codebehind

ASP.Net- How to Use a Variable Defined in Code Behind File on inline code for same page..

Hi I have a page with a Textbox, a Button and a Label control. On Button_Click event , I store the value of Textbox in a variable called S using code behind. I want to show the value of S in the Lable control using inline code but not using the code behind. ? Thanks in Advance ...

WPF Bind to class member in code behind

Pretty simple question, but can't seem to find a complete answer on here... I need to databind in xaml to a property of a class member in codebehind. <Window x:Class="Main"> <customcontrol Name="View" IsChecked="{Binding ElementName=RecordProp, Path=IsViewChecked}" /> ... Where the code behind looks like: class Main { ....

CSS call from code behind not working

I have the following entries in the css file. a.intervalLinks { font-size:11px; font-weight:normal; color:#003399; text-decoration:underline; margin:0px 16px 0px 0px; } a.intervalLinks:link { text-decoration:underline; } a.intervalLinks:hover { text-decoration:none; } a.intervalLinks:visited { text-decoration:underline; } a.se...

HTML Element Not Recognised in Code-Behind

Hi Guys I just wrote this into my WebForms .aspx: <span id="GenerateChartButton" runat="server"></span> I went to the code-behind, and typed this: this.GenerateChartButton and it's not recognising that I added the span to the page. Is there something I need to do to make this happen? I have been working in MVC lately, so I haven't...

ASP.NET Thread Safety in aspx.cs code behind file

I am thinking of adding a DataContext as a member variable to my aspx.cs code-behind class for executing LinqToSql queries. Is this thread safe? I am not sure if a new instance of this code-behind class is created for each HTTP request, or if the instance is shared amongst all request threads? My fear is that I will get 10 simultaneo...

Programmatically creating a clickable area on an image.

Hi, I'm trying to create "imagemaps" on an image in wpf using codebehind. See the following XML: <Button Type="Area"> <Point X="100" Y="100"></Point> <Point X="100" Y="200"></Point> <Point X="200" Y="200"></Point> <Point X="200" Y="100"></Point> <Point X="150" Y="150"></Point> </Button> I'm trying to translate this to a but...

Create ControlTemplate programmatically in wpf

Hi, How can I programmatically set a button's template? Polygon buttonPolygon = new Polygon(); buttonPolygon.Points = buttonPointCollection; buttonPolygon.Stroke = Brushes.Yellow; buttonPolygon.StrokeThickness = 2; // create ControlTemplate based on polygon ControlTemplate template = new ControlTemplate(); template.Childeren.Add(button...

How to get record value from LinqDataSource via Code Behind

I've got a LinqDataSource that retrieves a single record. Protected Sub LinqDataSource1_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.LinqDataSourceSelectEventArgs) Handles LinqDataSource1.Selecting Dim BizForSaleDC As New DAL.BizForSaleDataContext e.Result = BizForSaleDC.bt_BizForSale_GetByID(e.WherePar...

WPF Binding to code behind methods

Hi all, This is annoying - I know how I'd do it in web... I have a wpf image and I want to bind it's source property to a method, and pass in a property from it's bound item. IE. <image source="GetMySource({binding name})" /> Where GetMySource is protected string GetMySource(string name) { return "images/"+name+".png"; } ...

Setting a "dependency property" in code

I'm on a roll today... I have the following code delaring a dependency property inside a class called ActionScreen: #region Dependency Properties & Methods public string DescriptionHeader { get { return (string)GetValue(DescriptionHeaderProperty); } set { SetValue(DescriptionHeaderProperty, value); } } // Using a DependencyPr...

How powerful is the <script> tag in ASP.NET ?

I'm new at web development with .NET, and I'm currently studying a page where I have both separated codebehinds (in my case, a .CS file associated to the ASPX file), and codebehind that is inside the ASPX file inside tags like this: <script runat="server"> //code </script> Q1:What is the main difference (besides logical matters like ...

jquery thickbox not working in 2005 ASP.NET

public void DisplayThickBox(Page page, int width, int height) { string script = "<script type='text/javascript'>"; script += "$(document).ready(function(){"; script += "tb.show('null', 'auto-insurance-redirect.aspx?keepThis=true&TB_iframe=true&height=" + height.ToString() + "&amp;width=" + width.ToString() + "...

How to change values of ListView elements in Codebehind

Hello, I'm trying to create a table with Listview and one of the fields I'm using is supposed to show a hyperlink to a more detailed view of the data shown, how I want to do that is by using FindControl on the ID of that item and then changing the value into a hyperlink of the detailed view page with a querystring attached, the problem ...

ASP.Net 3.5/4.0 CodeBehind or CodeFile?

I read through the previous post: http://stackoverflow.com/questions/73022/codefile-vs-codebehind, but I'm still confused on which I should use. It sounds like CodeFile is the newer option that should be used, yet VS2010 generates CodeBehind when creating a new Web Form. ...

How to reference the same CodeBehind class from multiple .aspx files (and be able to pre-compile the website)?

I have a set of aspx pages that each live in their own directory and reference a single aspx.cs code behind file. This has worked fine previously because I never tried to pre-compile the site. IIS must have individually compiled each aspx, linking them to the contents of App_Code but never referencing more than one aspx at a time. Now ...

Type 'xxx' is not defined, BC30002 error.

Hello, It is possible to create an instance of a C# class within a aspx.vb codebehind file? When I try this within the Page_Load event: Dim oFlow As New Flow(HttpContext.Current.Request) I get the Type 'Flow' is not defined. The Flow class itself is located here: App_Code/CSCode/Cust/Frm/Flow.cs There's no namespace associated wi...

Control within ascx is null when ascx is added from codebehind

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...

Set Page Output Cache VaryByCustom value programmatically

I want to use an Enum value for the types of VaryByCustom parameters I will support, is it possible to do this? I tried setting it in the page itself <%@ OutputCache Duration="600" VaryByParam="none" VaryByCustom='<%=VaryByCustomType.IsAuthenticated.ToString(); %>' %> But this returned the entire literal string "<%=VaryB...

Set Server Side OnClick() event Programmatically

I am looking for a way to programmatically set the OnClick event handler for a TableCell object. The ASP equivalent of what I'm trying to do will look like this: <asp:TableCell OnClick="clickHandler" runat="server">Click Me!</asp:TableCell> In the above example, "clickHandler" is a server-side function defined in the .cs CodeBehind. ...

What is the best practice for ouputting data from a collection on an ASP.net Page?

I've ported a page from classic ASP to ASP.net. Part of what happens in this page is that a collection of custom types is generated and then displayed via Response.Write() commands. I'd like to get the business logic separated out into a code behind file (and maybe move this all into a user control), but I can't seem to figure out how I'...