Web Forms :: Adding Control From Another Page?
Apr 17, 2010
I am looking for some advice on how to accomplish something. What I have is a gridview on a page that I want on another page. I would like to show this gridview in a modalpopup.The problem is that the gridview is on a page that is not open and is not likely to be the previous page. I have simply put an iframe inside the modalpopup and loaded the page containing the gridview, however this page is a child page and I get a lot of content from the master page that I do not want. All I want from the page is the gridview.The two options I am considering are putting the gridview in the master page or copying the gridview, and all its events code, to the page that calls the modalpopup.Is there a better way to do this? Or should I just put the gridview in the master page. Can I load a control from a page that isn't open?
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Similar Messages:
Aug 26, 2010
I am getting this wired error when I try to add another control on my user control. Is there a limitaion on how many controls we can have on a single user control?
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Jan 20, 2010
In a User Control, I need to add a Div to the end of its parent's page. I've done this in a number of ASPX pages, where I put the code to generate the Div and its contents in the page's PreRender event handler, and it works fine. But when I try to do the same thing in the PreRender event handler for the User Control, I get the following error:
The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.How do I accomplish this in a User Control?
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Feb 12, 2011
I have an asp.net usercontrol which represents a "popup" dialog. Basically, it's a wrapper for the jQuery UI dialog which can be subclassed to easily make dialogs.
As part of this control, I need to inject a div into the page the control is used on, either at the very top or very bottom of the form so that when the popup is instantiated, it's parent is changed to this div. This allows "nested" popups without the child popup being trapped inside the parent popup. The trouble is, I can't find a safe way to inject this div into the page. A usercontrol doesn't have a preinit event, so I can't do it there, and calling Page.Form.Controls.Add(...) in Init, Load or PreRender causes the standard exception "The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases."
I thought I had found a solution by using...
ScriptManager.RegisterClientScriptBlock(Page, Me.GetType, UniqueID + "_Dialog_Div", containerDiv, False)
... which seemed to work well normally, but recently a coworker tried putting an UpdatePanel inside the dialog and now she's getting the error "The script tag registered for type 'ASP.controls_order_viewzips_ascx' and key 'ctl00$ContentBody$OViewZips_Dialog_Div' has invalid characters outside of the script tags: . Only properly formatted script tags can be registered."
How are you supposed to add controls to the pages control collection from inside a user control?
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Jan 19, 2010
I have an existing page. I drag a text box control from the tool box onto the page. When I execute the application I get error (this happens to other additional controls as well):
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
At this point I do not have any errors.
Now when I reference the control in the code behind, it gives me error when I execute the application.
If TextBox2.Text = "" Then
mySqlCommand.Parameters.Add(New Data.SqlClient.SqlParameter("@GroupName", Data.SqlDbType.VarChar, 50)).Value = DBNull.Value
Else
mySqlCommand.Parameters.Add(New Data.SqlClient.SqlParameter("@GroupName", Data.SqlDbType.VarChar, 50)).Value = TextBox2.Text
End If
Error2Name 'TextBox2' is not declared.
Error3Name 'TextBox2' is not declared.
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Jun 4, 2010
How do I add a control to a Page from a class?
My code below works fine on a aspx page, but fails when in a Class on the line:Page.Controls.Add(lbl);
private void MessageBox(string msg)
{
Label lbl = new Label();
lbl.Text = "<script language='javascript'>" + Environment.NewLine + "window.alert('" + msg +
"')</script>";
Page.Controls.Add(lbl);
}
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Mar 1, 2010
Can any body tell me how to add silverlight 3.0 control in master page in asp.net 3.5 (ide VS2008)?
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Jul 18, 2010
I have a page that originally didn't contain a login view. I have now added one of those so that I can vary the display according to role membership.
However I have some VB code that references ojects that were originally on the main page but now sit within the Loginview. These code segments were triggered on a Page_Load event. Since moving the objects on the page all of the references to objects there now fail as if they didn't exist. (Presumably because they are now within a LoginView)
I assume I need to change the location of my code but am stuck to find out where it should now go.
I assuem now I need two versions of my code too - one to match each of the two role possibilities for the LoginView?
