Using ListView by Query in webpart

Scenario:
I wanted to display information into grid using a CAML query

Solution:
Share Point has a ListViewByQuery Control which can help.

Code:

using System;
using System.Runtime.InteropServices;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Serialization;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using Microsoft.SharePoint.WebPartPages;

namespace Training
{
    public class myWebPart:  System.Web.UI.WebControls.WebParts.WebPart
    {
        public override void RenderControl(HtmlTextWriter writer)
        {
            ListViewByQuery view = new ListViewByQuery();
            
            SPWeb currentweb = SPContext.Current.Web;
            SPList list = currentweb.Lists["Shared Documents"];
            view.List = list;
            SPQuery query = new SPQuery(view.List.DefaultView);
            query.ViewFields = "<FieldRef Name='Title'/>";
            query.Query = "<Where><Contains><FieldRef Name='Subject'/><Value Type='Text'>Sample</Value></Contains></Where>";
            view.Query = query;
            EnsureChildControls();
            view.RenderControl(writer);
            RenderChildren(writer);
        }
    }
}

Article: