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Net-Framework/c_hash_/Code-Examples Run Async Task in Sync Method 01.11.2019 45 Async Task in Sync Methode How to perform an asynchronous method within a synchronous method in C- Problem: here Async call in Sync event Async await ApplicationData Current LocalSettings Value Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code Set value in a ComboBox ComboboxItem 01.11.2019 51 Set value in a ComboBox ComboboxItem Dieses Beispiel zeigt wie man einen Eintag in einem Auswahlfeld ComboBox in UWP und WPF per XAML und per Code erstellen kann UWP, WPF, Select Feld Dropdown Auswahl In XAML You place in the ComboBox within Net-Framework/Visual-Studio/Debug Error: The file is locked by SQL Server Windows 22.06.2019 682 : "SQL Server Windows NT - 64 Bit (3912)" If you want to debug a Windows application in Visual Studio with Start, then you may receive an error message that a process is accessing the SQL Server file and therefore the application cannot be started for debugging In Visu Net-Framework/WPF/Controls-Elements/Combobox WPF Combobox: Dynamically adjust the color of rows 23.05.2019 533 Task: How to dynamically adjust the color of individual lines in a Dropdown List WPF Combobox? Solution: You can put within the WPF Combobox via Combox ItemContainerStyle-> Style ComboboxItem-> with Setter the Foreground and Background Color Net-Framework/WPF/Controls-Elements/Combobox Linq Combobox: Download dropdown list of data from a table 23.05.2019 504 Simple example of how to load a small table into a WPF combobox as data Code Example C # public void Net-Framework/WPF/Controls-Elements WPF Datagrid: Set Color of Row when it has no Focus 22.05.2019 542 WPF: Selected line without focus How to adjust the color at a datagrid when it has no focus Solution: You have to set the highlight colors instead of static colors Net-Framework/WPF/Controls-Elements WPF Datagrid: Change the Color of Selected Row 22.05.2019 778 WPF: Customize selected line How to adjust the color of the selected line and cells in WPF Solution: You have to set the style properties for DataGridRow and DataGridCell in the DataGrid Net-Framework/WPF/Controls-Elements WPF: Change Selected Row Color in DataGrid 22.05.2019 1228 WPF: Change Selected Row Color How to change the Selected line of a data grid in color? Solution For this purpose, you can customize the DataGridRow via a style Then you select the trigger on IsSelected and you can choose the background color o Net-Framework/WPF STORING WPF Data in the Database 25.03.2019 628 The following script in C #, WPF shows how to store And read SETTINGS values in a Database As usual, the Settings data of an Application As usual are changed and stored purely settings form The Difference, however, is that the Settings values are no Net-Framework/WPF/Dialogs WPF: Explorer with path open 17.03.2019 481 Open WPF application in the current work directory Installationsverzeichnis Net-Framework/WPF/Dialogs WPF: Open a Window at a position 13.01.2019 792 How do you set a WPF Window so that it is placed directly at the position or place of the mouse when opening? Solution: Net-Framework/WPF/Code-Samples WPF: Drag Drop Example 12.01.2019 2331 WPF: Drag Drop Beispiel The following C # Code example shows the simple creation of a drag and drop function in WPF In this example, a rectangular planning field (WPF button) is drawn into a planning calendar (WPF Border) With a WPF drag-and-drop ope Net-Framework/WPF/Controls-Elements WPF: Read SelectedItem from DataGrid with Dynamic As Anonymous Type 31.12.2018 1032 WPF: Read SelectedItem from DataGrid with Dynamic As Anonymous Type How to evaluate an Colo Net-Framework/WPF/Controls-Elements WPF: Elements too wide, edge Cut off 31.12.2018 507 WPF: Elements too wide, edge Cut off Problem: The input fields are not displayed correctly For at any reason, the right edge is always cut off Net-Framework/WPF/Dialogs WPF: Selection enter open and well take over with Button Elements 29.12.2018 556 WPF: Selection enter open and well take over with Button Elements This example shows that we open a WPF element a selection as a window and a selection is made from it The selection then adds a button to the inside of the first caller