How to pass Current Logged User value into SharePoint Created By Column while insertion into SharePoint List.

SPSecurity.RunWithElevatedPrivileges(delegate()

            {

            SPWeb currentWeb = SPContext.Current.Web;   

            SPList lst = currentWeb.Lists["Sample"];

                SPListItemCollection myColl = lst.Items;

                SPListItem item = myColl.Add();

                item["Title"] = txtTitle.Text;   

                SPFieldUserValue value = new SPFieldUserValue(currentWeb, currentWeb.CurrentUser.ID, currentWeb.CurrentUser.LoginName);

                item["Author"] = value.LookupId;

                item.Update();

            });

How to Bind Data to GridView or SPGridView Containing Odd Number ItemID from a SharePoint List

https://docs.google.com/open?id=0B5SB1JNvS1xqN1JMSVlyU3Bib0k

How to Bind Data to GridView or SPGridView Containing Even Number ItemID from a SharePoint List

https://docs.google.com/open?id=0B5SB1JNvS1xqVmtkaWpObHNHdVk

How to check if the Logged user is in Multiple Groups....!

try

            {

                writer.Write("<Table width='100%'>");

                writer.Write("<Tr>");

                writer.Write("<Td Align='Center'>");

                writer.Write("<Strong>");

                writer.Write("How to check if the current logged user is in Multiple Groups...!");

                writer.Write("</Strong>");

                writer.Write("<Td>");

                writer.Write("</Tr>");

                bool strCurrentUser = false;

                SPSecurity.RunWithElevatedPrivileges(delegate()

                {

                    SPWeb currentWeb = SPContext.Current.Web;

                    SPGroupCollection grp = currentWeb.Groups;

                    foreach (SPGroup group in grp)

                    {

                        if (group.ID == 5)

                        {

                            strCurrentUser = true;

                        }

                    }

                    if (strCurrentUser == false)

                    {

                        writer.Write("<Tr>");

                        writer.Write("<Td>");

                        writer.Write("<Strong>");

                        writer.Write("Current user is not an Administrator...!");

                        writer.Write("</Strong>");

                        writer.Write("<Td>");

                        writer.Write("</Tr>");

                    }

                    else

                    {

                        writer.Write("<Tr>");

                        writer.Write("<Td>");

                        writer.Write("<Strong>");

                        writer.Write("Current User is an Administrator");

                        writer.Write("</Strong>");

                        writer.Write("<Td>");

                        writer.Write("</Tr>");

                    }

                });

                writer.Write("</Table>");

            }

            catch (Exception ex)

            {

                writer.Write(ex.ToString());

            }

Binding Data from SharePoint Links List to SpGridView without a single line of loop.

ascx

<table width="100%" cellpadding="0" cellspacing="0"> <tr> <td>Binding Data from SharePoint Links List to SpGridView without a Single line of Loop.</td> </tr> <tr> <td> <SharePoint:SPGridView ID="sgvLinks" runat="server" AutoGenerateColumns="false" DataKeyNames="ID"> <Columns> <asp:BoundField HeaderText="Link Name" DataField="URL" /> </Columns> </SharePoint:SPGridView> </td> </tr> </table>

Ascx.cs

using System; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using Microsoft.SharePoint; using System.Security; namespace DLLWebPart.DLLWebPart {     public partial class DLLWebPartUserControl : UserControl     {         protected void Page_Load(object sender, EventArgs e)         {                 sgvLinks.RowDataBound += new GridViewRowEventHandler(sgvLinks_RowDataBound);                 SPWeb currentWeb = SPContext.Current.Web;                 SPList LinksList = currentWeb.Lists["Links"];                 SPQuery sQuery = new SPQuery();                 sQuery.Query = "<OrderBy><FieldRef Name='ID' Ascending='False' /></OrderBy>";                 sQuery.ViewFields = "<FieldRef Name='ID' /><FieldRef Name='URL' />";                 SPListItemCollection myColl = LinksList.GetItems(sQuery);                 if (myColl.Count > 0)                 {                     if (!IsPostBack)                     {                         sgvLinks.DataSource = myColl.GetDataTable();                         sgvLinks.DataBind();                     }                 }         }         string strItemID = "";         void sgvLinks_RowDataBound(object sender, GridViewRowEventArgs e)         {             try             {                 if (e.Row.RowType == DataControlRowType.DataRow)                 {                     SPSecurity.RunWithElevatedPrivileges(delegate()                     {                         strItemID = sgvLinks.DataKeys[e.Row.RowIndex].Value.ToString();                         SPWeb currentWeb = SPContext.Current.Web;                         SPList lst = currentWeb.Lists["Links"];                         SPQuery sQuery = new SPQuery();                         sQuery.Query = "<Where><Eq><FieldRef Name='ID' /><Value Type='Counter'>"+strItemID+"</Value></Eq></Where>";                         sQuery.ViewFields = "<FieldRef Name='ID' /><FieldRef Name='URL' />";                         SPListItemCollection myColl = lst.GetItems(sQuery);                         if (myColl.Count > 0)                         {                             SPListItem item = myColl[0];                             SPFieldUrlValue URL = new SPFieldUrlValue(item["URL"].ToString());                             e.Row.Cells[0].Text = "<a href='"+URL.Url+"'>"+URL.Description+"</a>";                                                 }                     });                 }             }             catch (Exception ex)             {                 Response.Write(ex.ToString());             }         }     } }