How to group multiple if condition in C#?

Question

Is there any better way to do this with fewer lines of code? Sometimes `FirstName` or `SecondName` or `ThirdName` values could be `null` - this code works but I want to improve the quality. ``` if (FirstName != null) { txtEngageeName.Text = FirstName.ToString() ; } if (FirstName != null && SecondName != null) { txtEngageeName.Text = FirstName.ToString() + SecondName.ToString(); } if (FirstName != null && SecondName != null && ThirdName != null) { txtEngageeName.Text = FirstName.ToString() + SecondName.ToString() + ThirdName.ToString(); } ```

Accepted Answer

You can do simple (if you really don't want spaces between entities):

```
txtEngageeName.Text = string.Format("{0}{1}{2}", FirstName, SecondName, ThirdName);
```

Nulls will be formatted as empty string.

If you need spaces.

```
txtEngageeName.Text = string.Join(" ", new[] { FirstName, SecondName, ThirdName}.Where(s => s != null));
```

How to group multiple if condition in C#?

Solution

Problem