I Have a webpage named "Test.aspx" and a web user control named "TestWebContro.ascx",..
i have a "Linkbutton" on "TestWebContro.ascx" and "Label" on "Test.aspx",.. now my query is how can we change the text value of "label" on the click event of "LinkButton",...
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; background-color: White">
I have to access the parent form's controls inside an event handler method on my user control's code behind.
View 4 RepliesI am trying to access a control from the code behind in a tmeplated user control and and keep getting an object reference exception.
Is it possible to access these controls. I have tried the find control and just referencing the object i.e. this.someID, non of which worked.
Here is my templated control:
[Code]....
Here is the template ascx code:
[Code]....
Here is the test user control that is using the template:
[Code]....
Here is the codebehind for the test user control:
[Code]....
I have also tried this which throws the same error:
Label label = (Label)this.Page.FindControl( "DateTimeLabel2" );
label.Text = DateTime.Today.ToString();
I'm building a website that just allow each person in my office to access the page from their own PC placed at the office only. It looks like I need to identify a client from within the codes on the ASP.net web server. How can I do this?
View 2 RepliesI am developing an application in which I have to use a User Control.I have created a user control in which I am using
- A Label (whose text will be dynamic)
- 3 Textboxes (whose values will be also dynamic).
So far everything is working fine.Now I used this user control in a aspx page and at the page_load i have to loop thru all the instance of this user control and assign values to them and here the problem begins.The values are not being assigned to the controls.
Here is the code which i have written to loop thru User Control instances and assign values to them.
[Code]...
I'm working on a user control that renders couple nested divs (a rounded corner box to be frank). This is a templated user control, which means that user can put any control he wants into the header, body or footer of this box. Everything is working fine, except the fact that server-side controls can't be retrived from my box. Take a look at this code:
[Code]....
Now codebehind of that control:
[Code]....
I have cut out all the unimportant stuff.Now when I use this control:
[Code]....
I want to access controls in page codebehind file (on Page Load): LiteralNewses.Text="";
but compiler returns an error that LiteralNewses doesn't exist. Also FindControl method can't find this literal.Any tips on what's wrong with this code? According to MSDN, setting TemplateInstance to Single ensures that controls from template will be accessible but not in my case...
how to load user control dynamically on asp.net page? I am loading user control in my page_Init() event under if(!IsPostBack) but when user post the with any button click then my user control is disapper?
If i am loading control without if(!IsPostBAck) then its fine, but each time a page is posted loading of control is not good because it will slow my web site?
I want to use a couple of instances of the same control on a page. The user control is intended to display a list of records in a repeater. The aim is that the second control will show a list excluding the IDs in the first control The control has a number of public properties, including IDsInThisList, and IDstoExclude. The query will exclude the IDs in the second property.
What I would like to do is get the record IDs from the first instance of the control (IDsInThisList), and pass them to the second contro as the IDsToExclude.
I have a test page where I am setting the properties of the controls in code. As you might guess, it's not working! The first control displays the top 3 items, as desired, but the second display the records 1-7, rather than records 4-10 because it is not receiving the IDstoExclude from the first control When I response write the IDstoExclude from the first control in my testpage, the string is empty. (if I do it from within the control, it shows the IDs)
How can I get the controls to fire in order and pass values to each other?
Screen grab of test page + uc and test page code attached
[Code]....
I have a requirement where i need to access the methods of one user control in another user control.
View 8 RepliesI have a couple user controls that are loaded by a Select Case statement. However, in the behind code file for the main page that loads these controls, none of the asp controls show up in intellisense. I had a feeling it's because the controls are loaded conditionally. My question is what is the best way to solve this?
1) Load the controls and do a Select Case in the behind code to make them hidden or not.
2) Is there a way to say (psuedocode): LoadUserControl("UserControl1").Controls("tbTest").Text = ""
3) How can I pass a dataset to the User Control file?
