I have an aspx-Page with an int in Codebehind:private const int id = 11;And in Markup I have
<asp:SqlDataSource ID="SqlDataSource" runat="server"
SelectCommand="SELECT Name FROM [StatusOption] WHERE StatusId = 11">
I would like to reference the id from codebehind in the markup, so that I only have to change it in codebehind when necessary. Is it possible and how.
I was having a discussion with a co worker about some controls I implemented. He objected to my use of dynamicly instantiating controls in the code behind, because it will be slower than specifying the control in the markup. I thought he was talking about output cacheing which to my understanding only caches the rendered output of a page not the instantiated Page object. He said no its a different type of caching. Unfortunately he was unable to give me any documentation to backup the claim so I am wondering if anyone here has ever hear of any such type of caching, and if so is there any documentation on it that I can refer to.
View 5 Replies"Object reference not set to an instance of an object." How to solve this kind of errors. In my application,am using C#.Net as codebehind,ASP.Net as front,VS2008(frmwrk3.5). Usually what i'd do to solve this error is thatr i will clr my cache & Tempdatas in my browser.After that my prg will run good.But its not a professinal way right?. error comes after this line
"DataSet DS = (DataSet1)Session["Content"];
DataTable DT = DS.Tables[0];"
I'm trying to call ScriptManager.RegisterStartupScript from page "A" so that when page "B" loads it displays an alert, but can't figure out how to get a reference to page "B" to satisfy the Control argument in the method call.
I figure there's got to be something similar to Page.FindControl() that does this, but I'm stuck...
I am trying to call web reference "A" in an application.
The web reference "A" will then call a function in another web reference "B" through HTTPS connection (require certificate).
Then I keep getting the following error:
An unhandled exception of type 'System.Web.Services.Protocols.SoapException' occurred in System.Web.Services.dll
When you use ASP.NET web site (instead of web application model) and add reference to an assembly from local folder, Visual Studio, it seems, understands that this local assembly is also in GAC and so does NOT copy this assembly to bin folder (as it does with non-GAC assemblies), but simply adds new record in web.config file.
Why such a behaviour? Is it possible to force copy to bin folder (I need this since .dll is not on target environment)? I can add assembly to bin folder as file and it will work, but in this case bin folder contents will be in source control, which is not good.
I am working on converting a project from C# to VB and am facing this weird issue. 1 page cannot compile and I get the reference error, but the weird thing is that the compiler shows the error as coming from ASP.NET generated code. Visual Studio shows me that error is coming from my ASPX page. I cannot seem to figure out why or where this error is occuring. Also if I take the inherits attribute out I don't get the compilation error. The code in aspx page is below:
[Code]....
I am using VS2005, and a newbie at table adapters, DAL & BLL. I have a single dataset (in DAL) and 2 classes (in BLL) named Class1.vb and Class2.vb.
When I try to call a function from Class1 within Class2 I get the error "Reference to a non-shared member requires an object reference".
Here is a sketch of my code structure:
[Code]....
I have a Web service which, when updated on one computer with VS2008 works perfectly fine, but on another computer does not. The critical difference is the contents of the auto-generated Reference.cs.
In the correctly functioning environment, the methods have fully qualified class names, refering to classes in a class library. However, in the problem environment, the class names are unqualified and partial classes are declared near the end of the file. E.g.
[code]....
The code is under source control. Checking out to the working environment works straight away, checking out to the problem environment will only work if the reference.cs is manually edited to be like the working environments. Transferring the project manually from problem environment to the working one only requires an "Update Web Reference" to be performed to allow compilation. Both Reference.cs files claim to be auto-generated by the same tool version. The settings from the good environment have been exported to the other. No success so far...
I have a url like this:
http://www.somepage.com/main.aspx. In this page, when I click on a link it takes me to a page
http://www.somepage.com/cental.aspx?cid=200. So in the cental.aspx.cs page I did the following in the page load:
if(request.querystring["comp"].tostring() != null)
{
//do some thing [code].....
So I got an error like: object reference not set to an instance of reference.My problem is, I am using the same page. So when I go from some page, I will have "comp". but other times not. So when there is no "comp", how do I handle it in request.querystring?
I do not receive this error when I open my website application in vs 2005. When I open in vs 2008, I get this error. What gives?
These lines are underlined in blue:
[Code]....
Businesslogic area is imported into each of 3 pages with this line.
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]....
Using VS2008, I noticed that in Class Project I only have a choice of adding "service reference" where as in Web Application project, I have two choices "web reference" and "service reference".
I have used web reference. How is "service reference" different from web ref? and what's the major purpose of service ref?
