From your comment: this line DateTime Date = reader.GetDateTime(0); was throwing the exception The first column is not a valid DateTime. Most likely, you have multiple columns in your table, and you’re retrieving them all by running this query: Replace it with a query that retrieves only the two columns you’re interested in: Then try … Read more
No. Either use verbatim string literals as you have, or escape the ” using backslash. The string has not changed in either case – there is a single escaped ” in it. This is just a way to tell C# that the character is part of the string and not a string terminator.
You can do this very simply using LINQ. Make sure this using is at the top of your C# file: Then use the ToList extension method. Example:
newSession is a poor name for a Session variable. However, you just have to use the indexer as you’ve already done. If you want to improve readability you could use a property instead which can even be static. Then you can access it on the first page from the second page without an instance of it. page 1 … Read more
Normally, the entry point method for threads for WPF have the [STAThreadAttribute] set for the ThreadMethod, or have the apartment state set to STA when creating the thread using Thread.SetApartmentState(). However, this can only be set before the thread is started. If you cannot apply this attribute to the entry point of the application of thread you are performing … Read more
Use: If you have a single character string, You can also try
In my opinion the main form should be responsible for opening both child form. Here is some pseudo that explains what I would do: You will just need to create a simple event MoreClick in the first child. The main benefit of this approach is that you can replicate it as needed and you can … Read more
You can just compile (start debugging) your work with Ctrl+F5. Try it. I always do it and the console shows me my results open on it. No additional code is needed.
Use Math.Ceiling()
I know it’s possible to check whether the value of a text box or variable is numeric using try/catch statements, but IsNumeric is so much simpler. One of my current projects requires recovering values from text boxes. Unfortunately, it is written in C#. I understand that there’s a way to enable the Visual Basic IsNumeric … Read more