[Code].....
here my code-
GridView gvCondition = (GridView)this.FindControl("ucCondition").FindControl("gvCondition");
gvCondition.DataSource = objConditionFieldCollection;
gvCondition.DataBind();
but it is throwing as exception Object reference not set to an instance of an object.How can I access user control's gridview control from parent page?
How can I access a webform control from a Web User Control?
I have a web form with some textboxes and dropdownlists. I created a Web User Control with other controls (other textboxes) inside it. Now I need to call from the web control source code the values that the controls in my web page have. How do I do it?
I want to access a label in templated user control.
I find this code in internet, but it doesn't work.
Error:Object reference not set to an instance of an object.
public static Control FindControl(Control parent, string id)
{
Control recurse;
if (parent.ID == id)
[Code]....
i have a Wizard control with 3 steps, in step 2 i have a formview, inside formview1 a have a label and a button.
When i click the button i would like the label to over wright the text of the label.
how can i access this label.
i tryed this with no success.
[Code]....
How to load a user control dynamically in a page?
I have a page that contains radioButtons. Each click on a radio button loads a user control (.ascx) in the page.
What I am doing is loading all controls at the same time, but set their visibility to false. When a user clicks a radiobutton I set the visibility of the specific user control to true.
As a result I am loading all the user controls on each postback.
I have create one user control of personal details, and write the geting data from database method and Load the entities in respective field,then how to bind user control in gridview and how to accecc Id of user control in aspx page.
View 1 RepliesHow can i automatically update a user control after a specific time without updating the whole aspx page.
View 3 RepliesI have DropDownList inside User Cotrol and i use this User Cotrol in my asp Page , in my page i have method that take paramter string
now i want to access the the DropDownList SelectedIndexChange from my page to execute the method by passing the DropDownListSelectedValue
(when user selecte value in dropdown list ,when it post back i watn to excute the method depent on value of selecte value )
How to access userControl's properties, when use FindControl method?
View 7 RepliesI'm having trouble to access a Parent's property in User Control. I don't know how to access the parent. The Parent Page's name is Search.aspx. I saw the example below and tried it:
[Code]....
Than I could access the Parent's Property, but when I ran the website I got these errors:
1. The user control is not declared in the parent page
2. The user contol has a circular reference
I'm trying to access a user control from my .vb code behind file. I am actually trying to access a button on that user control page.
View 7 RepliesI have a property on a page called
public string productName { get; set;}
I want to access this in my usercontrol code behind. What's the right way to do it? Currently I am doing
(MyPage)Page).productName
But the user control is not compiling. My pagename is MyPage.
I have create a user control. now i want to crate instance of that user contorl in App_Code floder Class.
View 2 RepliesI have an asp.net 3.5 WebSite application where I have a bunch of UserControls.
In some scenarios I have a reference of type Control (System.Web.UI.Control) that I need to cast to a specific User Control type (to access public properties and methods of the User Control).
The User Control classes are all declared in "the global scope", i.e. not within a namespace. However, for some reason, only some of my User Controls is possible to type in a code file and show up in intellisense and some just wont. In one scenario I could write the cast in code anyway and the site would build (but the UserControl type name did not shift in to the ordinary class name color (light green, you know) in VS text editor), but when running the page I still get the error message about missing using directive or a reference...
If I use the VS 2010 "Navigate to" feature (Ctrl+,) and search for a type I usually get one hit for the Type/Class name and another for the actual file. When searching on my User Control class names I only get the file hits, no class representation. This even goes for those User Control types I actually can access in code.
I've tried to compare the User Control classes that work and doesn't work, but I can't find any difference, they are all declared as public partial.
i have created an user control with a text box and a list control inside ajax update panel to create a control like the google search text box which floods the values as the user types in.
its working fine too...now whats my problem is that when i am trying to use two user controls that i created in the same page. when i am running the page am able to use only the second user control. when i start typing in the first control the focus control is getting passed to the second one automatically and i am not able to type in anything in the first control.
what can be the reason? am using only one script manager for both. the update panel is inside the usercontrol.
