FindControl

Home ›

ASP.NET Forums » General ASP.NET » Web Forms » FindControl

Shortcuts

Previous Next

Last post 07-03-2006 8:08 AM by haidar_bilal. 3 replies.

Sort Posts:

FindControl

07-02-2006, 6:27 AM

Contact

52 point Member
Beemray
Member since 07-02-2006, 9:59 AM
Norway
Posts 22

I'm not able to use FindControl in pageload to get a valid handle on controls.
Why doesn't this code work? I'm going out of my mind.

Syntax in pageload:

public

partial class mypage_aspx : System.Web.UI.Page
{
public mypage_aspx()
{
}
void Page_Load(object sender, EventArgs e)
{
//some code..
//then get a handle on dropdown, does not work?!
DropDownList DropList = (DropDownList)this.FindControl("MyDropDownList");
}

Code in mypage.aspx:

@ Page Language="C#" MasterPageFile="MasterPage.master" CodeFile="mypage.aspx.cs"
Inherits="mypage_aspx" Title="Mypage" Culture="auto" UICulture="auto" %>
<asp:Content ID="Content1" ContentPlaceHolderID="maincontent" runat="Server">
<div id="adminedit">
        <table>
            <tr>
                <td valign="top">
                <fieldset id = "fieldset1">
                
                <h2 class="none">
                    <asp:Literal ID="Myliteral1" Text="MyPage" runat="server"/></h2>
                <asp:Label id="Label2" runat="server" />
                <br />
                <br />
                <legend><asp:Literal ID="Myliteral2" Text="Mypage" runat="server"/></legend>
                    <table>
                        <tr>
                            <td colspan="2">
                    <asp:DropDownList AutoPostBack="true" ID="MyDropDownList" runat="server" DataSourceID="ObjectDataSource1" OnSelectedIndexChanged="DropDownList_SelectedIndexChanged"
                        DataTextField="Description"
                        DataValueField="Code" >
                    </asp:DropDownList>
                  <asp:ObjectDatasSource etc..

Re: FindControl

07-02-2006, 9:35 AM

Contact

45,563 point All-Star
haidar_bilal
Member since 07-13-2003, 9:43 PM
Lebanon - Beirut
Posts 8,726

FindControl is not a recursive method! Check out this method to see how to FindControls when you are working with MasterPages and ContentPages:

ASP.NET 2.0 MasterPages and FindControl()

HTH,

Regards

Bilal Hadiar, MCP, MCTS, MCPD, MCT
Microsoft MVP - Telerik MVP

Re: FindControl

07-02-2006, 5:08 PM

Contact

52 point Member
Beemray
Member since 07-02-2006, 9:59 AM
Norway
Posts 22

Thanks, that worked as a charm! I'm very greatful for your answear. It helped me a lot, I don't have to write repetitive code for each dropdown. Lebanon rules!

Re: FindControl

07-03-2006, 8:08 AM

Contact

45,563 point All-Star
haidar_bilal
Member since 07-13-2003, 9:43 PM
Lebanon - Beirut
Posts 8,726

I am glad I was able to help you out!!

Regards

Bilal Hadiar, MCP, MCTS, MCPD, MCT
Microsoft MVP - Telerik MVP

Page 1 of 1 (4 items)

RSS Available