Find Control In Usercontrol From Page

Sep 2, 2010

I am loading a control to a page dynamically with LoadControl("src to file"). In the usercontrol i have a validator and some other controls that i would like to access from my page. I canät get it to work, null pointer exception. Scenario is like this. I have a Edit.aspx page which loads the EditTemplate.ascx usercontroll. I would like to get information or find the controls in the EditTemplate from the Edit.aspx site. I have tried exposing the controls and validators as properties but how do i access them from my Edit.aspx?

Example code:
Edit.aspx, the control is later added into a
Control control = LoadControl("src to ascx");
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="CompanyImageFile" ErrorMessage="RequiredFieldValidator"></asp:RequiredFieldValidator>
public partial class EditTemplate : System.Web.UI.UserControl, IEditTemplate {
public RequiredFieldValidator Validator {
get { return this.RequiredFieldValidator1; }
set { this.RequiredFieldValidator1 = value; }

From the Edit.aspx site i would like to check the validators isValid property. Isvalid is set in a Save method. The save button that saves the template is located in edit.aspx, so the post in done from that page. So the question is how to get a hold of the property from the usercontrol in the edit.aspx page, where and how should this be done?

View 3 Replies

Similar Messages:

User Controls :: Find And Access Master Page Control From UserControl Inside Content Page

Jan 24, 2014

On masterPage i have button btnTest, how hide button from masterPage on userControl.ascx


   btnTest.visible = false;

View 1 Replies

User Controls :: Find TextBox Control Inside UserControl On Page

Jan 15, 2014

I have a user control with a textbox. I am loading it at runtime on parent page with code behind.After click of button on a parent page i need the text of that usercontrol's textbox.

I tried with following code but it does not work for me

myusercontrol us = new myusercontrol();
TextBox textbox = (TextBox)us.FindControl("txtusercontrol");
string str = textbox.Text.ToString();

View 1 Replies

Web Forms :: Can't Find Control (textbox) Inside UserControl

Mar 4, 2011

I can't seem to find a textbox using FindControl. The textbox is located inside an asp:Table, asp:Table is inside a UserControl and I load the usercontrol into the parent page.

View 5 Replies

Access Control In Page From UserControl?

Jun 8, 2010

How do I access the Control (dropdownlist) in current Page from the UserControl? In the UserControl:

String test = ((DropDownList)this.Parent.FindControl("drpdwnlstMainRegion")).SelectedValue;
String test = ((DropDownList)this.Page.FindControl("drpdwnlstMainRegion")).SelectedValue;

It return null on ((DropDownList)this.Parent.FindControl("drpdwnlstMainRegion")) for some reason? BTW ... I am using ASP.NET C# 3.5.

View 2 Replies

C# - How To Access A Web Control Inside A UserControl From Aspx Page

Jun 16, 2010

i have 2 textbox controls inside a usercontrol TextBoxUC.ascx i have a page.aspx that contains the usercontrol. how can i get a reference to each textbox using javascript from page.aspx?

View 3 Replies

UserControl - Accessing A Child Control In The Parent Page?

Nov 3, 2010

If for example my userControl has a CheckBox called IsGreatCoder and the userControl is embedded in a main page (parent page).

I normally have gained access to the IsGreatCoder.Checked value in the main-page by exposing it through a public property that I have to manually write (say "IsAGreatCoder").

If UserControl is included in the main page as "userControl1", then I would access it as "userControl1.IsAGreatCoder".

But, I was wondering if there was anyway to declare the UserControl such that all the UI controls added to it were declared as being public, that way allowing me to gain access to the actual controls in the main page (the parent).

Essentially I would like to be able do something like userControl1.IsGreatCoder.Checked instead of having to implement a property.

The reason I want to do this is that I want to have access to many more of the check-box's properties and it would be a pain to implement each one as a public property.

View 1 Replies

Web Forms :: Find A Control Inside Nested Master Page And Another Control Container?

Dec 1, 2010

I'm trying to find a TextBox in the code-behind page, it's inside a nested master page and also then inside another control container (it's inside ctrlCheckoutShippingAddress also) .

I've tried this:



View 2 Replies

Web Forms :: How To Find Control Inside User Control From Page

Nov 10, 2010

I have on dropdown that show hide user control. In the user control i have Ok and Cancel button.

When the dropdown change i want to apply ValidationGroup on the Ok button that is inside UserControl.

View 2 Replies

Web Forms :: Find Hyperlink Control In Master Page From Content Page?

