How to implement search functionality with repeater? - asp.net

Question

I have an aspx page like this:
<asp:TextBox ID="SearchInput" AutoPostBack="true" runat="server" />
<asp:Repeater ID="SelectUserListItemRepeater" runat="server">
<ItemTemplate>
<div><%# DataBinder.Eval(Container.DataItem, "Title")%></div>
</ItemTemplate>
</asp:Repeater>
And code behind like this.
using System;
using System.Linq;
using System.Collections.Generic;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Test : UserControl
{
private IList<TestItem> items;
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
items = new List<TestItem>();
items.Add(new TestItem { Title="Lars"});
items.Add(new TestItem { Title = "Johan" });
items.Add(new TestItem { Title = "Bob" });
SelectUserListItemRepeater.DataSource = items;
SelectUserListItemRepeater.DataBind();
SearchInput.TextChanged += new EventHandler(SearchInput_TextChanged);
}
void SearchInput_TextChanged(object sender, EventArgs e)
{
var input = sender as TextBox;
var searchResult = items.Where(i => i.Title.Contains(input.Text));
/* Here I would like to show this search result in the Repeater,
* but what is the best way to do it?
*/
}
}
public class TestItem {
public string Title { get; set; }
}
What is to best way to implement search functionality in this kind of situation? I have one search text input and one repeater which renders a list of strings in DIV elements. When user writes some search key in a input then the repeater should only show those strings which contains the search key? How can I hide other RepeaterItems which doesn't contains the search key? or should I remove those RepeaterItems some how?

Answer 1

Try this:
void SearchInput_TextChanged(object sender, EventArgs e)
{
var input = sender as TextBox;
var searchResult = items.Where(i => i.Title.Contains(input.Text));
SelectUserListItemRepeater.DataSource = searchResult;
SelectUserListItemRepeater.DataBind();
}

Answer 2

Try this
private static List<TestItem> items = new List<TestItem>();
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
items = new List<TestItem>();
items.Add(new TestItem { Title="Lars"});
items.Add(new TestItem { Title = "Johan" });
items.Add(new TestItem { Title = "Bob" });
SearchInput.TextChanged += new EventHandler(SearchInput_TextChanged);
// bind repeater.
BindRepeater();
}
protected void SearchInput_TextChanged(object sender, EventArgs e)
{
var input = sender as TextBox;
items = items.Where(i => i.Title.Contains(input.Text)).ToList();
BindRepeater();
}
private void BindRepeater()
{
SelectUserListItemRepeater.DataSource = items;
SelectUserListItemRepeater.DataBind();
}