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Test if object implements interface
...s the simplest way of testing if an object implements a given interface in C#? (Answer to this question
in Java )
12 Answ...
Convert string[] to int[] in one line of code using LINQ
...r a = arr.Select((s, i) => int.TryParse(s, out i) ? i : 0).ToArray();
C# 7.0:
var a = Array.ConvertAll(arr, s => int.TryParse(s, out var i) ? i : 0);
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Why can I initialize a List like an array in C#?
Today I was surprised to find that in C# I can do:
6 Answers
6
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How do I find out which process is locking a file using .NET?
... Process Monitor , but I would like to be able to find out in my own code (C#)
which process is locking a file.
6 Answers
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Writing to output window of Visual Studio
...or more details, please refer to these:
How to trace and debug in Visual C#
A Treatise on Using Debug and Trace classes, including Exception Handling
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Setting the filter to an OpenFileDialog to allow the typical image formats?
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Complete solution in C# is here:
private void btnSelectImage_Click(object sender, RoutedEventArgs e)
{
// Configure open file dialog box
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
dlg.Filter = "";
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Algorithm to return all combinations of k elements from n
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In C#:
public static IEnumerable<IEnumerable<T>> Combinations<T>(this IEnumerable<T> elements, int k)
{
return k == 0 ? new[] { new T[0] } :
elements.SelectMany((e, i) =>
elements.Skip(i +...
How to get first N elements of a list in C#?
...one is interested (even if the question does not ask for this version), in C# 2 would be: (I have edited the answer, following some suggestions)
myList.Sort(CLASS_FOR_COMPARER);
List<string> fiveElements = myList.GetRange(0, 5);
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How to set a default value with Html.TextBoxFor?
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value with small v is keyword for C# msdn.microsoft.com/en-us/library/x9fsa0sw.aspx. So i think thats why it doesn't work.
– Tassadaque
Sep 2 '10 at 4:36
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Anonymous method in Invoke call
...en:
this.Invoke(delegate { this.Text = "hi"; });
// or since we are using C# 3.0
this.Invoke(() => { this.Text = "hi"; });
You can of course do the same with BeginInvoke:
public static void BeginInvoke(this Control control, Action action)
{
control.BeginInvoke((Delegate)action);
}
If yo...