Need accessing the rendered content of a PLACEHOLDER control. I dynamically add a web forms page to a placeholder using "TABLE" this works great (cell row table placeholder ) now I wish to take that placeholder and use the rendered page to generate a PDF document.
If it possible to access the rendered code how would this be done?
I have a UserControl that has some javascript I'd like to inject into a known ContentPlaceHolder.
I was hoping to do something like the following except when I append to add the control to found control I get an exception which says I cannot modify the control collection in the Init, Load or PreRender events:
"UserControl.ascx"
[code]....
I'm creating an ASP.NET control dynamically based on a value selected in a dropdown; for instance the field can be a textbox or a checkbox (for now), and then it gets added to a placeholder control. However, I'm unsure how to retrieve the value - using the placeholder's FindControl method returns null although I'm specifying the ID when I create the control.
Here's my code:
[code]....
I am having a slight problem with adding text (output from a stored procedure) to a label control that is nested inside a contentplaceholder (ContentPlaceHolderProductsLeftCol). The page is also using master pages.
Below are excerts of the code - I think I would have to use teh findcontrol property however I am quite lost.
Label name is lastname and is located in ContentPlaceHolderProductsLeftCol
[Code]....
I'm using a masterpage and having some trouble with my ContentPlaceholders. I have a combobox(DropDownList1) in the sidemenu content placeholder and in my main placeholder I have a gridview. The gridview is supposed to do a select in the db using the selected value of DropDownList1. When I set up the connection SQL within the datagrid, using the wizard; I select to get a parameter from a control and then I select DropDownList1.
Now, When I try to run the page, it returns an error "Exception Details: System.InvalidOperationException: A control with ID 'DropDownList1' could not be found", however if I move DropDownList1 to the main placeholder, everything works perfectly.
How do I get asp.net to see the control sitting in the other placeholder?
Inside Page2.aspx file I'm trying to access Textbox1 control which is defined in Page1.aspx file but it gives error because it cannot find the control. The statement PreviousPage.FindControl("TextBox1") works only if Page1.aspx file is not tied to a master page. How can I find the control when both Page1.aspx and Page2.aspx files are part of the master page as shown below?
Page1.aspx file:
[Code]....
Page2.aspx.cs file:
[Code]....
I'm creating an ASP.NET Control which has a property collection for Columns which the user can edit in the Property Collection Editor..
In most circumstances this works fine, the collection can be edited in the designer and the appropriate tags are added inside the control in the ASPX file.
It works fine when
My control is added to the form
[Code]....
My control is added inside an Update Panel
[Code]....
[Code]....
However, if My control is inside a Content Placeholder which is inside an Update Panel, it fails to work as it should. In this scenario, when the Columns collection is edited in the designer, if you then switch back to Source view, the Columns collection is emptied. I have to save the aspx page before switching back to Source view for the changes to be kept.
[Code]....
how to get around this problem? Is there something I may have missed?
Here's the code for the Control
[Code]....
I'm attempting to set a class on the body tag in my asp.net site which uses a master page and content web forms. I simply want to be able to do this by adding a bodycssclass property (see below) to the content web form page directive.
It works through the solution below but when i attempt to view Default.aspx the Content1 control loses its content.
Here is how I'm doing it. I have a master page with the following content:
[code]....
I have a form in my content page for which I am doing some client side validations via Javascript. The Javascript behaves as expected if I place the JS code directly in the content page. But if I place the JS code in it's own file and try accessing that from the content/master page (through the script tag's src attribute), I get a run time error when the validation function in JS being called.
To be specific, I get the below error:
Microsoft JScript runtime error: Objected expected/required at this line document.getElementById('<%=txtemailId.ClientID %>').value
txtemailId is in the content page.
Javascript code is placed in validation.js and accessed via master page.
The reason I guess is that when .net is parsing the files, it is unable to substitute txtemailId.ClientID with the client side value that would be generated later on. So, how should one go about it?
in my master page content place holder.
i have a grid which is going out of placeholder (as its bit bigger ), when page is loaded. i would prefer it to stay inside the placeholder or expand the placeholder.
Currently its going out side and when it moved out of placeholder it becomes transparent to the materpage default template.
I'm working with a website written in aspx.net over vb.
I have a placeHolder, and I create a table of names inside this PlaceHolder, each name has an HtmlInputCheckBox next to it.
Im doing this in the aspx.vb file, when the page is uploading.
Then, when the user wants to send mail, he presses a button and than I need to access the checkboxes, and I'm having problems with this, the Sub doesn't know the checkBox object.
Is there a benefit from putting a Tabcontainer control on a master page and setting up each of the tabPanels.ContentTemplates to be a content placeholder rather than putting everything into a regular .aspx page?
View 3 Replies(vs2010 sl4 vb.net)
When I create a default silverlight application in VS2010, I get a silverlight user control and a web site that hosts it. The object tag in the apsx page that hosts the silverlight object has its width and height set to 100%. The silverlight user control takes up all the broswer window and it also grows and shrinks properly as the browser is resized. Perfect.
If I add a master page and child page, in the child page I copy the object tag, still set at 100% height, the rendered page does not expand to fill the browser window/ I can set the object tag height to, say, 600, and it now is static at 600, but I want it to be dynamic just like when it was not hosted on a master page.