Net-Framework/WPF/Controls-Elements Solved: System.InvalidCastException HResult 0x80004002 in Select DataGrid 29.12.2018 898 Solved: System InvalidCastException HResult=0x80004002 Error message Net-Framework/WPF/Controls-Elements WPF: Combobox Selected Value 28.12.2018 1763 WPF: Combobox Selected Value ID ermitteln Task: How to determine the selected Wert in WPF at a Combobox Net-Framework/WPF/Entity-Framework How to add a database functionally to a WPF application 16.11.2018 1793 How to add a database functionally to a WPF application If you already have a WPF application with a local database, then you go in the Solution Explorer Add data model connection At Project-> Add-> New Item Net-Framework/Visual-Studio/Error Gelöst: One or more projects in the solution were not loaded correctly 16.11.2018 746 Gelöst: One or more projects in the solution were not loaded correctly Die Fehlermeldung dass das Projekt nicht richtig geladen werden konnte, wenn man ein Projekt über eine Solution sln Datei öffnet und das Projekt zuvor verschoben wurde Net-Framework/WinForms/Code Code: Resize Photo with Windows, Resize 14.11.2018 514 Code: Resize Photo with Windows, Resize Task: A small easy Windows C # code to downsize a photo or image to a smaller size Net-Framework/WinForms/Errors Solved: Thread must be set to Single Thread Apartment (STA) mode 14.11.2018 998 Solved: Thread must be set to Single Thread Apartment (STA) mode Problem: When using the Clipboard clipboard in an Addin Net-Framework/WPF/Controls-Elements WPF Datagrid: Column is not displayed 13.11.2018 1193 WPF Datagrid: Column is not displayed Problem: Net-Framework/Visual-Studio/Error Resolved: Error message when installing Windows software, untrusted certificate 12.11.2018 552 Resolved: Error message when installing Windows software, untrusted certificate Problem: When installing a Windows application, the following message appears saying that custom functions can not be used because of a certificate Net-Framework/ASP_dot_Net-Core/Errors Installation of .NET Core 2.1 on a web server 07.11.2018 1135 Installation of NET Core 2 1 on a web server Problem: If you upload a new web page with Asp Net Core 2 1 to a web server and try to start it, then first an error message 502 5 appears on the web server Net-Framework/Visual-Studio/Error Asp.Net Core 2.1 Error: Publish prints too many files 07.11.2018 559 Asp Net Core 2 1 Error: Publish prints too many files Problem: If you output an Asp Net Core 2 1 Web application with Publish, project files and all library runtime files will be output Subject: Upgrade Windows 10 update and Visual Studio 2017 to 2018 Q3 De&# Net-Framework/ASP_dot_Net-Core/Code-Example/Razor Asp.Net Razor: Query website URL Path 06.11.2018 479 How to query in Asp Net when calling a page where you are? Task: I would like to call the website page: Edit, that some HTML sections such as advertising are not displayed The Asp Net MVC Core Website Edit is saved as View: E Net-Framework/Visual-Studio/Error Solved: Project file is incomplete. Expected imports are missing. .Net Core 2 Project 06.11.2018 519 Solved: Project file is incomplete Expected imports are missing Net Core 2 Project When opening the Project Solution sln file with a core project, Windows 10 reports a fatal error The project file will not load at all As such, the project or the project Net-Framework/c_hash_/Basics C #: Converting a 2D Object Array to 2D String Array 30.10.2018 489 C #: Converting a 2D Object Array to 2D String Array Task: This code example in C # shows how to transform a two-dimensional object [,] array into a 2-dimensional string [,] array T Net-Framework/Controls/COM-ActiveX Create C# COM Control for Office 10.10.2018 3309 Create COM Control for Office This description shows how to create a COM Control and then use it in Microsoft Office The COM Control is created in C # in Visual Studio The description contains the base code in C # for creating a COM control The COM Control is cr Net-Framework/WPF/Code-Samples Read text from PDF using iTextSharp 10.10.2018 5541 Read text from PDF Under C # you can create a complete PDF reader with just a few lines of code For this you can integrate the Nuget Package iTextSharp small Windows program with iTextSharp in C # and WPF