What is the best way to implement a “timer”?

Use the Timer class. The Elapsed event will be raised every X amount of milliseconds, specified by the Interval property on the Timer object. It will call the Event Handler method you specify. In the example above, it is OnTimedEvent.

Why does var evaluate to System.Object in “foreach (var row in table.Rows)”?

That’s because the DataRowCollection class only implements the non-generic version of IEnumerable. So the compiler doesn’t know what the type of the variable is. By explicitly putting the type in there, you basically tell the compiler to generate an explicit cast from object to DataRow. This is a problem you’ll find with many of the collections and classes added back in … Read more

How to bind a model to a kendo Combobox in order to use the models validatation?

If you use Html.Kendo().ComboBoxFor() you can bind it to a model property similar to this: Note that when doing this, you don’t need the Name() or Value() properties because they will be handled when using the ComboBoxFor() This will take care of binding the control to the model and also allow you to use the validation. Also, one thing I missed in … Read more

The Object you want to instantiate is null. Unity 3D

Please don’t use Find for this! It is extremely expensive! And unreliable! This function only returns active GameObjects. If no GameObject with name can be found, null is returned. Especially since it looks like you want to use this for prefabs that only exist in the Assets and not in the Scene this will always return null as it only finds objects from the … Read more

Easiest way to alter eBay page content/DOM

I have found one solution so far so I thought it best to share it for review/improvement. Selenium allows you to extend its behavior with a user-extensions.js file. For example this creates a new insertHtml command within Selenium: For Selenium IDE usage you simply include the extensions file via the options menu of the IDE itself. … Read more

How to move 2D Object with WASD in Unity

You don’t need those if statements. Just use += to append the input to the current transform position. Move without Rigidbody: Move Object with Rigidbody2D: I suggest using the second code and moving the Rigidbody if you want to be able to detect collison later on. Note: You must assign the object to move to the obj slot in the Editor. If using … Read more

How to resolve this System.IO.FileNotFoundException

I hate to point out the obvious, but System.IO.FileNotFoundException means the program did not find the file you specified. So what you need to do is check what file your code is looking for in production. To see what file your program is looking for in production (look at the FileName property of the exception), try these … Read more