Create custom view in sharepoint list

	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 FSDocsXREFFilter
	{
	[Guid("497b816f-628c-4bdb-bca0-395d011a9572")]
	public class XREFWebPart : System.Web.UI.WebControls.WebParts.WebPart
	{
	Label lblTitle;
	TextBox txtSearch;
	Button btnFilter;
	string strDefaultView = string.Empty;
	public XREFWebPart()
	{
	}
	protected override void CreateChildControls()
	{
	string strURL = Page.Request.Url.ToString();
	strDefaultView = strURL.Substring(strURL.LastIndexOf('/') + 1);
	base.CreateChildControls();
	lblTitle = new Label();
	txtSearch = new TextBox();
	btnFilter = new Button();
	btnFilter.Text = "Search";
	lblTitle.Text = "XREF Documents";
	btnFilter.Click += new EventHandler(btnFilterClick);
	this.Controls.Add(lblTitle);
	this.Controls.Add(new LiteralControl(" "));
	this.Controls.Add(txtSearch);
	this.Controls.Add(new LiteralControl(" "));
	this.Controls.Add(btnFilter);
	string oquery = "";
	try
	{
	SPContext.Current.Web.AllowUnsafeUpdates = true;
	if (txtSearch.Text.Trim() != "")
	{
	oquery = "";
	oquery += "" + txtSearch.Text.Trim() + "";
	oquery += "";
	}
	string strDocLibName = "Approved Documents";
	SPSecurity.RunWithElevatedPrivileges(delegate()
	{
	using (SPSite site = new SPSite(SPContext.Current.Web.Url))
	{
	using (SPWeb web = site.OpenWeb())
	{
	web.AllowUnsafeUpdates = true;
	string s = SPContext.Current.Web.Url;
	SPDocumentLibrary oDocumentLibrary = (SPDocumentLibrary)web.Lists[strDocLibName];
	SPViewCollection viewColl = oDocumentLibrary.Views;
	viewColl.List.BreakRoleInheritance(true);
	}
	}
	});
	}
	catch (Exception ex)
	{
	throw ex;
	}
	finally
	{
	SPContext.Current.Web.AllowUnsafeUpdates = false;
	txtSearch.Text = "";
	}
	}
	protected void btnFilterClick(object sender, EventArgs e)
	{
	if (txtSearch.Text.Trim() == "")
	{
	try
	{
	SPContext.Current.Web.AllowUnsafeUpdates = true;
	string strDocLibName = "Approved Documents";
	SPSecurity.RunWithElevatedPrivileges(delegate()
	{
	using (SPSite site = new SPSite(SPContext.Current.Web.Url))
	{
	using (SPWeb web = site.OpenWeb())
	{
	web.AllowUnsafeUpdates = true;
	SPDocumentLibrary oDocumentLibrary = (SPDocumentLibrary)web.Lists[strDocLibName];
	SPViewCollection viewColl = oDocumentLibrary.Views;
	viewColl.List.BreakRoleInheritance(true);
	Page.Response.Redirect(strDefaultView, false);
	}
	}
	});
	}
	catch (Exception ex)
	{
	throw ex;
	}
	finally
	{
	SPContext.Current.Web.AllowUnsafeUpdates = false;
	txtSearch.Text = "";
	}
	}
	else
	{
	string strViewName = "XREFDocuments";
	string oquery = "";
	try
	{
	SPContext.Current.Web.AllowUnsafeUpdates = true;
	if (txtSearch.Text.Trim() != "")
	{
	oquery = "";
	oquery += "" + txtSearch.Text.Trim() + "";
	oquery += "";
	}
	string strDocLibName = "Approved Documents";
	SPSecurity.RunWithElevatedPrivileges(delegate()
	{
	using (SPSite site = new SPSite(SPContext.Current.Web.Url))
	{
	using (SPWeb web = site.OpenWeb())
	{
	web.AllowUnsafeUpdates = true;
	SPDocumentLibrary oDocumentLibrary = (SPDocumentLibrary)web.Lists[strDocLibName];
	SPViewCollection viewColl = oDocumentLibrary.Views;
	viewColl.List.BreakRoleInheritance(true);
	int intCount = 0;
	for (int i = 0; i < viewColl.Count; i++)
	{
	Microsoft.SharePoint.SPView view = viewColl[i];
	if (viewColl[i].ToString() == "XREFDocuments")
	{
	intCount = 1;
	}
	}
	if (intCount == 0)
	{
	System.Collections.Specialized.StringCollection collViewFields = new System.Collections.Specialized.StringCollection();
	collViewFields.Add("XREF_x0020_Documents");
	collViewFields.Add("Admin_x0020_Comments");
	viewColl.Add(strViewName, collViewFields, oquery, 100, true, false);
	}
	for (int i = 0; i < viewColl.Count; i++)
	{
	Microsoft.SharePoint.SPView view = viewColl[i];
	if (viewColl[i].ToString() == "XREFDocuments")
	{
	view.Query = oquery;
	view.Update();
	}
	}
	}
	}
	});
	Page.Response.Redirect(strViewName + ".aspx", false);
	}
	catch (Exception ex)
	{
	throw ex;
	}
	finally
	{
	SPContext.Current.Web.AllowUnsafeUpdates = false;
	txtSearch.Text = "";
	}
	}
	}
	}
	}

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