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Nov 3, 2010
I have a usercontrol (ascx) that I want to dynamically add to a page.
Neither the control nor the page has a namespace (thanks crappy vendor).
When I use the following, it tells me it cant find the "type or namespace"
StayTunedControl = (UserControler_StayTuned)LoadControl("~/UserControler/StayTuned.ascx");
Page.Controls.Add(StayTunedControl);
StayTunedControl.StayTunedID = Convert.ToInt32(IncludesStayTunedMeta.Value);
After some tweaking to the namespaces, etc, I am now at a point where the 3rd line above generates the following error:
'System.Web.UI.UserControl' does not contain a definition for 'StayTunedID'
I was hoping that casting StayTunedControl as type (UserControler_StayTuned) would fix this.
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Jan 26, 2010
I seem to be having problems with something that I thought would be simple
I have
[Code]....
[Code]....
and I get the error "object not set to an instance of an object" - I have moved it from prerender to load and tryed all sorts of things, but I get the same error.I am just trying to add a literal control to the masterpage from the masterpage code behind
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Mar 11, 2010
I have a set of links that exist in the master page. I have a css class i would like to assign to a particular one of them depending on if that is the page you are at during page load. ex: Home will have the current_page_item class if you are at the index page
This is what I have:
Code:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
DirectCast(Me.Master.FindControl("ctl00_homeLi"), HtmlGenericControl).Attributes.Add("class", "'current_page_item'")
End Sub
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Mar 25, 2011
I am trying to add a user control into a div at runtime. I can add the control no probelem but it overwrites the previous control added.Basically, I am trying to add passengers to a travel system - the passenger details are in the user control and I don't know in advance how many there will be. I have an add new passenger button which should append the new user control into the div without overwriting the previous passenger. The code is c#/.net 4. I have tried to save the control data into viewstate and re add it with the new one but that also doesn't work. Here is a snippet of the code I'm using
foreach (Control uc in p_passengers.Controls) {
Passenger p = uc as Passenger;
if (p != null) {
p.SaveValues();
}
}
however, p.SaveAs() (just writes the control values into ViewState) is never hit.
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Mar 15, 2010
i have a gridview control i added checkbox contrl dynamically but i am not getiing the reference of checkbox in button clilck event here is my code Gridvew
[Code]....
.vb code
[Code]....
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Mar 24, 2011
Adding an ImageButton to the ImageMap control as a child control. I am developing a map that will be contained some user-defined nodes. The user can click anywhere of the map to add the node to that location. X locations and Y Locations are stored in the database. Initializing the page all stored nodes will be created programmatically. My problem is that the created nodes are invisible. If I replace the ImageMap with a panel control then all dynamically created nodes will be visible but in this situation I cannot capture the X and Y locations.
protected System.Web.UI.WebControls.ImageButton
btn;
protected void Page_Load(object sender,
EventArgs e)
{
btn.ImageUrl = "Images/..."
}
override protected
void OnInit(EventArgs e)
{
btn = new ImageButton();
btn.ID = "btn1";
btn.Style["Position"] =
"Absolute";
btn.Style["Top"] =
"100px";
btn.Style["Left"] =
"100px";
ImageMap1.Controls.Add(btn);//... invisible nodes
// Panel1.Controls.Add(btn);//... visible nodes
base.OnInit(e);
}
So I have one of the following problems:
1. Adding child to the ImageMap Control OR
2. Capturing the mouse X and Y Locations in the panel
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Jan 7, 2010
I'm trying to do something that should be very simple, but getting completely stumped on why it's not working.
I have a page that has a few calendar controls, and when the user clicks a date, I want it to toggle the value (in this case it's the "availability" of the date).
I don't want it to post back with every calendar click, so what I'm doing is:
1. During the dayrender event, a Hidden Field gets added to the day. (As it is created, the Hidden Field is added to an array so that it can be retrieved later.)
2. When the user clicks, the value of the Hidden Field is toggled using JavaScript.
3. Once the user is done marking unavailable days, they click a Save button, which gets the values, and saves them to the database.
The Hidden Fields are getting added, and toggling is working just fine. The problem is that when the user clicks the Save button, all the Hidden Fields and their values get cleared, so at the time of the save, it thinks the length of the Hidden Field array is 0.
