postback

I have a Textbox that changes the content of a dropdown in the OnTextChanged event. This event seems to fire when the textbox loses focus. How do I make this happen on the keypress or keyup event? Here is an example of my code <asp:TextBox ID="Code" runat="server" AutoPostBack="true" OnTextChanged="Code_TextChanged"> <asp:UpdatePanel ID="Update" runat="server"> <ContentTemplate> <asp:DropDownList runat="server" ID="DateList" /> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="Code" /> </Triggers> </asp:UpdatePanel> So in the codebehind, I bind the dropdown on page load. The

I have a gridview that putted in ASP.NET Panel. both of panel and Gridview are in an UpdatePanel. there is a column in gridview that Causes Partial PostBacks. i want to Maintain Panel Scroll position on those postbacks. Is there any way? regards. There is no built-in facility to resolve it in asp.net However, there is a workaround for this problem; You need to handle it with javascript. Solution is mentioned here: Maintain Scrollbar Position Inside UpdatePanel After Partial PostBack Edited 20-May-2012; after seeing the comments <form id="form1" runat="server"> <asp:ScriptManager ID=

A coworker showed me this: He has a DropDownList and a button on a web page. Here's the code behind: protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { ListItem item = new ListItem("1"); item.Attributes.Add("title", "A"); ListItem item2 = new ListItem("2"); item2.Attributes.Add("title", "B"); DropDownList1.Items.AddRange(new[] {item, item2}); string s = DropDownList1.Items[0].Attributes["title"]; } } protected void Button1_Click(object sender, EventArgs e) { DropDownList1.Visible = !DropDownList1.Visible; } On the page load, the items' tooltips are showing, but on the