Question

I have web part which displays items from any view. I’m displaying it through:

protected override void RenderContents(HtmlTextWriter writer)
{
String res = "";
SPView def = list.Views[_ViewName];
res = def.RenderAsHtml();
writer.write(res);
}

How can I display ungrouped items if they grouped in view?

This is how it should look:

Answer 1

You need to get the view’s Query property, then remove the <GroupBy> element. In most cases you’re probably OK doing this with a regular expression

SPView def = list.Views[_ViewName];
string query = def.Query;
query = Regex.Replace(query, @"\<GroupBy.+?\</GroupBy\>", "", RegexOptions.IgnoreCase);
def.Query = query;
string res = def.RenderAsHtml();
writer.Write(res);

but in more complicated cases you might need to use a proper XML manipulator.

What I’m unsure of here is whether RenderAsHtml requires you to call Update on the view in order for the changes to be reflected. Obviously you don’t want to do that because it’ll affect the view permanently.