ArgumentNull Exception in .NET Framework 4.8 "System.Security.SecurityElement.FromString(String xml)"
I get an "ArgumentNullException" from the .NET Framework 4.8, when the calling code makes a Code-Access Policy "Demand" request (attribute usage see below) The program is a WinForms application. The stack-trace is: at…
How to clear the account list in the Web Account Manager list of Accounts displayed by WAM Broker
I have a WPF desktop app that accesses an Azure WebAPI. It uses the MSAL library and when authenticating uses the WAM broker. When the list of accounts is displayed, there is an account of someone that used the computer once when I was logged on to the…
MAUI: What is the difference between GoToAsync() and PushAsync() to navigate between pages?
What is the difference exactly between using await Shell.Current.GoToAsync Route Relative/GoBack with (..) Single instance?? await Shell.Current.Navigation.PushAsync(Use NavigationPage) - similar to prism or Xamarin Forms…
How to get/read specific word from pdf or image document in ASP.NET Application
I have millions of image or pdf document...I want get some specific word from the uploaded image or pdf document...after getting this, I am going to use these in my project...All this I want in asp.net application and if any third-party tools are using,…
How to remove page navigation animation in .Net MAUI?
I am using Appshell for navigation. Appshell.Xaml.cs Routing.RegisterRoute(nameof(LoginPage), typeof(LoginPage)); In Viewmodel relay command i am call the below AppShell.Current.GoToAsync(nameof(LoginPage)); Animation is moving from left to…
Microsoft.Office.Interop.PowerPoint Load a file
Using Microsoft.Office.Interop.PowerPoint How to open file without using a path? I only have a byte array. I don't want to save the file locally because I already have the byte array and I cant save it locally since Im using outsystems. I have tried…
ErrorSystem.NullReferenceException: 'Object reference not set to an instance of an object.' Microsoft.AspNetCore.Mvc.Razor.RazorPage<TModel>.Model.get returned null.
Hello all, I really need your help. My Controller : using Hayashi.DataAccess.Data;using Hayashi.Models; using Microsoft.AspNetCore.Authorization; using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Mvc.Rendering; using…
how to solve:An unhandled exception occurred while processing the request. SqlException: The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Doctors_Users_UserId".
An unhandled exception occurred while processing the request. SqlException: The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Doctors_Users_UserId". The conflict occurred in database "Diabetes2AppDb", table…
code object is not signed at all on .net MAUI
I am trying to debug my MAUI app on a real iOS device for push notifications. I have a remote mac connection to my mac book[Sonoma 14.5], Visual Studio 2022 [Version 17.9.7], Xcode [15.2] iOS Device[17.5] and no matter what I do I get this error : code…
Maui for Android simulate backspace button action
Hello All. in my app I want to simulate backspace button action manly I want when user hold the the button pressed to delete a character in every 300 milliseconds until the button released please how I do that. Thank you.
DataGridView column alignment header vs data
In the pic below, the DataGridView column header (Column1) is misaligned with the data cell text below it (XXX). The misalignment is nearly one character width. It is more visually obvious with a larger font. The pic comes from a minimal Forms app. …
SQL Connectivity Issue From Cloud app to on-prem server
hi, I have deployed a .net core MVC app in azure app service as a webapp. I have to connect to a on-prem sql server to retrieve data. I have setup Azure relay/hybrid connection for the same. Also I have installed hybrid connection manager in on-prem…
How to make search text in ASP.NET dropdown controls
I have been developing ASP.NET application. some of the place i want searchable dropdown controls. the dropdown should search both numbers and name. How to do this...? example data as below. Cust.Name | Cust.Number Alfred K AXN29109 …
How to make fit ASP.NET page in horizontal bar when resizing the width of the page manually
I am developing ASP.NET application. sometimes user, resizing the width of the page. most of the global page (like microsoft all the pages), the page automatically fit the width based on the size of the horizontal width. How to make this. by default, the…
How to retrieve the any table from SQL DB and display dynamically in one page in asp.net core
Requirements are as below. 1. In single page of asp.net core, need to display any table data dynamically like jtable from jQuery plugin... With generic code with ado.net or web api orAPI or entity framework core
how to detect qrcode in camera in maui?
how to open camera and detect the qrcode ?
two decimal for label
Hello This is my sample code Label LRO = e.Item.FindControl("LRO") as Label; LRO.Text = roff; its should return value in something example two digit decimal 12.45 14.00 15.12 how to do so thanks
How to get specific image coordinates from within bitmap
hi Is there a special (Library/Class) for such an achievement? which can find and return the coordinates by giving a symbol of a specific image from within the larger image
.net maui grouping code throws cast error.
I'm converting a Xamarin app to .NET Maui. I'll be needing the .NET page to ( stating all desired functions in case a different grouping code is needed ) group by sector ( optional , Sort and or filter maybe added later-- I'll settle for grouping…
when export grid view have Arabic data to pdf format using JQUERY it downloaded but error open pdf failed ?
I work on asp.net app . I face issue when export grid view with data to pdf it downloaded but finally not open grid view have Arabic data when inspect browser to check error i can't found any error I work on asp.net app . I face issue when export grid…