I think it has something to do with the order in whcih the page is rendered, and the "Save" code executed, but I'm not sure how to fix it. I'm doing something almost identical on another page that works fine - the only difference is that on that page there are no calendar controls, so instead of being added at dayrender, the dynamic controls are added on page load.
If I wanted to add a Hidden Field for each day in a calendar, whose value I can change with Javascript, how do I go about it in a way that I can access the values when clicking a Save button?
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Oct 5, 2010
I work in VS 2008. Whenver I add a server control(Label) and set it properties in aspx.vb and build the solution, I get the error "Label1 not declared". While analyzing this issue I noticed that the event handler statements for the Label1 where not added in the designer.asp.vb file. These statement would actually be added automatically when I drag and drop a control to my webpage.
I would also like to inform the scenario after which this problem came to me. I was working in VS 2008 , VS 2005 and VS 2003 in the same machine.Could this have caused the issue ?
Now each and everytime when I add a control, I am adding the "With Events" code in the designer page to make my build succesfull which makes me to spend more efforts.
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Aug 28, 2012
I need to add Meta tags, description and keywords in aspx page. My aspx pages are in master page and I have already added meta tags and description in my Master Page.
Now I want add in my other pages also so if someone search my site on GOOGLE it should look like same as this:
[URL] ...
How to achieve this?
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Oct 11, 2010
I have problem adding controls from codebehind. What I want do to is to create two textboxes and one button, but I didn't manage to do it. I googled my problem, but only thing I get are results about dynamically adding controls.
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Aug 15, 2010
I'm trying to essentially add a dropdownlist control array to a from from the code-behind but I am getting an HttpException error saying that it must be placed inside a form tag with runat=server. How can I do this? This is the code I have right now for it:
DropDownList[] cmbArray = new DropDownList[8];
cmbArray[0] = new DropDownList();
Page.Controls.Add(synthesisSteps[0]);
This is in the Page_Load event. Also I am using .NET 3.5.
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Aug 26, 2010
My master page looks like:
<head runat="server">
<title>
<asp:ContentPlaceHolder ID="PageTitlePlaceHolder" runat="server" />
</title>
Content pages look like:
<asp:Content ID="TitleContent1"
ContentPlaceHolderID="PageTitlePlaceHolder" runat="Server">
My Page
</asp:Content>
This works by placing the content page specific title on the page ("My Page" in this example). Now I want to add a global prefix to the title in my master page for the site name. So I want:
<head runat="server">
<title>
Example.com:
<asp:ContentPlaceHolder ID="PageTitlePlaceHolder" runat="server" />
</title>
However, when I do this content pages are still rendered without "Example.com" in the tile, it's like it's ignored.
Why is this happening and how can I achieve this?
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Feb 4, 2010
Long time programmer just now getting into .NET so There may be something better but I would like to use the Graphics Server Extended Graph (Graphs32.ocx) on my form.
I tried to put it in the Toolbox by going to Tools --> Choose Toolbox Items --> Com Components tab
then check that item and press OK. From what I saw in help files, it should now appear in the Toolbox. Unfortunately, I can't find it anywhere. Did I miss a step in this process? I then tried adding the ocx to the project Bin folder and repeating the steps. Still can't see it. If I can't get it onto the Toolbox, is there another way I could put the control on the form ?
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Sep 14, 2010
I need to add ClientID of one control to another server control attribute
this line works
[Code]....
so is there any way I can do it since I want to access this control on server side :s
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Dec 13, 2010
I just wanted to add a textbox field as tree node instead of adding a label control(default),i tried overiding prerendering and post rendering function but not able to add a child node as textbox.
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Jan 5, 2011
im just getting started with asp.net and so far im enjoying it! However at the moment im struggling to work out what is possible and what isnt. What i need is a menu control, where one of the submenu items drtops down to show the calender control... With any luck i can expand this so other controls are Drop Down menus, and text boxes etc.
<asp:Menu
ID="mainMenu"
runat="server"
[code]...
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Sep 22, 2010
i had created one user control in c# and i want to add this user control in asp.net application.
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