May 7, 2015

I have hyperlink in page

<asp:HyperLink ID="HyperLink1" runat="server" class="lblMenuMessage" NavigateUrl="~/Admin/صندوق-پیام.aspx">صندوق پیام</asp:HyperLink>

and css

margin:0 12px 0 0;

and I want change it's color in behind code so I wrote:

(this.Master.FindControl("HyperLink1") as HtmlGenericControl).Style["color"] = "black";

but below error happen:

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.Source Error: 

Line 13:
Line 14: (this.Master.FindControl("ADMenuMessage") as HtmlGenericControl).Style["background-image"] = Page.ResolveUrl("~/Image/ADactivmenu.png");
Line 15: (this.Master.FindControl("HyperLink1") as HtmlGenericControl).Style["color"] = "black";
Line 16: }
Line 17: }

how I can change hyperlink textcolor in behind code?

View 1 Replies

AJAX :: Find Script Manager Control In Master Page And Access It From Content Page

Dec 11, 2013

I looked at your example URL....I have ScriptManager in masterpage how call  ScriptManager from masterpage in editorPage.aspx if (Script Manager 1.IsInAsyncPostBack)

View 1 Replies

User Controls :: Pass DropDownList Control Value From UserControl To Parent Page Label

Sep 4, 2012

I have a  User Control which has a dropdownlist.

Now i want this dropdownlist value in parent page in a label control.

whenever i change dropdownlist value label value should be change.

How can i do it?

View 1 Replies

MVC :: Find Master Page Control In View Page?

Jul 26, 2010

I have one master with one link button ,and i am using this master page in view page .

I want to get link button control in View page .

As i am trying to get it from Javascript in view page using document.getElementById() but its giving null.

Is there any way like where we can access easily using runtime ID .

View 2 Replies

AJAX $find Always Returns Null In Usercontrol?

Jul 30, 2010

I want to use multiple targets with my ModalPopUp extender. One of my buttons is set as target in the ModalPopup and the other one will use server-side code to show the ModalPopup.

This is my ModalPopup so far:

<msAjax:ModalPopupExtender ID="modalInform" runat="server"
TargetControlID="btnSearchUsers" [code].....

Then I found this little tutorial on the ASP.NET AJAX site.But when I use $find("modalInform") in the pageLoad Javascript function (as defined in the tutorial at the bottom), I'm always getting a $find("modalInform") is null error.

This code is included in a usercontrol, the usercontrol is used in a ASPX page and this ASPX-page uses a MasterPage.
I've noticed that if I'm using

<%= modalInform.ClientID %>

I'm getting a different value then defined in my HTML-source (propably because of the MasterPage?).

View 1 Replies

C# - Find A Control Or Page A Control Is Embedded In?

Jan 9, 2011

I've written a web user control which I want to be able to drop into the markup for either aspx pages or other web user controls.I need my user control to be able to easily and efficiently work out if its inside another user control or an aspx page. My initial idea is to do it recursively with checks on the Parent property - continue looking up the nesting hierarchy until I find either a web form or a user control - but I'm not sure this the best way of going about this.

View 3 Replies

C# - Find Control On Page By Id?

Dec 9, 2010

Is there a simple way to find a control in ASP.NET by id (in any nested container)? Other than traversing whole controls tree.

Something like this example:

TextBox tb = new TextBox() { ID = "textboxId"};

And in other method/class:

TextBox nameTextbox = MethodToFindControl("textboxId") as TextBox;

View 2 Replies

How To Find Previous Page Control

Jun 24, 2010

The code was working correctly until i used a master page.

vb Code:
Dim athUsr As New AuthenticateUser()
If (IsPostBack = False) Then
Dim objcoll As UserRegistrationColl
objcoll = UserRegistrationProvider.GetDynamic(Nothing, "UserId='" + SessionManager.UserId.ToString + "'", Nothing)

View 9 Replies

Web Forms :: Find The Control In A Page?

Mar 19, 2010

I am having couple of check box in my web page.How to I find them using VB SCRIPT?I want to know which of them is selected?

View 4 Replies

Getting Value From Textbox From One Page To Another With Find Control

Mar 31, 2012

I have a MasterPage with a Textbox and an imageButton, one this MasterPage im using a web.Sitemap and global.asax for navigation, its works fine.Im im one the page URL... i get this in the browser bc of the global.asax URL...So its works fine the navigation.My problen is that when i type ind a value in the textbox on the masterpage and click the imageButton its then PostBackUrl="~/imailtest.aspx" that page isent using the masterpage but its looking for the id for the textbox on the masterpage.

