Control Within Ascx Is Null When Ascx Is Added From Codebehind?
Apr 14, 2010
I am having difficulties how to construct my question, but if I have to put it simply the situation is that I have categories of products. I have an aspx with a repeater on the left that lists the categories. And I want the products to be listed on the right. Category number is variable so I made an ascx with a DataList in it. When I try to do foreach category, ascx = new ascx(); then the DataList within this ascx control is null.
ps: what I want to do is to preload all the products (thre is not much) and hide the divs and fadein fadeout them using jQuery when a category div is clicked.
rightnow it is using jQuery.load(); and I don't like how the images load, cuz they download from top to bottom. Progressive gifs alsdo not an option. site demo is here [URL]
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Aug 10, 2010
I have to build a few ascx partial views in my MVC applications to encapsulate re-usable functionalities as well as archive SOR and SOC. However, I encountered challenge how to encapsulate the business logic that drives MVC ascx views.In webforms, the code behind of an ASCX control can handle a button click event and browser still shows the same page with only one postback. How can I archive the same thing in MVC? When ~/Address/Edit/2 includes an ascx partial view with a button on it that calls another MVC action - let's say ~/ShareController/CommonAction - what is the best way for the CmmonAction to return to the very same view that includes the ascx file?Perhaps I am missing a common pattern in MVC web development?
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Mar 12, 2011
[Code]....
works okey in aspx codebehind. However, how can I get the same parameter value from an ascx file codebehind.
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Mar 16, 2010
I'm developing second language support for the site. So I made duplicate .ascx and .aspx files for existing ascx.cs and aspx.cs
Most of the time everything works fine.. but suddenly I'm getting:
Type 'ctrl_car' exists both in 'c:WindowsMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files
zhdengined072cc729d5698bApp_Web_xdmblegv.dll', and in 'c:WindowsMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files
zhdengined072cc729d5698bApp_Web_gkptrzo2.dll' (translated from russian)
ctrl_car ctrl = (ctrl_car) LoadControl("car.ascx");
I have few such strings of code... and same error occurs with one of them. But WITHOUT any changes from me with those files. To fix thaat bug for some time I need to delete solution and website folder and reget them from SS. Solution was converted from vs2005.
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Jan 13, 2010
[Code]....
Plus this
[Code]....
work, but not this
[Code]....
plus this
[Code]....
The error message is: "File WorkitemAction.ascx.cs was not found".I swear that the file is there. It is visible in the solution explorer as a subnode to WorkitemAction.ascx plus the WorkitemAction.ascx.designer.cs
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Sep 16, 2010
i have made a BaseUserControl.ascx and a ChildUserControl.ascxfile. both have its own code behind file.So what i want, i wanted to inharit ChildUserControl.ascx fileto BaseUserControl.ascx. so whatever in my BaseUserControl.ascx fileshould be visible into the ChildUserControl.ascx,means if i have kept a TextBox in BaseUserControl.ascx should be visibleinto the ChildUserControl.ascx desing view. and it should be accessible into the ChildUserControl.ascx code behind file.
1) Is this possible, if yes then how?
2) if above is possible then How to access BaseUserControl.ascx code behind file into the ChildUserControl.ascx code behind file?
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Oct 15, 2010
I have an ASCX that contains
<my:Foo ID="Bar" runat="server" Value='' />
I want to set Value with textbox1.Text, but Value is an Int32. I am looking for something like this:
<my:Foo ID="Bar" runat="server" Value='<%= Int32.Parse(textbox1.Text) %>' />
But I getParser Error Message: Cannot create an object of type 'System.Int32' from its string representation '<%= Int32.Parse(textbox1.Text) %>' for the 'Value' property.Is there a way to do this on the ASCX file? Do I have to implement a TypeConverter for this property?
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Jul 16, 2010
how can i load ascx control in asp.net mvc view ? i am using url.action in src but it is not working.
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Sep 24, 2010
How can I register a css code block inside an ascx control?
Can I just have
<head id="head" runat="server">
<style type="text/css">
.customClass
{
background-color: Lime;
}
</style>
</head>
Anywhere in ascx page? I doesn't seem to work?
