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How to add a database functionally to a WPF application Net-Framework/WPF/Entity-Framework
How to add a database functionally to a WPF application
16.11.2018 62
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

Gelöst: One or more projects in the solution were not loaded correctly Net-Framework/Visual-Studio/Error
Gelöst: One or more projects in the solution were not loaded correctly
16.11.2018 51
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

Code: Resize Photo with Windows, Resize Net-Framework/WinForms/Code
Code: Resize Photo with Windows, Resize
14.11.2018 49
Code: Resize Photo with Windows, Resize Task: A small easy Windows C # code to downsize a photo or image to a smaller size

Solved: Thread must be set to Single Thread Apartment (STA) mode Net-Framework/WinForms/Errors
Solved: Thread must be set to Single Thread Apartment (STA) mode
14.11.2018 39
Solved: Thread must be set to Single Thread Apartment (STA) mode Problem: When using the Clipboard clipboard in an Addin

WPF Datagrid: Column is not displayed Net-Framework/WPF/Controls-Elements
WPF Datagrid: Column is not displayed
13.11.2018 48
WPF Datagrid: Column is not displayed Problem:

Resolved: Error message when installing Windows software, untrusted certificate Net-Framework/Visual-Studio/Error
Resolved: Error message when installing Windows software, untrusted certificate
12.11.2018 45
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

Installation of .NET Core 2.1 on a web server Net-Framework/ASP_dot_Net-Core/Errors
Installation of .NET Core 2.1 on a web server
07.11.2018 73
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

Asp.Net Core 2.1 Error: Publish prints too many files Net-Framework/Visual-Studio/Error
Asp.Net Core 2.1 Error: Publish prints too many files
07.11.2018 55
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&#

Asp.Net Razor: Query website URL Path Net-Framework/ASP_dot_Net-Core/Code-Example/Razor
Asp.Net Razor: Query website URL Path
06.11.2018 47
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

Solved: Project file is incomplete. Expected imports are missing. .Net Core 2 Project Net-Framework/Visual-Studio/Error
Solved: Project file is incomplete. Expected imports are missing. .Net Core 2 Project
06.11.2018 54
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

C #: Converting a 2D Object Array to 2D String Array Net-Framework/c_hash_/Basics
C #: Converting a 2D Object Array to 2D String Array
30.10.2018 68
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

Create C# COM Control for Office Net-Framework/Controls/COM-ActiveX
Create C# COM Control for Office
10.10.2018 242
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

Read text from PDF using iTextSharp Net-Framework/WPF/Code-Samples
Read text from PDF using iTextSharp
10.10.2018 205
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

Error AggregateException: The NPM start exited without the Angular CLI was listening for requests Net-Framework/ASP_dot_Net-Core/Angular/Errors
Error AggregateException: The NPM start exited without the Angular CLI was listening for requests
03.09.2018 1198
Error AggregateException: The NPM script start exited without the Angular CLI was listening for requests Th

Angular.js SPA app under Visual Studio and Asp.Net Net-Framework/ASP_dot_Net-Core/Angular
Angular.js SPA app under Visual Studio and Asp.Net
03.09.2018 189
Angular js SPA app under Visual Studio and Asp Net How to create a simple Asp Net Core application with Angular js as frontend

Set upload of very large files in Asp.Net MVC Core 2. Net-Framework/ASP_dot_Net-Core/Errors
Set upload of very large files in Asp.Net MVC Core 2.
24.08.2018 1177
Set upload of very large files in Asp Net MVC Core 2 Problem: If you want to upload large files or videos with 200 MB or 1 5 GB in asp net core 2 1

Error: A second operation started in this context before a previous asynchronous operation completed. Net-Framework/WPF/Error-Messages
Error: A second operation started in this context before a previous asynchronous operation completed.
20.08.2018 665
Error: A second operation started in this context before a previous asynchronous operation completed Error:

Error: Can not implicitly convert type System.Threading.Tasks.Task  long to long Net-Framework/WPF/Error-Messages
Error: Can not implicitly convert type System.Threading.Tasks.Task long to long
20.08.2018 209
Error: Can not implicitly convert type 'System Threading Tasks Task ' to 'long' Not correct:

Error: The underlying provider failed on Open.EntityFramework Entity Framework Net-Framework/WPF/Entity-Framework
Error: The underlying provider failed on Open.EntityFramework Entity Framework
20.08.2018 232
Error: The underlying provider failed on Open EntityFramework Entity Framework Error message:

Send emails with WPF Net-Framework/WPF/Code-Samples
Send emails with WPF
17.08.2018 173
Send emails with WPF With the following code sample you can easily send emails in WPF applications

Expand Asp.Net Core Startup.cs with Environment Development Net-Framework/ASP_dot_Net-Core/Project-Setup
Expand Asp.Net Core Startup.cs with Environment Development
17.08.2018 171
Task: How can you build a case distinction between development state and runtime publish state in the Startup cs file in Asp Net Core project

Linq: Output to a variable list Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
Linq: Output to a variable list
16.08.2018 152
Linq: Output to a variable list How to pass the query results of a Linq query to a free list? Solution: with list and elements of type Object

Linq: Select Fields in Query Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
Linq: Select Fields in Query
16.08.2018 202
Linq: Select Fields in Query Error: object does not contain a definition for fieldname

the type or namespace name dbAppData_Context does not exist Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
the type or namespace name dbAppData_Context does not exist
10.08.2018 135
Problem: Occurs when updating the data model when updating the model at the WPF with an EF Entity Framework connection to a SQL Server database, then it may be that the connection is taken over incorrectly as a data context

Delete record in Linq Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
Delete record in Linq
10.08.2018 156
Delete record in Linq Code snippet: delete record call

Code snippet: Create Linq Select table from ID number fields Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
Code snippet: Create Linq Select table from ID number fields
10.08.2018 139
Code snippet: Create Linq Select table from ID number fields call

Evaluate Json in WPF Net-Framework/WPF/HTML-Documents
Evaluate Json in WPF
09.08.2018 185
Evaluate Json in WPF Task: I would like to evaluate a Json return from a website in WPF

Json error: A method was called at an unexpected time Net-Framework/ASP_dot_Net-Core/API
Json error: A method was called at an unexpected time
09.08.2018 212
Json error: A method was called at an unexpected time Problem: When evaluating an Api interface which returns a pure value list, the error comes that the method was called at an unexpected time Solution: When evaluating Json re

StatusCode: 405, ReasonPhrase: Method Not Allowed Net-Framework/ASP_dot_Net-Core/API
StatusCode: 405, ReasonPhrase: Method Not Allowed
09.08.2018 294
StatusCode: 405, ReasonPhrase: "Method Not Allowed" Problem: when accessing an Api-Delete interface from WPF on Asp Net Core MVC, the response StatusCode 405

httpClient Error: There is no mapped character in the multi-byte codepage for the Unicode character.  HRESULT: 0x80070459 Net-Framework/WPF/HTML-Documents
httpClient Error: There is no mapped character in the multi-byte codepage for the Unicode character. HRESULT: 0x80070459
08.08.2018 198
There is no mapped character in the multi-byte codepage for the Unicode character (Exception from HRESULT: 0x80070459) Problem: W

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