Add programmatically DataViewWebPart to your site.

SPWeb WssSite = SPControl.GetContextWeb(Context);
SPList list = WssSite.Lists["--List Name--"];
WssSite.AllowUnsafeUpdates=true;
DataViewWebPart DVWebPart = new DataViewWebPart();

DVWebPart.ZoneID = "ZoneForMenu";
DVWebPart.Width="130";
DVWebPart.Title="DataView Web Part";
DVWebPart.FrameType= FrameType.None;
DVWebPart.ListName = list.ID.ToString("B").ToUpper();
DVWebPart.Description = list.ID.ToString("B").ToUpper();

//Optional:
//DVWebPart.Xsl="xsl code here";
//DVWebPart.DataQuery="DataQuery Code Here";

SPWebPartCollection webPartCollection = WssSite.GetWebPartCollection(Request.ServerVariables["URL"] , Storage.Shared);
int WebPartCount=0;

if (webPartCollection != null)
{
webPartCollection.Web.AllowUnsafeUpdates=true;
webPartCollection.Add(DVWebPart);

}
else
{
//Response.Write("webPartCollection is null ");
}

WssSite.AllowUnsafeUpdates=false;

//Cleanup:

WssSite.Dispose();
WssSite = null;
webPartCollection=null;
DVWebPart.Dispose();
DVWebPart=null;

//refresh the page to see the new DataViewWebPart.
Response.Redirect(Request.ServerVariables["URL"]);