in sharepoint 2010 Dataview Webpart Create Trim Function for Multiline Texbox

in sharepoint 2010 Dataview Webpart Create Trim Function for Multiline Texbox in xslt expresion.

1	<xsl:value-of select="concat(substring(@Description,1,180),'...')/">

2

3	</xsl:value-of>

programmatically create custom list in sharepoint ?

 

01	namespace customl.Customlist

02

{

03	[ToolboxItemAttribute(false)]

04	public class Customlist : WebPart

05

{

06	Button btn;

07	protected override void CreateChildControls()

08

{

09	base.CreateChildControls();

10	btn = new Button();

11	btn.Text = "show";

12	btn.Click += new EventHandler(btn_Click);

13	Controls.Add(btn);

14

}

15

16	void btn_Click(object sender, EventArgs e)

17

{

18

try

19

{

20	SPWeb web = SPContext.Current.Web;

21	web.AllowUnsafeUpdates = true;

22	web.Lists.Add("checkCustomlist", "The new custom list", SPListTemplateType.GenericList);

23	web.AllowUnsafeUpdates = false;

24

}

25	catch (Exception ex)

26

{

27	Context.Response.Output.Write("Error (btn_Click): " + ex.Message.ToString());

28

}

29

30

}

31	protected override void Render(HtmlTextWriter writer)

32

{

33	base.Render(writer);

34

}

35

}

36

}