Migrate .NET 3.1/5 WPF guide from dotnet docs (#48)

* add toc/bread changes * add xaml-services * add ported wpf content * add xaml-services info to docfx * Fix links 1 * Fix links 2 * Fix links 3 * Fix links 4 * Fix links 5 * Fix links 6 * Fix links 7 * Fix xaml-services link * Fix snippets 1 * Fix snippets 2 * adjust breadcrumb and toc * remove preserve-view from breadcrumbs * add empty view to toc item xaml * update include * remove contextual toc for vs article :(
2026-09-07 16:06:07 +02:00 · 2020-09-17 08:41:01 -07:00
parent 57747b5d52
commit 9371b0126b
220 changed files with 8961 additions and 17 deletions
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using System.Windows.Controls;
+
+namespace bindings
+{
+    // <FutureDateRule>
+    public class FutureDateRule : ValidationRule
+    {
+        public override ValidationResult Validate(object value, CultureInfo cultureInfo)
+        {
+            // Test if date is valid
+            if (DateTime.TryParse(value.ToString(), out DateTime date))
+            {
+                // Date is not in the future, fail
+                if (DateTime.Now > date)
+                    return new ValidationResult(false, "Please enter a date in the future.");
+            }
+            else
+            {
+                // Date is not a valid date, fail
+                return new ValidationResult(false, "Value is not a valid date.");
+            }
+
+            // Date is valid and in the future, pass
+            return ValidationResult.ValidResult;
+        }
+    }
+    // </FutureDateRule>
+}