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Feb 5, 2011
I have a dropdown list on my form which should filter out or display my tag cloud for an entire project or for a specific iteration. At the moment, I don't get any errors, but the ASCX control doesn't seem to update.
<asp:DropDownList ID="filteroptions" runat="server" onselectedindexchanged="filteroptions_SelectedIndexChanged" AutoPostBack="true"></asp:DropDownList>
<asp:UpdatePanel ID="UpdateIteration" runat="server">
<ContentTemplate>
[Code]....
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Feb 5, 2011
I am using a databound dropdown list to populate a combobox with project iterations and an ascx control to display a tag cloud. I am retrieving the selectedValue of the dropdown and storing it as a session to filter out the tag cloud (for the entire project or by iteration).I am getting an error, because the default value which I have entered cannot be then converted to an integer.
[code]...
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Dec 15, 2010
I have .ascx web user control in my web site. Now I want to make dll for that .ascx file. let me know steps how can I make .dll file for that .ascx web user control.
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Jun 27, 2010
Here's the source of a blank .acsx file I created called LogOnBox.
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="LogOnBox.ascx.cs" Inherits="ECommerce.Views.Shared.LogOnBox" %>
I want to drag some labels, and textboxes etc and give them style using a CSS file. How can I associate a CSS to an acsx file?
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Jul 21, 2010
I am not able to get the htmlinputimage control id created dynamically based on no of rows reterived from db.
these controls are bn created in usercontrol (.ascx.vb) page
The actually requirement is ...there are set of images in a table, i need to get a particular image src, based on that i need to collect the image id(s) and use it for futher process...
and this is poosible using a FindControl... which i have bn trying , but all invain...
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Jan 11, 2010
i've tried to get an asp.net dropdownlist control to become a dijit combobox but it's not working. i've tried this:
<asp:DropDownList ID="ddlUserID" dojoType="dijit.form.ComboBox" runat="server"
DataTextField="FullNameAndUserName"
CssClass="stdtext" DataValueField="UserID" AppendDataBoundItems="True"
AutoPostBack="True"
meta:resourcekey="ddlUserIDResource1" EnableTheming="False">
<asp:ListItem Text="(All Users)" Value="0" meta:resourcekey="ListItemResource1" />
</asp:DropDownList>
<script type="text/javascript" src="../scripts/dojo/dojo.js"></script>
<script type="text/javascript">
dojo.require('dijit.form.ComboBox');
</script>
the path to dojo.js is relative to the containing parent page of the ascx control and loads fine according to firebug.
the rendered html is this:
<select id="invoiceReport1_ddlUserID" class="stdtext" dojotype="dijit.form.ComboBox" onchange="javascript:setTimeout('__doPostBack('invoiceReport1$ddlUserID','')', 0)" name="invoiceReport1$ddlUserID">
</select>
<script src="../scripts/dojo/dojo.js" type="text/javascript">
</script>
<script type="text/javascript">
</script>
<script type="text/javascript">
looking at the examples from http://docs.dojocampus.org/dijit/form/ComboBox
i cant see why the resulting select tag is not a combobox.
i've also tried this:
HtmlGenericControl ctrl1 = new HtmlGenericControl("Script");
ctrl1.Attributes.Add("Type", "Text/Javascript");
ctrl1.Attributes.Add("src", "../Scripts/dojo/dojo.js");
this.Page.Header.Controls.Add(ctrl1);
HtmlGenericControl ctrl2 = new HtmlGenericControl("Script");
ctrl2.Attributes.Add("Type", "Text/Javascript");
ctrl2.InnerText = "dojo.require('dijit.form.ComboBox');";
this.Page.Header.Controls.Add(ctrl2);
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Jan 8, 2010
In the master page code behind I added
public ContentPlaceHolder BodyPlaceHolder
{
get { return ContentPlaceHolder1; }
}
and now, in web content form I want to add to this place holder a new ascx control in code behind.
protected void Page_Load(object sender, EventArgs e)
{
if (!User.Identity.IsAuthenticated)
{
LoginRegisterControl lrControl = new LoginRegisterControl();
Master.BodyPlaceHolder.Controls.Add(lrControl);
}
else
{
UserProfile upControl = new UserProfile();
Master.BodyPlaceHolder.Controls.Add(new Button());
}
}
and this doesn't work. If I change this to
Master.BodyPlaceHolder.Controls.Add(new Button());
It works. So the problem is with the ascx user control.