I have been trying to figure out how to use the Routing features with ASP.net 4.0 WebForms. I added a route to my route collection:
void Application_Start()
{
RegisterRoutes(RouteTable.Routes);
}
void RegisterRoutes(RouteCollection routes)
{
routes.MapPageRoute(
"about-route",
"about/",
"~/About.aspx"
);
}
In my master page I tried to do the following: <asp:HyperLink ID="asdf" runat="server" NavigateUrl='<%= GetRouteUrl("about-route", new {}) %>'>Test</asdf> I got a compiler error: Server tags cannot contain <% ... %> constructs. What is the proper way to create a route URL in a server control in Web Forms? I also need to include it in the following:
<asp:Menu ID="NavigationMenu" runat="server" CssClass="menu" EnableViewState="false" IncludeStyleBlock="false" Orientation="Horizontal">
<Items>
<asp:MenuItem NavigateUrl="ROUTE HERE" Text="Home"/>
<asp:MenuItem NavigateUrl="ROUTE HERE" Text="About"/>
</Items>
</asp:Menu>
Morning all I have frequently used the old
<asp:Label ID="lblWas" runat="server" Text='<%# XPath("FACEVALUE") %>'></asp:Label>
This type of thing. when I first came across it I loved it, i'm using it again today but not quite so simply. I have a number of extra things I would like to achieve.
Apply formatting to the value. Like Text='<%# string.Format(XPath("FACEVALUE"), "{0:c}") %>'>
<asp:LinkButton ID="lnkBook" runat="server" PostBackUrl='/THEATRE/' + XPath("FACEVALUE")>Book</asp:LinkButton>
For option number 2 the URL is not as I would expect, and for number 1 I cannot get the syntax correct if it's even possible.
I have not been able to find something suitable in google. Hopefully what I am trying to achieve is obvious from the example :)
I have an assembly called like X.Common.DLL. There is some resources files for multilanguage app. Let's say it Language.resx Language.en-US.resx....etc.... I have a web application which contains this above dll as reference... So how can I use this resources file in my web applications markup side?
Text="<%$ Resources:Class, ResourceKey %>" is not valid because of "Class" name is in another assembly...
How would it be possible to set text of ASP.NET LinkButton like below:
<asp:LinkButton id="LinkButton_Select" runat="server" Text='
<p><%# DataBinder.Eval(Container.DataItem, "Start")%></p>
<p><%# DataBinder.Eval(Container.DataItem, "End")%></p>
'/>
Let's say I have an a .ascx user control. How do I get its HTML markup into a string?
View 5 RepliesIve got problem with intellisense in markup for example:
When I type
<dxwgv:ASPxGridView ID="grid" runat="server">
<Columns>
< -- here I hit ctrl + space and only normla html tags are shown: a, abbr ... --
But I would like to have available columns instead :/
</Columns>
</ dxwgv:ASPxGridView>
I have a DropDownList in a template column of a GridView control. The GridView is bound to a list of objects. Each object has a property of type int which corresponds to a value in one of the DropDownLists ListItems. I could set the selected item programatically by adding a DataBind event to the drop down, but I'm wondering if there's a way to set the selected item by using a code block in the aspx markup.
View 3 RepliesThe purpose of the code associated with the Global.asax is to hold functionality to respond to various application-level events.
But why is there a markup file associated with the Global.asax.cs? I presume this is an ASP.NET implementation side effect?
Is it possible to do things in a PHPish way in ASP.Net? I've seen <%= %> but I've tried it and couldn't get it to work. The PHPish equivalent of what I want to do is
<script src="<?php echo ResolveUrl("jquery/js/jquery.js"); ?>"></script>
I have a field in my SQL database that contains HTML markup from the HTMLEditor control in the AjaxControlToolkit. When I use the Report Viewer and SQL Reporting Services to display this field in a report, the field is displayed using the tags. I would either like to hide the tags completely or render them so that they format the text appropriately, rather than the tags be displayed as a load of <p>, <br>, <strong> tags etc. I've searched around and tried out a few different articles but haven't yet had any success.
View 7 RepliesI've been assigned changes to make to an ASP.NET project. The WebForm I'm working on needs to dynamically display and hide controls in response to user actions.
So far, so good. My approach would be to create a little JavaScript. However, on this page, the markup is part of a template for a Telerik control (which I know nothing about). I'm not sure the ramifications of this. Can I still use JavaScript for templated markup?
I tried to insert some existing JavaScript in the page. The first problem I have is my use of <%= ControlName.ClientID %>, which produces an error because the name of the control in the template is not seen to exist by ASP.NET.
Is there another way to do this, or am I just going to run into more problems?
What is the Best way to write my own HTML from code behind?
i currently use this :
<asp:Literal ID="ltr" runat="server"></asp:Literal>
and from code behind :
ltr.Text = "<p class="specific-class"></p>";
is it a right to do something like this?