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+====== Int.TryParse anwenden ======
+<code Powershell>
+[int]$b = $null #used after as refence
+$b
+[int32]::TryParse($a , [ref]$b ) # test if is possible to cast and put parsed value in reference variable
+True
+$b
+$b.gettype()
+IsPublic IsSerial Name                                     BaseType
+-------- -------- ----                                     --------
+True     True     Int32                                    System.ValueType
+</code>
+[[https://stackoverflow.com/questions/9700627/in-powershell-what-is-the-idiomatic-way-of-converting-a-string-to-an-int|Quelle]]
+{{tag>[Powershell Int Int32 Int64 TryParse Parse]}}