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PODelegate with parameters... as a parameter
 

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    <p>I have this method with its delegate that is used to append text to a multiline TextBox in the GUI from any of the threads in my WinForms application:</p> <pre><code>private delegate void TextAppendDelegate(TextBox txt, string text); public void TextAppend(TextBox txt, string text) { if(txt.InvokeRequired) txt.Invoke(new TextAppendDelegate(TextAppend), new object[] {txt, text }); else { if(txt.Lines.Length == 1000) { txt.SelectionStart = 0; txt.SelectionLength = txt.Text.IndexOf("\n", 0) + 1; txt.SelectedText = ""; } txt.AppendText(text + "\n"); txt.ScrollToCaret(); } } </code></pre> <p>It works great, I just call TextAppend(myTextBox1, "Hi Worldo!") from any thread and the GUI is updated. Now, is there some way to pass a delegate that invokes TextAppend to one of my utility methods in another project without sending any reference to the actual TextBox, something that might look like this from the caller:</p> <pre><code>Utilities.myUtilityMethod( new delegate(string str){ TextAppend(myTextBox1, str) }); </code></pre> <p>And in the callee, a definition similar to:</p> <pre><code>public static void myUtilityMethod(delegate del) { if(del != null) { del("Hi Worldo!"); } } </code></pre> <p>So that when this function is called, it invokes the TextAppend method with that string and the predefined TextBox the caller wants to use. Is this possible or am I crazy? I know there are way easier options like using interfaces or passing the TextBox and delegate, but I want to explore this solution because it seems more elegant and hides stuff from the callee. The problem is that I'm still too novice in C# and barely understand delegates, so please help me with the actual syntax that would work.</p> <p>Thanks in advance!</p>
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    1. USR. Ruiz.
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    1. COWhat version of .NET/C#?
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    2. COCan't you just move the entire TextAppend method into your utility class, then do Utility.TextAppend(MyTextbox, "foo") from the caller(s)?
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      1. USDylan Smith
    3. COA couple of questions to better understand your requirements. How are you expecting your `myUtilityMethod` to know that it has to pass a single string to your delegate? And how do you expect it to get the string to pass?
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