I have a usercontrol hosted on a page, registered through the web.config.
On the host page, I would like to programmatically reference the my public propeties of the user control in the codefile.
I have a UserControl I created for Navigation that is added to a master page. In a host page, I have a drop down list that I would like to change the value of a dropdownlist in the user control when changed.
I've tried to use the findControl to get the Hyperlink control I'd like to change the value of, but it's always returning nothing. I am thinking this is because the control is nested in a master page. how I can change the value of this item based on the value of a dropdownlist in the aspx page?
I am developing a usercontrol, in this case a toolbar. Some of the buttons on the toolbar will interact with other objects on the page which are not part of the toolbar. (In this case a map) So the toolbar code behind wants to say something like this:
[code]....
My problem is that MyMap does not exist in the design environment of the usercontrol and therefore produces an error when it is referenced. So my question is, How is this typically handled? Can the usercontrol reference another control that does not exist within itself?
I want to be able to add the same Usercontrol by code more than once, when I click a button.
I use this code to load my custom usercontrol:
Private WithEvents MyStatus As controls_MyStatus = CType(LoadControl("~/controls/MyStatus.ascx"), controls_MyStatus)
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Panel2.Controls.Add(MyStatus)
End Sub
the problem is that the usercontrol is only added once
I have two UserControls on a MasterPage. DataEntryUC contains several TextBoxes and DropDownList. NavSaveUC contains navigation buttons. When the user clicks on a navigation button, I will be saving the data entered into DataEntryUC from the NavSaveUC UserControl.
I have a couple of tables in my DB that contain stored procedure names, control names, control types, SqlDbTypes, etc.... that correlate with DataEntryUC.
How do I reference a text box that is on DataEntryUC from NavSaveUC?
I have been working on the following code from NavSaveUC with no luck.
Dim MyControlName = "txtFirstName"
Dim MyControlType = "TextBox"
Dim MyStringValue as String
Dim tmpTxtControl as TextBox
Dim tmpDdlControl as DropDownList
Select Case MyControlType
Case "TextBox"
tmpTxtControl = CType(Page.FindControl(MyControlName, TextBox)
MyStringValue = tmpTxtControl.Text
Case "DropDownList"
tmpDdlControl = CType(Page.FindControl(MyControlName, DropDownList)
MyStringValue = tmpDdlControl.SelectedValue
End Select
I have a page which holds a custom webcontrol and a usercontrol. I need to reference of webcontrol in usercontrol class. So, I make the declaration of webcontrol as public in page class. But, when I do "this.Page.", I don't see the webcontrol listed in list provided by intellisense. Most probably, I am missing something.
In an asp.net page, how to get a reference of a custom webcontrol from a usercontrol?
so you have a dropdownlist. With names of your controls in it. You pick something in your dropdownlist for example Cats. Now I want my dropdownlist to do something with a checkboxlist named Cats.
View 12 RepliesI've added a web reference locally which looks up post codes. All works ok locally. Now I just want to deploy this to my web space. There is a app_WebResources folder with various files that were created when I added this. Basically what I want to know is How do I get all this to work online?
View 7 RepliesI have a .ascx file residing in another page which has a button on it. On click I run a select statement that accesses the textbox for a value.
However, it keeps returning a Null Exception Error. I am trying access the textbox and its text through
[Code]....
I also tried -[Code]....
I also tried -[Code]....
But none of them work. Please can someone advise me how I find the textbox and then access its text?I have looked round the forums / google and cant find a way of doing this!
I am writing an application that does it's own logging in a SQL table. On each page, I statically assign this variable: Dim page = "page_01.aspx" I've noticed that page is ALWAYS equal to the name of the Partial Class of the code-behind + the suffix ".aspx" Is there any way to programatically set the string to equal the name of the Partial Class, so I don't have to statically code it on each page? Basically, I want to assign the name of the current class to a string, and append ".aspx" to it. Can I do this, or does that get lost in the compilation?
View 1 RepliesI'm trying to programatically reference a FileUpload control which I have within an ItemTemplate. I get a 'Name FileUpload1 is not declared' error message. Code below:
Code is as follows:
[Code]....
[Code]....
I need to get a UserControl VirtualPath programmatically. How can I do it?
For example, MyControl.ascx placed in Controls folder, so the result should be "~/Controls/MyControl.ascx".
I have a UserControl that I need to add dynamically. I tried to follow this MSDN article, but I'm not having any success....[URL]
The UserControl is basically an image gallery, and it loads some pictures based on an ID. My idea was to make this ID available as a property. Then when I create an instance of the control, I could set this ID and add it to the form.
I added a reference to the control in the .aspx page that will use it, like this:
<%@ Reference Control="~/PictureGallery.ascx" %>
And in the UserControl I added a ClassName like this:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="PictureGallery.ascx.cs"
Inherits="PictureGallery" ClassName="PictureGallery" %>
When I try to create an instance in the .aspx.cs like the article suggests, Dim gallery As ASP.PictureGallery, I get an "Type ASP.PictureGallery is not defined".
The article mentions a namespace, ASP, and I tried importing it to the .aspx.cs with no luck. So, I'm not able to get a reference to the UserControl.
UserControl: How to set Output Cache duration programaticaly?
