This can certainly be done with no loss of information. In both cases you end up with 32 bits of information. Whether they’re used for sign bits or not is irrelevant: int original = …; short firstHalf = (short) (original >> 16); short secondHalf = (short) (original & 0xffff); int reconstituted = (firstHalf << 16) … Read more
It’s the Null-Conditional Operator It’s a syntactic sugar for null checking: return str?.ToString(); will become if (str == null) { return null; } return str.ToString();
According to the documentation, the name must start with an @: The ParameterName is specified in the form @paramname. According to the source code (have a look at SqlCommand and SqlParameter.ParameterNameFixed in the reference source), an @ is added automatically, if needed. So yes, it works, but it’s an undocumented feature. Best practice recommends that … Read more
You (initially) marked this as c#, but show VB code. For c#: use the @ specifier: string myText = @”line 1 line 2 line 3″ Note that if you don’t want a blank line at the start of your string, make sure you put the @” on the same line as the first line of … Read more
. is a special character in regex, that matches anything. Try escaping it: MatchCollection match = Regex.Matches(entireText, @”alphabet\.”);
Assuming that you are using the DynamicQuery Helper files from the Microsoft sample library (Which are in the namespace System.Linq.Dynamic) then after reading the source code it looks like you need to specify the ordering you want as follows: myDataSource.OrderBy(“someColumnName descending”)
It seems that this post covers your question: http://msmvps.com/blogs/carlosq/archive/2011/03/15/vs-2010-sp1-changing-quot-byval-quot-vb-net-code-editor-experience.aspx So no, there is no way to get the old behaviour. From now on ByVal is the default (what it was before) and it won’t get added automatically to the method parameters. In my opinion this is a good decision since it’s making VB.NET a bit … Read more
If you have more than one RichTextBox then you can use this extension method: public static void AddContextMenu(this RichTextBox rtb) { if (rtb.ContextMenuStrip == null) { ContextMenuStrip cms = new ContextMenuStrip() { ShowImageMargin = false }; ToolStripMenuItem tsmiUndo = new ToolStripMenuItem(“Undo”); tsmiUndo.Click += (sender, e) => rtb.Undo(); cms.Items.Add(tsmiUndo); ToolStripMenuItem tsmiRedo = new ToolStripMenuItem(“Redo”); tsmiRedo.Click += … Read more
You can use AddHandler to add a handler for any event. For example, this might be: AddHandler theButton.Click, AddressOf Me.theButton_Click
There are 3 ways to do this. The first way is to construct a query manually, this is what QueryParser is doing internally. This is the most powerful way to do it, and means that you don’t have to parse the user input if you want to prevent access to some of the more exotic … Read more