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Mar 14, 2011
How can I inherit the logion control UI in my custom ascx login control as well override it's OnAuthenticate event in my cusotm control code.
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Oct 8, 2010
I have written a web usercontrol (ascx). Inside, there is a Panel that I want to show/hide on click of a hyperlink inside the usercontrol.
Normally, this is easy just by doing something like this (the onclick attribute is added to the hyperlink on prerender):
var PanelToShow = document.getElementById('<%=PanelInvoiceHasBeenCreated.ClientID %>');
if (PanelToHide != null) {
PanelToHide.style.display = 'none';
}
but because the ascx control is held within the gridview, the above will assess all the controls (of which there are many in the gridview) with the name 'PanelInvoiceHasBeenCreated'. The only time it will work is when there is 1 row in the gridview. Currently, with my existing code, if I click the hyperlink in any row, it shows/hides the panel in the bottom row of the gridview!
Therefore, my question is how do I get the actual, unique ID I need to show/hide on the correct control in the correct row?
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Feb 25, 2010
I have a master page with a ascx control I use for a header. There is a label in HeaderControl1 I need to set from the content pages. I was able to make the changes in the master template as a tes by just calling the control and accessing the property.
HeaderControl1.txt = 234
[Code]....
[Code]....
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Jul 28, 2010
I have a question about creating and managing events inside an ascx custom web control.
I have created a very stupid control consisting in a div containing a asp:Label control, it is a very simple structure:
<div id="mydiv" runat="server">
<asp:Label id="mylabel" text="Text"... />
</div>
That is, very simple.
I would like to add an event: clicked. I want to let the user add this control on the page and attach handlers to this event so that when this control is clicked it is possible to do something. It might seem a strange solution, it's like i'm trying to invent again the button control, that is: my custom button.
Well to fire the event I would like to add a javascript in my div and call a js function that calls, using ajax mechanism, a server side function. Well how to call a server side function from here.
I posted a question about how to call a server side function from a client side one and got some answers (many of them told me to use PageMethods), well it seems that pagemethod does not work, it compiles but when running and clicking on my control and executing the js (in the line PageMethods.mymethod()) here I have an error --> Java script exception: unrecognized method. It seems not finding the PageMethod.
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Jul 22, 2010
Is it possible to emebed an ASPX page into an ASCX control ?
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Feb 2, 2011
How can I access a control on page a.aspx from a webusercontrol.ascx
I do not know the technical term used to describe this, if any,the webusercontrol.ascx page contains a button.
onclick of the button, placeholder on main page must display the "required content".
if this were on the same page no problem.
but how to access across pages?
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Sep 29, 2010
I have found a couple of good topics here in the forum and wanted to see any other extra ideas for this control that I am making and trying to implement. So here is the basic information:
The control is going to display a SQL output in a bunch of label controls. The information is going to be coming from a gridview control where the field is going to be hyperlinked.
So I am wanting to set the "TargetControlID" property to the .ascx page load event.
now what I have found is that I can simply run the Popup.show(); function in the .cs file at the end of the page load, but I still have to place a valid control within the TargetControlID property. As you know, the property cannot be "null" and if I put in the control ID for something that is not valid, then it won't work either. So the only thing I can think of is tying it back to the overall control itself. Then I can always change it on the fly if needed, but I think I would not have to since it would fire on the page_load event...
Not sure if this is making any sense... Just understand that have to make this control go across several web pages that are already fully developed. I am just adding this in as new functionality...
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May 27, 2010
I am just wondering whether it is possible to return the name of the view an ascx control is currently being rendered in? Is there an object I can use to access the name?
Basically I want the control to dynamically set certain text within itself dependant on the view it is rendered within.
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Aug 30, 2010
I'm trying to reference a string from the web.config file from a ASCX user control, but I get the error message: [b]Compiler Error Message: BC30203: Identifier expected.
My code in the user control file is as follows:
<div id="header">
<h1><%= Server.HtmlEncode(Convert.ToString(ConfigurationSettings.AppSettings["Web_Title"])) %></h1>
</div>
Do I need to import any namespaces?
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