Read SharePoint List data and display in a GridView control

I have developed a custom web part which reads data from SharePoint List named "Projects" and display in a GridView control. Find below the code of the custom web part:

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using Microsoft.SharePoint; 
using Microsoft.SharePoint.WebControls; 
using System.Data; 


namespace ReadListDataWebPart 
{ 
  public class CustomListDataWebPart : WebPart 
  { 
    protected override void CreateChildControls() 
    { 
      SPWeb web = SPControl.GetContextWeb(Context); 
      GridView gview = new GridView();DataTable dt = new DataTable(); 
      DataRow dr; 
      DataColumn dc; 


      foreach (SPList list in web.Lists) 
      { 
        if (list.Title == "Projects") 
        { 
          if (list.ItemCount > 0) 
          { 
            dc = new DataColumn("Project",Type.GetType("System.String")); 
            dt.Columns.Add(dc); 


            dc = new DataColumn("Client", Type.GetType("System.String")); 
            dt.Columns.Add(dc); 


            foreach (SPListItem item in list.Items) 
            { 
              dr = dt.NewRow(); 
              dr["Project"] = item["Project"];dr["Client"] = item["Client"]; 
              dt.Rows.Add(dr); 
            } 
          } 
          gview.DataSource = dt; 
          gview.DataBind(); 
        } 
      } 
      Controls.Add(gview); 
    } 
  } 
}