WebMar 15, 2013 · If the cell value is text then the Value2 will return type string, if the cell value is number then the Value2 will return type double. if the cell is empty the return type is COM object null. so you need amend your code as follows: C# WebJul 8, 2024 · You can — and I argue should — instead: check for the empty set (i.e. use the size of the result set, maybe with .Any ()) to see if the application exists. That is substantially cleaner than converting the empty set to default and then taking the first and finally later checking that for null to see if the application of interest exists.

Checking For Empty or Null String in C# - c …

WebTo check if an given array is empty or not, we can use the built-in Array.Length property in C#. Here is an example: using System; class Check { static void Main() { int[] myArr = new int[] {}; if (myArr.Length == 0) { Console.WriteLine("array is empty"); }else{ Console.WriteLine("array is not empty"); } } } WebThis code uses the Object.prototype.toString() method to get the type of the variable str, and then checks if it is a string by comparing the result to the string "[object String]".If it is a … hair salon in vietnam

Strings - C# Programming Guide Microsoft Learn

WebOct 1, 2024 · Syntax: [string]::IsNullOrEmpty (...) Example of IsNullOrEmpty () in PowerShell $str1 = $null [string]::IsNullOrEmpty ($str1) The above code returns true which mean the string is empty. Using conditional Statement The second approach is to use a conditional statement to verify if the string is empty or null. WebJul 6, 2024 · Unfortunately, it prints Created: this happens because the string is not actually empty, but it is composed of invisible characters. The same happens with escaped … WebJul 5, 2024 · Another way to check if a string is empty is by comparing the string to an empty string. For example: let myStr = ""; if (myStr === "") { console.log ("This is an empty string!"); } As with the previous method, if we have white spaces, this … hair salon in villa rica