SPDataQuery Example(current login user,RowDataBound)

ascx.cs

using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using Microsoft.SharePoint;
using System.Data;
namespace SampleSPDataQuery.CorporateAnnouncements
{
    public partial class CorporateAnnouncementsUserControl : UserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
                BindGridDetails();
           
        }
        public void BindGridDetails()
        {
            try
            {
                SPUser oCuser= SPContext.Current.Web.CurrentUser ; 
                using (SPSite osite = new SPSite(SPContext.Current.Site.ID))
                {
                    using (SPWeb oweb = osite.OpenWeb())
                    {
                        SPSiteDataQuery ositeDataQuery = new SPSiteDataQuery();
                        ositeDataQuery.Lists = "<Lists ServerTemplate='104'/>";
                        ositeDataQuery.Query = "<Where><Eq><FieldRef Name='user' /><Value Type='User'>" + oCuser.LoginName + "</Value></Eq></Where>";
                        ositeDataQuery.Webs = "<Webs Scope='SiteCollection' />";
                        ositeDataQuery.ViewFields = "<FieldRef Name='Title' /><FieldRef Name='ID' /><FieldRef Name='Body' /><FieldRef Name='FileRef' /><FieldRef Name='EncodedAbsUrl' /><FieldRef Name='FileDirRef' />";
                        ositeDataQuery.RowLimit = 10;
                        DataTable odt = oweb.GetSiteData(ositeDataQuery);
                        grdAnnouncements.DataSource = odt;
                        grdAnnouncements.DataBind();
                    }
                }
            }
            catch (Exception ex)
            {
                lblError.Text = ex.Message;
            }
        }
        protected void grdAnnouncements_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                Label lblFileDirRef = (Label)e.Row.FindControl("lblFileDirRef");
                Label lblItemID = (Label)e.Row.FindControl("lblItemID");
                HyperLink lnkTitle = (HyperLink)e.Row.FindControl("lnkTitle");
                lnkTitle.NavigateUrl = lnkTitle.NavigateUrl + lblFileDirRef.Text.Split('#')[1] + "/DispForm.aspx?ID=" + lblItemID.Text ;
                lblFileDirRef.Visible = false;
                lblItemID.Visible = false;
            }
        }
       
       
   
    }
}