c#-4.0

Visual Studio remote debugging on application startup

放肆的年华 提交于 2020-08-24 05:04:22
问题 As I understand it now, the only way to use the remote debugger is to start the target application, and then attach to it through Visual Studio. Is there a way to capture all of the breakpoints from the very beginning of the program? There is code within my program that I need to debug, and I can never get the debugger attached fast enough to capture that executing code. 回答1: If you can change the code, try injecting this line of code in the starting point of your app: System.Diagnostics

Unable to cast object of type 'Newtonsoft.Json.Linq.JArray' to type 'System.Collections.Generic.List`

心不动则不痛 提交于 2020-08-22 05:29:13
问题 l am reading data from webservice. The json object looks like: var goldString = [ { "date":"20151109", "day":30, "month":"November", "year":2015, "club":9, "clubName":"Flamingo", "itw":"XYD", "races":{ "1":{ "race":1, "time":"12:20", "raceStatus":"Undecided", "reference":91, "name":"WELCOME TO FLAMINGO PARK MAIDEN PLATE", "description":"For Maidens", "distance":1000, "stake":"R46,000", "stakes":"1st: R28,750 | 2nd: R9,200 | 3rd: R4,600 | 4th: R2,300 | 5th: R1,150", "surface":"Sand", "going":"

What is the entry point of a WPF application?

旧街凉风 提交于 2020-08-21 05:50:28
问题 The Main method is the entry point of a C# console application. Thus, for example, if I have to start some threads or services, I will do it within the Main method. I do not see the Main method inside a WPF project, so what is the entry point of a WPF application? If I have to start some threads or services, where should write the code for starting them? UPDATE: this answer summarizes the available solutions, but what are the pros and cons of each solution? 回答1: Your main entry point is an

What will Garbage Collector will do in this case? [duplicate]

大憨熊 提交于 2020-08-20 08:04:27
问题 This question already has answers here : Does the CLR garbage collection methodology mean it's safe to throw circular object references around? (2 answers) Closed 26 days ago . There are two scenario that i trying to understand how will GC will act 1- There is two object - object1 and object2 object1 has reference on object2 and object2 has reference on object1 Now, both of those object are not in use and GC can collect them. What will happened ? does GC skip on this collection ? ? 2- Same

Display Text for Enum [duplicate]

微笑、不失礼 提交于 2020-07-30 02:40:10
问题 This question already has answers here : String to enum conversion in C# (8 answers) C# using numbers in an enum (7 answers) Closed 7 years ago . HI I have the following enum public enum Priority : byte { A=1, B+ = 2, B=4, C=8, D=16, E=32 } I want to add B+ in the enum but it is giving me error 回答1: You can add user friendly description for enum like below : enum MyEnum { [Description("This is black")] Black, [Description("This is white")] White } Ref. Link : How to have userfriendly names

GridEx Item population on the fly

旧巷老猫 提交于 2020-07-23 06:22:19
问题 We are using the GridEx to populate the table/dropdown contents in our C# application. We have the following scenario: COL1 COL2 Dropdown Value Whenever we are selecting an Item from the "Dropdown" the corresponding "Value" should get displayed on the fly. Currently when we select the "Dropdown" item and navigate to "Value" then only the Value is getting displayed that is because the EndCustmEdit event gets triggered only when we are navigating to next field. I need to have the "Value"

GridEx Item population on the fly

这一生的挚爱 提交于 2020-07-23 06:20:37
问题 We are using the GridEx to populate the table/dropdown contents in our C# application. We have the following scenario: COL1 COL2 Dropdown Value Whenever we are selecting an Item from the "Dropdown" the corresponding "Value" should get displayed on the fly. Currently when we select the "Dropdown" item and navigate to "Value" then only the Value is getting displayed that is because the EndCustmEdit event gets triggered only when we are navigating to next field. I need to have the "Value"

Append rich formatted text from 2 RichTextboxes into another RichTextBox in C#

喜欢而已 提交于 2020-07-22 10:30:05
问题 I have 3 RichTextBoxes: richTextBox1, richTextBox2 and richTextBox3. I run the app and enter text into textbox 1 and 2. So the text for richTextBox1 is "Test" and for richTextBox2 is "ing". I now want to append that text together and put it into another richTextBox (preserving any formatting like bold, underlining, etc...) So I try the following code: richTextBox3.Rtf = richTextBox1.Rtf + richTextBox2.Rtf; This doesn't cause any error but I only get the text from richTextBox1. So I get "Test"

How to Join In LiteDb

不羁的心 提交于 2020-07-22 09:33:24
问题 How can i join between two table in LiteDb Like SQL Example : I Have Two table User and ActivityLog Here is the Model public class ActivityLog { [BsonId] public int Id { get; set; } public string UserId { get; set; } public string Action { get; set; } public DateTime ActionDateTime { get; set; } } public class User { [BsonId] public int Id { get; set; } public string UserId { get; set; } public string UserName { get; set; } public DateTime LoginDate { get; set; } } I need to join Activity

(Ffmpeg) How to play live audio in the browser from received UDP packets using Ffmpeg?

筅森魡賤 提交于 2020-06-29 05:20:33
问题 I have .NET Core console application which acts as UDP Server and UDP Client UDP client by receiving audio packet. UDP server, by sending each received packet. Here's a sample code of the console app: static UdpClient udpListener = new UdpClient(); static IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("192.168.1.230"), 6980); static IAudioSender audioSender = new UdpAudioSender(new IPEndPoint(IPAddress.Parse("192.168.1.230"), 65535)); static void Main(string[] args) { udpListener.Client