C#

I am trying to enter a new value in my database table row using Entity Framework in my asp.net MVC application, but getting this error

Unable to update the EntitySet because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element to support the current operation.

How can I solve it, any suggestions or help? thanks

I am trying to Enable migration in Code first using Nuget package manager console command

Hello, I would like to know how can I convert UTC datetime into local (user's pc) datetime in asp.net MVC razor page using C#?

I thought .ToLocalTime() should work, but I am not getting correct result.

I wanted to remove double quotes from a string using C#, How can I do that easily and efficiently?

For Example, I have string : "-10,20", how to get output -> -10,20

I have a requirement in which I need to render/display plain text from HTML content, so I would like to know how can I do it using C#?

For example, below is my HTML code

When I am trying to upload a pdf file(10 MB) using javascript file upload in my ASP.NET MVC application, I am getting this error as below

Maximum request length exceeded

Here is the image of the error

...

I have a string "123" and another string "Test", now I want to identify from which you these string conatins number, so How can i check if string is a number or not in C#, is there any method in C# or we need to create custom method for it?

Example :

"11" = true

"Hello"= false

I am getting error 'Cannot convert null to a value type' when trying to deserialize JSON response into class object
I have the following code in C#