{"id":32751,"date":"2023-02-01T14:17:32","date_gmt":"2023-02-01T08:47:32","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-assist-me-to-define-ui-in-xaml-closed\/"},"modified":"2023-02-01T14:17:32","modified_gmt":"2023-02-01T08:47:32","slug":"solved-assist-me-to-define-ui-in-xaml-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-assist-me-to-define-ui-in-xaml-closed\/","title":{"rendered":"[Solved] Assist me to define UI in xaml [closed]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-14366819\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"14366819\" data-parentid=\"14364917\" data-score=\"0\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>The first thing is: It is in 99% of all cases the best and possible to write you UI in XAML.<\/p>\n<p>Second you should inform yourself, whats the WPF indicates and how to use the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/en.wikipedia.org\/wiki\/Model_View_ViewModel\">MVVM<\/a>. If you don&#8217;t you should stay by Windows Forms!<\/p>\n<p>So now:<\/p>\n<p>You ViewModel:<\/p>\n<pre><code>using System;\nusing System.Collections.Generic;\nusing System.Collections.ObjectModel;\nusing System.Linq;\nusing System.Text;\nusing System.Threading.Tasks;\nusing PB.Base;\n\nnamespace DynTabItems\n{\n    public class MainWindowViewModel\n    {\n        public MainWindowViewModel()\n        {\n            AddItemCommand = new DelegateCommand(AddItem, CanAddItem);\n            RemoveItemCommand = new DelegateCommand(RemoveItem, CanRemoveItem);\n        }\n\n        public DelegateCommand AddItemCommand { private set; get; }\n        public DelegateCommand RemoveItemCommand { private set; get; }\n\n        ObservableCollection&lt;MyModel&gt; _yourBehaviorClass = new ObservableCollection&lt;MyModel&gt;();\n        MyModel _selectetItem;\n\n        public MyModel SelectetItem\n        {\n            get { return _selectetItem; }\n            set { _selectetItem = value; }\n        }\n\n        public ObservableCollection&lt;MyModel&gt; YourBehaviorClass\n        {\n            get { return _yourBehaviorClass; }\n            set { _yourBehaviorClass = value; }\n        }\n\n        private void AddItem(object obj)\n        {\n            YourBehaviorClass.Add(new MyModel());\n        }\n\n        private bool CanRemoveItem(object obj)\n        {\n            return SelectetItem != null;\n        }\n\n        private bool CanAddItem(object obj)\n        {\n            return true;\n        }\n\n        private void RemoveItem(object obj)\n        {\n            YourBehaviorClass.Remove(SelectetItem);\n        }\n    }\n}\n<\/code><\/pre>\n<p>And now your XAML Code:<\/p>\n<pre><code>&lt;Window x:Class=\"DynTabItems.MainWindow\"\n                xmlns=\"http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml\/presentation\"\n                xmlns:x=\"http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml\"\n                Title=\"MainWindow\" Height=\"350\" Width=\"525\"&gt;\n    &lt;StackPanel&gt;\n        &lt;Button Content=\"Add\" Command=\"{Binding AddItemCommand}\"\/&gt;\n        &lt;Button Content=\"Remove\" Command=\"{Binding RemoveItemCommand}\"\/&gt;\n        &lt;TabControl ItemsSource=\"{Binding YourBehaviorClass}\" SelectedItem=\"{Binding SelectetItem}\"&gt;\n            &lt;TabControl.ItemContainerStyle&gt;\n                &lt;Style TargetType=\"TabItem\"&gt;\n                    &lt;Setter Property=\"Header\" Value=\"{Binding YourHeader, UpdateSourceTrigger=PropertyChanged}\"\/&gt;\n                    &lt;Setter Property=\"Content\"&gt;\n                        &lt;Setter.Value&gt;\n                            &lt;StackPanel&gt;\n                                &lt;TextBox Text=\"{Binding YourText, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}\"&gt;\n                                    &lt;ToolTipService.ToolTip&gt;\n                                        &lt;TextBlock Text=\"{Binding Error}\"\/&gt;\n                                    &lt;\/ToolTipService.ToolTip&gt;\n                                &lt;\/TextBox&gt;\n                            &lt;\/StackPanel&gt;\n                        &lt;\/Setter.Value&gt;\n                    &lt;\/Setter&gt;\n                &lt;\/Style&gt;\n            &lt;\/TabControl.ItemContainerStyle&gt; \n        &lt;\/TabControl&gt;\n    &lt;\/StackPanel&gt;\n&lt;\/Window&gt;\n<\/code><\/pre>\n<p>And last but not least MyModel:<\/p>\n<pre><code>using PB.Base;\nusing PB.Interfaces;\nusing PB.ValidationError;\nusing System;\nusing System.Collections.Generic;\nusing System.Collections.ObjectModel;\nusing System.Linq;\nusing System.Text;\nusing System.Threading.Tasks;\n\nnamespace DynTabItems\n{\n    public class MyModel : ViewModelBaseEx&lt;MyModel&gt;\n    {\n        public MyModel()\n        {\n            YourHeader = \"You header String\";\n            ListOfExistingErrors = new ObservableCollection&lt;IValidationErrorInfo&lt;MyModel&gt;&gt;();\n            ListOfExistingErrors.Add(new Error&lt;MyModel&gt;() { ErrorIndicator = \"YourText\", ErrorText = \"Your Error Text\", Predicate = s =&gt; string.IsNullOrEmpty(s.YourText) });\n        }\n\n        string _yourText;\n        string _yourHeader;\n\n        public string YourHeader\n        {\n            get { return _yourHeader; }\n            set\n            { \n                _yourHeader = value;\n                SendPropertyChanged(() =&gt; YourHeader);\n            }\n        }\n\n        public string YourText\n        {\n            get { return _yourText; }\n            set \n            { \n                _yourText = value;\n                SendPropertyChanged(() =&gt; YourText);\n            }\n        }\n\n        public override ObservableCollection&lt;IValidationErrorInfo&lt;MyModel&gt;&gt; ListOfExistingErrors\n        {\n            get;\n            set;\n        }\n    }\n}\n<\/code><\/pre>\n<p>If you need the example Project contact me.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">2<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Assist me to define UI in xaml [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] The first thing is: It is in 99% of all cases the best and possible to write you UI in XAML. Second you should inform yourself, whats the WPF indicates and how to use the MVVM. If you don&#8217;t you should stay by Windows Forms! So now: You ViewModel: using System; using System.Collections.Generic; using &#8230; <a title=\"[Solved] Assist me to define UI in xaml [closed]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-assist-me-to-define-ui-in-xaml-closed\/\" aria-label=\"More on [Solved] Assist me to define UI in xaml [closed]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,874],"class_list":["post-32751","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-wpf"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Assist me to define UI in xaml [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-assist-me-to-define-ui-in-xaml-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Assist me to define UI in xaml [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] The first thing is: It is in 99% of all cases the best and possible to write you UI in XAML. 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Second you should inform yourself, whats the WPF indicates and how to use the MVVM. If you don&#8217;t you should stay by Windows Forms! So now: You ViewModel: using System; using System.Collections.Generic; using ... 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