Change column display name

Question

Hi,
How can one change the display name of a column.
For example I have columns C_ProjectID which when display in view should appear "Project ID". I tried to play with FieldRef but somehow it doesn't reflect the change on page.
What I am missing here? Below is the schema from Sharepoint designer.
Thanks in advance.
Regards,
Abdul
                <ViewFields>
                    <FieldRef Name="TISImpact_x0020__x0028_Yes_x0020" DisplayName="Impact (Y/N)"/>
                    <FieldRef Name="C_Title" DisplayName="Title"/>
                    <FieldRef Name="C_ProjectID" DisplayName="Project ID"/>
                    <FieldRef Name="TBP"/>
                </ViewFields>

Answer 1

Hi,
To change the column name, you can simply select the field name from the ListSettings page and change its title /column name to the desired name. Note:the internal name of the column will still remain the same.
Secondly, you can also do this progrmatically too :
using (SPSite site = new SPSite("http://site"))
using (SPWeb web = site.OpenWeb())
web.AllowUnsafeUpdates = true;
SPList sampleList = web.Lists["ListName"];
// Imp Step
SPField title = sampleList.Fields.GetFieldByInternalName("C_ProjectID");
title.Title = "Custom";
title.Update(true);
sampleList.Update();
web.AllowUnsafeUpdates = false;
You can change the display name via Sharepoint Designer bu clicking on the list -> list settings -> click on "Edit list columns" under cutomizations > select the column and right click and select rename.
Hope this helps
Regards,
Priyanka