C# - Microsoft Q&A

2 answers

EF Core 6 - Truncate Table

Hi, How can I use the truncate table in EF Core 6? I tried this but didn't delete rows. _oyunPalasContext.RazerReconciliation.FromSqlRaw("TRUNCATE TABLE RazerReconciliation");

asked

Cenk 666

answered

Karen Payne MVP 29,226 Microsoft MVP

2 answers

How to use C# Linq to find average value of a double list.

Hello: I have the following data: List<double[]> asks = new(); var ask1 = new[] { 4.0, 4.0 }; var ask2 = new[] { 5.0, 5.0 }; asks.Add(ask1); asks.Add(ask2); List<double[]> bids = new(); var bid1 = new[] { 3.0, 3.0 }; var bid2 = new[] { 2.0,…

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john zyd 406

answered

john zyd 406

0 answers

Best way to unit test cancellation

Good evening. I have been trying to write a unit test that will test the cancellation of a method. Now I have a unit test written that passes, but I am do not think it is what I am looking to achieve. I have tried a few different ways to achieve the…

asked

Michael Mastro II 26

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Christoph 0

0 answers

Why is the combo box cursor/caret moves to the beginning when down arrow is hit?

In my app I have a combo box <ComboBox ItemsSource="{Binding ComboItems}" SelectedItem="{Binding SelectedCBItem}" StaysOpenOnEdit="True" Text="{Binding SelectedCBItem,…

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don bradman 371

commented

don bradman 371

1 answer

filter & save to xml function doesnt work viewmodel

Hello Morning: First i read xml file to fill the datagrid edit, save the xml file, then export the datagrid to excel file using OpenXML, then read the excel file to fille the datagrid. When i jsut read the xml file, i can filter the datagrid and edit…

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Kran2022 241

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Kran2022 241

1 answer

Blazor Server - System.InvalidCastException: Unable to cast object of type 'System.Double' to type 'System.Single'.

Hi, In my Blazor server application, I am trying to get the records from RazerReconciliation table as follows. I couldn't figure out why I am getting this error. public async Task<List<RazerReconciliations>> GetOldReconsAsync() { var…

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Cenk 666

edited an answer

Viorel 82,381

1 answer

401 Unauthorized when Granting access via Azure AD App-Only

I followed this article but I modified the sample code a bit to use GetContextAsync instead of GetAzureADAppOnlyAuthenticatedContext AuthenticationManager authManager = new AuthenticationManager(clientId, certPath,certPassword,tenantId); using…

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Jack Le 0

answered

RaytheonXie_MSFT 14,226 Microsoft Employee

2 answers

CollectionView UI not updated when Switch Toggled but ObservableCollection updated

Here, when toggle, observablecollection has been updated, but ui not updated. Expected Output is: When switch toggle is on, the items pack price need to be display. When switch toggle is off, the item's price need to be display. <CollectionView…

asked

Mohanasundharam Murugan 20

answered

Mohanasundharam Murugan 20

2 answers

WPF ListBox - Display Message When Item Source Is Empty

Hello All - I am trying to replace the listbox with a message for the user when there is no data available. When there is data available, whatever is available, will display out. I have been working on this for a while but do not know what to do. When…

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bryon 101

answered

Hui Liu-MSFT 14,556 Microsoft Employee

1 answer

How to detect Windows Application Dark mode

What is the way to detect windows application dark mode setting (If it is dark or light), in a C# WPF application. Settings > Personalization > Colors > “Choose your default app mode” Screenshot from Windows 10 operating system. I am aware of…

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Deshmukh, Gaurav 30

commented

Deshmukh, Gaurav 30

3 answers

after running code , this error show i am using window 10, C#, Asp.net, Bootstrap, JavaScript, Html lang

asked

Rupa Kumari 0

answered

Albert Kallal 3,446

2 answers

C# code to check the first character in the string is an integer and then convert to hex if integer

In the input script, check the first character of the input parameter. If it is a digit value, then convert the integer to hex. For example input is 7fph7vfxbvkl then output becomes _x0037_fph7vfxbvkl .looking for a c# script for this Thank you

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Sree 0

answered

Jack J Jun 19,036 Microsoft Employee

0 answers

How do I add my company subscription Id?

