...........thanks ...is there anyway to do the above in C#

one more thing......how to write the column name created at runtime in XAML ..for eg in C# we write xdg1.DefaultFieldLayout.Fields[0] ........how to do this in XAML .......