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 = "";


                }


            }


        }


 


    }


}