Recent questions tagged C#

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c# - Why does Thread.Sleep() behave in this way?

This is a simple code that I have written: private void button1_Click(object sender, EventArgs e) { label1.Text = ... displayed. Why is this so? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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758 views

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c# - Large black line appears when printing bmp files using the EPL2 print language

This is the 3rd part to this topic. Part 1, Part 2.. I was successfully able to print my monochrome bitmap ... anyone thinks of a better way. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - XAML Designer Window won't load for "Universal Windows" app - even in new project

I seem to recall running into this before but can't for the life of me recall how I got around it and ... System.Threading.Tasks.Task.Execute() See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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494 views

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c# - Having trouble with Process class while redirecting command prompt output to winform

I was in the market looking for a "tabbed" command prompt application, as I was sick of having multiple command ... updated on it's own thread. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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459 views

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c# - how to share a Variable between 2 form? global variable in the project

hi i want to share a variable between 2 form. 2 forms is in the one project. In fact,i want a global ... do it? Language: c# .net Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - System.Windows.Forms.Keys.HasFlag behaving weirdly

I have the following code, meant to prevent user from writing new-lines in a memo text editor: private void ... explain why is this happening? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Sorting not working with Json Result giving encoded output

I am using Json Result to show a table, it is working fine when I show the result. Now I wanted to ... customDataList.append(result.Data); }); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Cannot add an entity with a key that is already in use (LINQ)

I get this error Cannot add an entity with a key that is already in use. when I run the code below. ... (newPageObjects); _db.SubmitChanges(); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to receive a SQL-Statement as a DataTable

I have the following code: public static DataTable GetDataTable(string sConnStr, string sTable) { DataTable dt = new ... Thanks for your help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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770 views

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c# - Why does modal-form disappear completely when minimized?

I'm trying to have the owner-form minimize when the modal-form is minimized. But when I minimize the modal-form - ... do I make it appear? ) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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514 views

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c# - How to check if enterkey is pressed in a TextBox in asp.net

I have a asp.net Text Box which accepts date in the format MM/DD/YYYY. After entering the date i will hit ... only if it looses the focus. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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568 views

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c# - Trouble to open XLS file with oledb

When I try to open an xls file, I get this error : Rhe Microsoft Office Access database engine cannot open or ... server. Any idea ? Thanks, See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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553 views

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c# - How to disable Suspending || Closing || Terminating event for my Metro Style App on Windows 8 Pro

I'm a french developer and I need to develop an Metro Style app for Windows 8 Pro who is always ... more specific questions. Cordially Renaud. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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388 views

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c# - How does a struct instance's virtual method get located using its type object in heap?

below is a code example from a book to show when a value type will be boxed: internal struct Point { private ... struct's type object in heap? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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381 views

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c# - How to get checked checkbox content in windows phone app?

I am developing windows phone app .In app,I want to put multiple check box.I able to put multiple check box.But ... </Grid> Please help me ... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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446 views

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c# - How can I replace static ObservableCollection so it accesable on all windows in the MVVM way

Atm I got a class(somerandomclasss) with a static ObservableCollection: public static ObservableCollection<PersonViewModel> ... ofc :). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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664 views

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c# - System.__ComObject is returned when I use getAttribute

I am running this code: HtmlElement.GetAttribute("onClick") To try and get access to the onClick attribute of ... the actual string. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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653 views

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c# - Dynamic Object Intellisense

If dynamic resolves to object at compile time, and all .NET types extend object, why does dynamic not ... should also display object members? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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468 views

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c# - Best collection to use with type Double as key

I have this object: Public Cactus{ Public Double key; Public String value; } I have about ~100 Cactus, which all ... would be the best to use? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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541 views

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c# - BindingExpression path error

There are many similar questions and I've tried a number of answers from those questions but so far nothing helps. I ... propertyName)); } } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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525 views

1 answer

c# - JSON .NET deserialize into complex type with object key/name

I'm using Newtonsoft JSON .NET in my project for most of my API/JSON usage, and usually deserialize or convert ... way to capture the "name". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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540 views

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c# - Data Member Order and XML Deserialization

I have a RESTful WCF application that makes use of custom classes as service method parameters. These classes are ... ordering of the elements? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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515 views

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c# - Can I get a GZipStream for a file without writing to intermediate temporary storage?

Can I get a GZipStream for a file on disk without writing the entire compressed content to temporary storage? I' ... in my sample above however. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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852 views

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c# - When i get SelectedItem in combobox return System.Data.DataRowView

this is a function for retrive two field in sql to combobox : Code : public void FillCmbKala() { cmbKala. ... : str= System.Data.DataRowView See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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707 views

1 answer

c# - UnauthorizedAccessException while getting files

I am creating an application which finds duplication in files. When I search files like: try { string[] ... stops at Directory.GetFiles method. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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420 views

1 answer

c# - how to pass values from one view to another view

am very new to ASP.NET USING MVC Controllers...so here is my scenario.Am developing an Online Admission ... recently started using ASP.NET. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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489 views

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c# - Regex for number at the end of string?

I want to find out if a string ends with number (with/without decimal). If it ends, I want to extracts it ... It is single line, not multiline. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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491 views

1 answer

c# - How to use OR operator in LINQ WHERE statement

I just need an equivalent of this TSQL statement written in LINQ. Preferably in lambda statement but anything will work. ... a OR t1.Column2 = b See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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