Hi all, I would like to add my company Subscription ID to my subscriptions. Is that possible?

asked

Diego Contreras 0

commented

Jack J Jun 19,036 Microsoft Employee

3 answers

How to open or launch my desktop application(windows application) developed using C# in browser

I have to launch or open my desktop application developed using C# in the browser? please give me some suggestions on how to achieve it ? Thanks in advance. Explanation: I have a windows app XYZ.exe so I need to open this application from the browser. so…

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Dineshkumar.S 306

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Reza Aghaei 2,851 Microsoft MVP

1 answer

InputTransparent not working on a BoxView?

It appears the InputTransparent is not working properly? I set it to false, yet any controls underneath still receive taps. <AbsoluteLayout VerticalOptions="Fill" BackgroundColor="#5774ED"> <ActivityIndicator…

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Phunction 176

commented

Phunction 176

1 answer

using FileSystem.OpenAppPackageFileAsyn to open and play mp3 files stored on Google Drive

Hi I am using VS 2022 and C# to develop a MAUI App which needs to be deployed for IOS/Android and Windows. I would like to play audio files that are stored on Google Drive using audioPlayer. Can I use FileSystem.OpenAppPackageFileAsyn to open the file,…

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Riffy 206

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Riffy 206

1 answer

Is it possible to show a hover highlight feature while dragging and dropping in C#?

My program has this code but it isn't coming together right. I'm wondering if this is even possible. ListViewItem prevSelected = null; private void List_MouseLeave(object sender, EventArgs e) { if (prevSelected != null) …

asked

Spamzilla 41

answered

Spamzilla 41

0 answers

How to search dictionary key and find the value in C#?

Hello: I have the following Json data stored into one dictionary: public class JsonKey { public int? Index { get; set; } public string? ID { get; set; } public string? Name { get; set; } …

asked

john zyd 406

0 answers

How to use Json Data as dictionary key and find the value?

Hello: I have the following Json data stored into one dictionary: (newtonsoft.json) public class JsonKey { public int? Index { get; set; } public string? ID { get; set; } public string? Name { get; set;…

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john zyd 406

5 answers

Unable to call handler in Razor page from JQuery

I'm trying to call a handler in my Razor code behind to bind a table and it's not getting executing. CS code: public async Task<JsonResult> OnGetCarList() { var cars = await _context.GetCars.ToListAsync(); return new…

asked

TheCoder 91

commented

Karen Payne MVP 29,226 Microsoft MVP

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6,920 questions with C#-related tags

EF Core 6 - Truncate Table

How to use C# Linq to find average value of a double list.

Best way to unit test cancellation

Why is the combo box cursor/caret moves to the beginning when down arrow is hit?

filter & save to xml function doesnt work viewmodel

Blazor Server - System.InvalidCastException: Unable to cast object of type 'System.Double' to type 'System.Single'.

401 Unauthorized when Granting access via Azure AD App-Only

CollectionView UI not updated when Switch Toggled but ObservableCollection updated

WPF ListBox - Display Message When Item Source Is Empty

How to detect Windows Application Dark mode

after running code , this error show i am using window 10, C#, Asp.net, Bootstrap, JavaScript, Html lang

C# code to check the first character in the string is an integer and then convert to hex if integer

How do I add my company subscription Id?

How to open or launch my desktop application(windows application) developed using C# in browser

InputTransparent not working on a BoxView?

using FileSystem.OpenAppPackageFileAsyn to open and play mp3 files stored on Google Drive

Is it possible to show a hover highlight feature while dragging and dropping in C#?

How to search dictionary key and find the value in C#?

How to use Json Data as dictionary key and find the value?

Unable to call handler in Razor page from JQuery