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APQP/ClassProcentyValidationRule.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Globalization;
+using System.Windows.Controls;
+
+namespace Haftmittel
+{
+    public class ClassProcentyValidationRule : ValidationRule
+    {
+        public override ValidationResult Validate(object value, CultureInfo cultureInfo)
+        {
+            decimal procent = 0;
+
+            try
+            {
+                if (((string)value).Length > 0)
+                {
+                    procent = decimal.Parse((String)value);
+                }
+            }
+            catch (Exception)
+            {
+                return new ValidationResult(false, "Nieprawidłowe znaki");
+            }
+
+            if ((procent < 0) || (procent > 100))
+            {
+                return new ValidationResult(false, "Wartość powinna być z zakresu: 0 - 100");
+            }
+            else
+            {
+                return new ValidationResult(true, null);
+            }
+        }
+    }
+}