I do not believe this to be a silverlight issue, but rather a content placeholder sizing issue. I have tried a lot of diffferent ways to set the height, but nothing I do allows me to make the child page hosted object size itself based on the browser window,
Is it possile to get this to work or is this a consequence of using master pages? I can post sample code demonstrating this if needed.
EDIT: I was able to use a javascript function on window.onload to get the browser height and set the div height that contains the object tag, this works but is not dynamic. I would like it to be dynamic like the non-master page hosted object is.
the response.write() output does not show in content placeholder but on top of the page.
[Code]....
I have user control in the master page. user control code behind page having public property called SetValue.
Now I want to set the value from content page .
Aplogies if this has been discussed before but I couldn't find an answer.
I'm trying to use jquery/Ajax to access some webmethods in my codebehind. This is fine, but I would in my function like to reference a placeholder (phStory in the code below) on my page and also load a usercontrol into that placeholder.
Unfortunately I get the message: "An object reference is required for the non-static field, method, or property 'TestControls.phStory' " and similar for the usercontrol. Does anyone know how I can still access my placeholder and usercontrol from within this.
It has to be stati as it's a WebMethod but this then throws up these errors.
[code]....
I tried this much:-
protected void Page_PreInit(object sender, EventArgs e)
{
class1 obj = new class1();
DataTable dt = new DataTable();
dt = obj.get_text();
ContentPlaceHolder ContentPlaceHolder1 = ContentPlaceHolder)this.Master.FindControl("ContentPlaceHolder1");
ContentPlaceHolder1. ????
}
I have the following code behind that was, until recently, working fine and dandy!
tbxProdAC.Attributes.Add("onclick", "$('#" + GridView1.ClientID + "').remove();
$('#" + radProdAC.ClientID + "').attr('checked', true);
$('#" + ddlBuyer.ClientID + "').val('--Choose Buyer--');
$('#" + ddlSub.ClientID + "').val('--Choose Sub Category--');
$('#" + ddlProd.ClientID + "').val('--Choose Product--');");
However, ever since I have introduced the notion of content place holders (from a master page), I am repeated getting the Object Expected error.Now I understand why this is happening, asp.net is amending the control names to take into account the CPH i.e. $('#ctl00_ContentPlaceHolder1_radBuyer').attr('checked', true);
How do I go about reslving this issue, effectively 'renaming' my asp.net controls to take this into account?
I've got a master page and a content page. How can I add controls to the master page's content placeholders programattically?
View 2 RepliesGOAL: on a web page (vb.net) content in a placeholder will refresh with a different .ascx (user control) every 30 seconds (rotating 3 in total) and of course i dont want to refresh the whole page, just the placeholder.
I'm new at AJAX (that's my first problem - lol)
I set the timer up to call a function, but not sure how to go about refreshing the placeholder with a different ascx file. I'm sure i'll be using UpdatePanel to do this, but haven't been able to figure this out. Easy to replace a value in a label using AsyncPostBack trigger, but nothing on how to achieve this.
Is there possible to work update progress in the page inside content placeholder.
View 2 RepliesI know the content palcehlder does not have a size ,I have a masterpage and content page, the master page has a table with a header, content area, and footer, header and footer are fixed size, content area is 100%. As the user sizes the browser the content area grows and shrinks and the footer stays at the
bottom of the browser window - perfect!
Problem: The contentpalceholder does not grow to fill the available content area. Now, the contentplaceholder gets its size from its contents, which in this case is a div holding a silverlight object.I was thinking I could hook the master or child page's re-size event and somehow pass that info onto the SL object, but as it turns out (and I'm surprised I never knew this) there is no aps.net page re-size event! (really?, wow.)
So is there a way to get a SL object hosted on a master page to size itself based on the size of the browser window?Or more generally, a way to size the contents (like a div or panel) of a contentplaceholder based on the browser? on a standard aspx page (not a master page) I CAN get the SL object to size itself based on the broswer, the problem seems to come from the fact that I'm hosting the SL object in a content placeholder.
I guess I could 'unroll' the master page into several standalone pages and have it work, but the menu is on the master page and I'm used to using them, plus it's already done...<sigh>
I am having asp:hyperlinks in my master page, which i use as my page headers. I would just like to change the text format of the hyperlink when a content page is loaded.
the CS code for accessing the master page contents from content page?
I have a MasterPage in my project which it contains a FormView and the FormView is databound with a Connection String to a SQL DataBase.
This FormView is selecting users information from Database, when the ContentPage is loading, Im trying to get the information from the FormView of MasterPage and load them in Content Page, but it is not working fine for me.
For Example:
In MasterPage I have a FormView such as follow:
Name: Amir
LastName:Zandi
Username:amirzandi
In ContentPage, I have a Label and I want to get the name from MasterPage and replace it with the text of the Label.
I am doing this at PageLoad of Content Page with the Following Code:
[code]...
At the page load of ContentPage, it says that it could not find the FormView1
but after I refresh the page, it works fine.
is there anyway for me to ask the FormView in MasterPage to DataBind and After that, it retrieves the Data from FormView and place them into the ContentPage.
I also tried: fv.databind() but it is not working.
I've done this a bazillion times but today my mind is simply blank and because it is so easy I've no notes on it.
If I set Title="foo" in the <%@ Page directive of my content page, how do I reference it in the code behind of my master page? I need to use it in a Select Case.
I swear, if my head wasn't permanently attached, I'd have lost it somewhere today.
PS. This question is only silly because I'm asking and I should know the answer.