Reference URL: http://jasear.wordpress.com/2012/04/19/sharepoint-2010-basic-list-search-filter-webpart/
.ascx
<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$"%>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register Tagprefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register Tagprefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %>
<%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="ListSearchUserControl.ascx.cs" Inherits="SearchWebpart.ListSearch.ListSearchUserControl" %>
<script type="text/javascript" src="/sites/new1/_layouts/scripts/jquery-1.6.3.min.js" src="/sites/new2/_layouts/scripts/jquery-1.6.3.min.js">
$(document).ready(function () {
var base_RefreshPageTo = RefreshPageTo;
RefreshPageTo = function (event, url) {
var filterName = getQuerystring('FilterName');
var filterValue = getQuerystring('FilterMultiValue');
var newUrl = url + '&FilterName=' + filterName + '&FilterMultiValue=' + filterValue;
if (filterName != '' && filterValue != '') {
base_RefreshPageTo(event, newUrl);
}
else {
base_RefreshPageTo(event, url);
}
return;
}
});
function getQuerystring(key, default_) {
if (default_ == null) default_ = "";
key = key.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regex = new RegExp("[\\?&]" + key + "=([^&#]*)");
var qs = regex.exec(window.location.href);
if (qs == null)
return default_;
else
return qs[1];
}
</script>
<table>
<tr>
<td>
<strong>Search Criteria:</strong>
</td>
<td>
<asp:TextBox ID="TbSearchText" runat="server" Width="300px"></asp:TextBox>
</td>
<td>
</td>
<td>
<strong>Field name:</strong>
</td>
<td>
<asp:DropDownList ID="DdlListFields" runat="server">
</asp:DropDownList>
</td>
<td>
</td>
<td>
<div align="right">
<asp:Button ID="BtnSearch" runat="server" OnClick="BtnSearch_Click" Text="Search" />
<asp:Button ID="BtnClearFilter" runat="server" Visible="false" OnClick="BtnClearFilter_Click"
Text="Clear Criteria" />
</div>
</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.Text;
using System.Collections.Specialized;
using System.Collections.Generic;
using System.Drawing;
namespace SearchWebpart.ListSearch
{
public partial class ListSearchUserControl : UserControl
{
//SPSite site = SPContext.Current.Site;
//SPWeb web;
//SPList list;
public class OptionEntity
{
public string Id { get; set; }
/// <summary>
/// Gets or sets the title.
/// </summary>
/// <value>The title.</value>
public string Title { get; set; }
public string To { get; set; }
public OptionEntity()
{
}
}
private List<OptionEntity> GetSharePointListFieldItems()
{
List<OptionEntity> fieldItems = new List<OptionEntity>();
fieldItems = new List<OptionEntity>();
OptionEntity item;
SPField field;
StringCollection viewFieldCollection = SPContext.Current.ViewContext.View.ViewFields.ToStringCollection();
foreach (string viewField in viewFieldCollection)
{
//SPSite site = SPContext.Current.Site;
//SPWeb web = site.OpenWeb();
//SPList list = web.Lists["peoplepicker"];
field = SPContext.Current.List.Fields.GetFieldByInternalName(viewField);
item = new OptionEntity();
item.Id = field.InternalName;
item.Title = field.Title;
fieldItems.Add(item);
}
return fieldItems;
}
protected override void CreateChildControls()
{
base.CreateChildControls();
List<OptionEntity> items = GetSharePointListFieldItems();
DdlListFields.DataSource = items;
DdlListFields.DataTextField = "Title";
DdlListFields.DataValueField = "Id";
DdlListFields.DataBind();
}
/// <summary>
/// Raises the <see cref="E:System.Web.UI.Control.Load"/> event.
/// </summary>
/// <param name="e">The <see cref="T:System.EventArgs"/> object that contains the event data.</param>
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
if (!IsPostBack)
{
if (Request.QueryString["FilterName"] != null)
{
DdlListFields.SelectedValue = Request.QueryString["FilterName"].ToString();
}
if (Request.QueryString["FilterMultiValue"] != null)
{
TbSearchText.Text = Request.QueryString["FilterMultiValue"].ToString().Replace("*", "");
BtnClearFilter.Visible = true;
}
}
}
/// <summary>
/// Handles the Click event of the BtnSearch control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
protected void BtnSearch_Click(object sender, EventArgs e)
{
string redirectUrlFormat = "{0}?FilterName={1}&FilterMultiValue={2}";
string[] selectionCollection = TbSearchText.Text.ToString().Split(new string[] { ";" }, StringSplitOptions.RemoveEmptyEntries);
StringBuilder sbValues = new StringBuilder();
foreach (string selection in selectionCollection)
{
sbValues.Append("*" + selection.Trim() + "*;");
}
string urlToRedirectTo = string.Format(redirectUrlFormat, Request.Url.GetLeftPart(UriPartial.Path), DdlListFields.SelectedValue, sbValues.ToString());
Response.Redirect(urlToRedirectTo);
}
/// <summary>
/// Handles the Click event of the BtnClearFilter control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
protected void BtnClearFilter_Click(object sender, EventArgs e)
{
Response.Redirect(Request.Url.GetLeftPart(UriPartial.Path));
}
}
}
