asp.net Archives - Page 4 of 18

C#, Programming

IT Nursery

Problem with converting int to string in Linq to entities

var items = from c in contacts select new ListItem { Value = c.ContactId, //Cannot implicitly convert type 'int' (ContactId) to 'string' (Value). ...

May 30, 2022
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C#, Programming

IT Nursery

Has an event handler already been added?

Is there a way to tell if an event handler has been added to an object? I’m serializing a list of objects into/out ...

May 30, 2022
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ASP.NET, Programming

IT Nursery

Why does ASP.NET webforms need the Runat=”Server” attribute?

Why do I have to specify runat="server" on all my ASP.NET controls when it is a mandatory attribute and server is the only ...

May 30, 2022
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ASP.NET, Programming

IT Nursery

Difference between and ?

Every time I have to add a handler or module for ASP.NET with IIS7, the instructions always tell me to incorporate it into ...

May 30, 2022
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C#, Programming

IT Nursery

Classes residing in App_Code is not accessible

I have created a website in ASP.NET and have created a class and put it inside of the App_Code folder. However I cannot ...

May 30, 2022
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ASP.NET, Programming

IT Nursery

What is the claims in ASP .NET Identity

Can somebody please explain, what the claim mechanism means in new ASP.NET Identity Core? As I can see, there is an AspNetUserLogins table, ...

May 30, 2022
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C#, Programming

IT Nursery

Best way in asp.net to force https for an entire site?

About 6 months ago I rolled out a site where every request needed to be over https. The only way at the time ...

May 29, 2022
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ASP.NET, Programming

IT Nursery

DropDownList’s SelectedIndexChanged event not firing

I have a DropDownList object in my web page. When I click on it and select a different value, nothing happens, even though ...

May 29, 2022
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ASP.NET, Programming

IT Nursery

Unable to launch the IIS Express Web server, Failed to register URL, Access is denied

Some web projects are causing me problems while others work fine. I decided to focus on one of the problematic ones. I’m using ...

May 29, 2022
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C#, Programming

IT Nursery

Do I need a Global.asax.cs file at all if I’m using an OWIN Startup.cs class and move all configuration there?

Let’s say for example in a brand new ASP.NET MVC 5 application made from the MVC with Individual Accounts template, if I delete ...

May 29, 2022
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