I've a an exe application developed using C. I want to add this as a reference to my asp.net application. But i'm getting an error which says like it's not an assembly or COM component.
I want my application to interact with the exe(which should be running) which will again respond with some appropriate message. Can we add a exe reference to a project? or is there any other way of doing without adding a reference?
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]....
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
I am using grid view as mentioned below, it is giving me error "object reference not set", but if comment allowpaging and pagesize lines, it works. let me know whats wrong I am doing?
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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.
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'm helping out a colleague on this one so if I'm missing some details that's why.We have an asp.net 3.5 web application calling a WCF service. Originally the app used a "Web Reference" to register the service however after having some trouble and burning an incident with Microsoft their solution was to replace the "Web Reference" with a "Service Reference" to the WCF service.This is great except the problem is that when we create a Service Reference, the method signatures are different than they were when a Web Reference was used.From what I've read this may be expected, however in our case this would mean some significant changes to the application and of course it was due yesterday...so......I'm wondering two things:Is it normal/expected that method signatures will change based on the reference type?Is there a way to create the Service Reference that will generate method signatures identical to the original Web Reference?
View 1 RepliesI have an dought on adding name space in project. In one one of my project I want to add "System.SserviceModel.Web" name space. But the name space is not in .net tab of refence dialog box. How can I add this reference to the .net tab window?
View 2 RepliesI followed steps of others' article about opening a outlook email window with C# After completed the code, It works perfectly fine when I tested it using Visual Studio 2008. However, When I open my website directly, it shows Error Page!
View 6 RepliesI have two CustomValidators, both of which function in the same way (call a query and check if a particular value is available in the DB), the only difference is the query itself.
Rather than writing the same function definition in the code-behind, I would like to find a way to execute a particular query depending on which CustomValidator called the function (I guess using the CustomValidator's ID) so if I have the follwing:
[Code]....
How can I check in the code behind , which validator called the function "Check"??
So I have a solution that is somewhat designed like this
|Solution
|-project DAL
|-project commons
|-project ServerSideStartUp
-public class startUp (public constructor startUp)
|-project windowsService
-service service1
Now I can reference commons from the windowsService with no problems. I can also reference serverSideStartup. When I add the reference and start typing code I even get the correct intellisence. At this point there I would have no reason for being here. Unfortunately after I build I get
Error 3 The type or namespace name 'ServerSideStartUp' could not be found (are you missing a using directive or an assembly reference?)
Which to me would say I forgot to reference it. But 2 minutes before I added the reference and was even using the intellisence to write the code.
i have following code in page load
conn = new SqlConnection();Â
conn.ConnectionString = Session["Constr"].ToString();Â
if (Session["Constr"] == null)Â {Â
Response.Redirect("index.ASPX", false);Â
}
If i navigate from index page I get the pages properly but if I directly type in the test.aspx in the url instead of navigation from index i get above error inspite of checking for is null...
my .aspx page a have this HTML element:
<table id="table7" runat="server"></table>
I want to use C# to put some rows inside ...
Of course, I chould do this:
table7.Rows.Add( ... );
But the problem is, I create the ID dynamically and I have multiple tables with IDs like "table1","table2", and so on....
string idFromDB = ... // retrieve the number from the database
string fullId = "table" + idFromDB;
HtmlTable tbl = .... get the element based on fullId .... ??????
tbl.Rows.Add( ... );
How do I reference the table element by the ID?
so you have a dropdownlist. With names of your controls in it. You pick something in your dropdownlist for example Cats. Now I want my dropdownlist to do something with a checkboxlist named Cats.
View 12 RepliesSuppose I have two webforms, the first is defined as:
Public partial class webform1 : System.Web.UI.Page
{ ... }
and the second as
public partial class
webform2: System.Web.UI.Page.
{...}
When I make a reference from webform2 to webform1, such as
If (PreviousPage is webform1) {
}
I get an error, it says that webform1 doesn't exist.
Aren't all public webforms really public? how do I do it?
I have a user control with the following in the ascx page: <asp:TextBox ID="TextBox" runat="server /> And in the codebehind page, I have the following (Height and Width are public properties):
[Code]....
However, I'm getting a "object reference not set to an instance of an object" every time this method runs, and when debugging, it seems that TextBox is still null, even at the PreRender stage.
i tried adding reference of system.windows.forms dll to my web site. But it is not getting added. If i add a reference of a dll of another project inside the assembly that gets added. Is it not possible to add reference of a system dll in website?
View 1 RepliesHow to add AxMSTSCLib reference in ASP.NET Web Application.
I added reference to "Microsoft Terminal Services Control Type Library", it adds only MSTSCLib.
I am getting this error (Object Reference Not Set To An Instance) when trying to add a new record to a gridview. Kindly have a look and suggest what could be the problem here:
The Code:protected void Button1_Click(object sender, EventArgs e)
{
BeginAdd();
[code]....
I get the error in string order_code defination line.
how user controls can communicate with each other within an asp.net application. I am facing many obstacles at the moment regarding this problem. For example, is it possible to set the visible property of a panel on one user control based on what happens in another?
Another example would be: Can I set the text of a label in one control to be the value of some other property from another control's class like.... Me.PreContentColumn.ColumnID = LocalProduct.PreContentColumnId.