But every time i hit the imagebutton i get this error: HttpException was unhandled by user code.The file /ebbe/Butikken do not exsist.And it ref to the codeline ct=Me.Prev..... line.

So its PostBack me from the default.aspx (With masterpage) to the imailtest.aspx as it need to, i just cant get the vaule from the textbox id="newsletter" from the masterpage.bc. it cant find the page.My imailtest.aspx Code_Behind is:

Partial Class imailtest
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load


View 6 Replies

User Controls :: How To Find GridView Inside UserControl Using JQuery

Apr 13, 2013

Click Me in a UserControl. I downloaded the sample attached there and its working fine but i am trying to create UserControl out of it. No rows are getting loaded on scrolling down. I modified the code to look like this..

var lastProductId = $("#<%=Test1.GridView1.ClientID %> tr:last").children("td:first").html();
//get last table row in order to append the new products
var lastRow = $("#<%=Test1.GridView1.ClientID %> tr:last");

function GetRowsCount() {
//Count no. of rows except header row in the grid.
var rowCount = $('#<%=Test1.GridView1.ClientID %> tr').length - 1;
return rowCount;

Its giving me error: The name 'Test1' does not exist in the current context. Test1 is the Id of my USerControl. Test1 is the ID of UserControl. I found your tutorial on similar issue but i did not use it because i am not using stored procedure and i know nothing about XML. At this point i just want to make the sample attached in that article(one i provided) to work as a UserControl.

View 1 Replies

Web Forms :: Find Repeater Control On Page?

Jan 5, 2010

I have a method that needs to find the repeater control to add data. I try the code below, but keep getting an error "not set to an instance of an object."

hyp = (HyperLink)Repeater1.FindControl("orderID");
hyp.ID = docName;

View 2 Replies

Web Forms :: Find Control In Master Page

Apr 1, 2010

i am using master pages. i want to use findcontrol. but i am not getting expected result. my scenario:

Master Page--> ContentPlaceHolder-->Html Table-->Panel-->placeholder--> here i am dynamically generating textbox controls.

i am using following syntax:

TextBox txtAmt = (TextBox)this.Master.FindControl("EmpJobInfo_Content").FindControl("GBTable").FindControl("PanGB").FindControl("PlaceHolder1").FindControl("tbl").FindControl("txtinstallment");

View 26 Replies

Find User Control's Id In Aspx Page?

Jan 28, 2011

I have an aspx web application in which 1 aspx page and 1 web user controls exist. I added 4 instances of the user control in aspx page. There is a remove button in user control which is used to remove the control from the aspx page. If I click on remove button of the user control, how can I find that which user control's remove button is clicked from the aspx page.

View 3 Replies

Using C# FindControl To Find User Control In The Master Page

Mar 31, 2010

So all I want to do is simply find a user control I load based on a drop down selection. I have the user control added but now I'm trying to find the control so I can access a couple properties off of it and I can't find the control for the life of me. I'm actually doing all of this in the master page and there is no code in the default.aspx page itself.




protected void goToSelectedPage(object sender, System.EventArgs e)
temp1 ct = this.Page.Master.LoadControl("temp1.ascx") as temp1;
ct.ID = "TestMe";
//This is where I CANNOT SEEM TO FIND THE CONTROL ////////////////////////////////////////
protected void lnkSave_Click(object sender, System.EventArgs e)
UpdatePanel teest = this.FindControl("UpdatePanel1") as UpdatePanel;
Control test2 = teest.ContentTemplateContainer.FindControl("ctl09") as Control;
temp1 test3 = test2.FindControl("TestMe") as temp1;
string maybe = test3.Col1TopTitle;

Here I don't understand what it's telling me. for "par" I get "ctl09" and I have no idea how I am supposed to find this control. temp1.ascx.cs

protected void Page_Load(object sender, EventArgs e)
string ppp = this.ID;
string par = this.Parent.ID;

View 1 Replies

How To Put Common LOGIC Control (Like Search/Find) On Each Page

Jan 13, 2011

I'm having trouble figuring out how to do the following:On every page (or every page I so desire), I'd like to put a common control widget (e.g. think - Search functionality that contains a textbox+button). What's the best way to do this, and who handles the submit button (assuming it is a submit button)?i.e. what does my ViewUserControl look like? Does it have a form? does it use jQuery onclick""? Does it post to the main View's action method, or can I redirect it to another Controller/Action

View 5 Replies

Copyrights 2005-15, All rights reserved