View 2 RepliesI have some usercontrol which gets loaded dynamicaly. I know how to add these usercontrols dynamically. The problem is, which usercontrol are to be added is decided only at runtime. So I cannot use <%@ register %> or <%@ Reference %> on the '.aspx' page. How to access the usercontrols without using these directives?
View 4 RepliesI have a page which holds a custom webcontrol and a usercontrol. I need to reference of webcontrol in usercontrol class. So, I make the declaration of webcontrol as public in page class. But, when I do "this.Page.", I don't see the webcontrol listed in list provided by intellisense. Most probably, I am missing something.
In an asp.net page, how to get a reference of a custom webcontrol from a usercontrol?
I have a page that dynamically inserts user controls into a placeholder depending on values in a database table. The user controls consist of a label and one control (dropdownlist, radiobuttonlist, or checkbox). The controls will also have the AutoPostBack property set programmitcally depending on values in the database. My update panel is on the main page, not in the user control. I have tried the ScriptManager.RegisterPostBackControl method to register the UserControl on page load, but the page still does a post back. I think I need to register the control that is inside the UserControl, but I have no idea how to access it from the main page_load event.
This thread is the closest to what I am trying to do, but since I am inserting the user controls programmatically, I need the triggers to be registered programmatically as well. Also, I need to register
them as PostBackTrigger instead of AsyncPostBackTrigger because I need to do a full page reload because the user controls are inserted dynamically.
Environment : Vista,VS-2005I have converted my user controls into DLL.(This is ajax enabled Website).[URL]In another project i have added this reference , register the dll and use the Usercontrol.It is working fine.Question1 : How to add this dll into toolBox?....Question2 : How to Rename this dll?....(This is ajax enabled Website-I have added webusercontrol in this site-After publish th site i got this dll.)
Eg:
user Conrol : Textbox
My Dll Name =App_Web_textbox.ascx.cdcab7d2.dll;
.aspx page (DLL Registration )
<%@
Register
TagPrefix="WebControl"
Namespace="ASP"
Assembly="App_Web_pwtextbox.ascx.cdcab7d2" %>;
<PhaerosWebControl:pwtextbox_ascx
runat="Server"
ID="pwTestDLL"
/>
This Code Workingfine.But i do no how to add this into ToolBox?......
In the same Code behind file I have:
// This works
Label lblTopNavBarInfo = (Label)Master.FindControl("lblTopNavBarInfo");
lblTopNavBarInfo.Text = "Currently Serving: + FirstName + " " + LastName ;
// This compiles but throws an error in the browser
LinkButton lnkBtnProductsOwned = (LinkButton)LeftNav_CustServ1.FindControl("ProductsOwned"); // The Control is visible
lnkBtnProductsOwned.Enabled = false; // Error: Object reference not set to an instance of an object.
in my default.aspx page i have a dropdown List and a textbox with a submit button below that there are 2 listbox... and the dropdown list holds the names of the listbox
my logic here is to select an item from the dropdown list and put some text in the text box and submit the form which will add an item to the listbox selected.. but when i do this i get an error saying Object reference not set to an instance of an object. i tried to figure out the problem and found that when i remove the reference to the Site Master Page it works fine and when i undo and apply my reference back to the Site Master Page i get the same error.
[Code]....
I want to use a dropdownlist control as paging options (50, 100, 150, 200) for a GridView control so I can reuse the user control on other pages that uses paging.The dropdownlist control will be in the user control page and the GridView will be on the host page. How do I reference the GridView control generically from the dropdownlist in the user control to set the PageSize property of the GridView control upon selecting one of the dropdownlist options. Any advice and if there are other means to accomplish such tasks to allow reusability.
View 1 RepliesI have an user control in my default.aspx page
<uc1:FileGridVB ID="FileGridVB1" HomeFolder="~" runat="server" PageSize="5" />
Basically this user control list some files and folders in a gridview.
In my default.aspx file I have an ASP:Button tag with an ID of btnDelete. How can I reference this button from the usercontrol code behind file?
My kind webhost (1and1) royally asked me to go elsewhere to do something like this.
I have 2 sites. One of them was developed by a .Net programmer. Now I am contracted to implement a PHP site and fetch data from the .Net site.
There is an ASP.Net form that a customer fills and when they hit submit, the data gets stored in SQL Server DB. How do I also store the same data in MySQL parallelly? I cannot directly use some database connectors with ASP.Net since MySQL connectivity is not supported on 1and1 Windows hosting (biz account, no less!).
What I thought of is to publish an RSS feed of entries in ASP.Net site and routinely scrape that data into MySQL on Linux host. It is an overkill, I know. Not efficient.
I have one IIS entry with AppPool integrated mode. There are 5 or more host headers assigned. The application pulls data based on the host name from Request.Url.Host. When I have 2 or more sites open at the same time the value of the Request.Url.Host is the same across all the sites. About every 30 seconds it resets itself to the correct value from the last request and shows that value on the other sites. So ultimately the sites are loading the same data. The value in the HOST server variable is incorrect as well.
View 1 Repliesexactly like cms , i want to create page programmatically with this options:1: page-name2: add template (master-page)and etc...
View 6 Replies