Is there a way to prevent the MessageBox from breaking a string instead of just growing to the width of the string? I'm porting an old VB application and they use message boxes to present a sizable amount of data to the user. I suppose I could create a form, but I've already started down this road, and would not like to have to go back.
Thanks.
The only (supported) way to have such control over how things get laid out here is to ditch the MessageBox helper class and build a custom Form class that does what you need.
We have dealt with this issue in the past be embedding newlines (\r\n) in the text of our message. MessageBox will grow vertically to honor the wrapping text. We used to have MessageBoxs so wide you couldn't even see the centered buttons, but now they show up fine.
Depending on the complexity of generating the message text and/or whether you have control over that, this may be your simplest solution. Otherwise, I think you will need to create your own form.
For example:
MessageBox.Show("Line1\r\nLine2\r\nLine3\r\nLine4", "MessageBox test");
MessageBox.Show("Line1 Line2 Line3 Line4", "MessageBox test");
The first line creates a MessageBox with 4 lines of text and the window has grown to the correct height to show all. The second line creates a MessageBox with a single line and the appropriate width to show the whole line.
Related
I am developing an application that requires to load lots of textboxes dynamically. It may vary according to certain conditions. And each one of these textboxes' text is formatted differently: Some of them will have their text in Bold, some of them underlined, and so on. Kind of like a document.
All of these textboxes are included in a flowlayoutpanel, and this flowlayoutpanel's flow is up to down and autoscrollable. So when i scroll down the "document", everything goes blank for some reason, there are white lines and rectangles all over the textboxes and then, the application crashes.
Screenshot of the problem.
Sometimes it might throw a Generic GDI+ error exception, some others an Out of Memory exception. So I decided to try out putting all of these textboxes without the format (just the text with no bold/italic/underlined styling), and it works just fine like that.
My question is: Is there a way to prevent these type of errors without having to remove the format from the text? If not, could there be another approach to this?
I'd highly appreciate good feedback on this one.
Thanks in advance.
I'm attempting to make a command prompt clone in C# so I can get familiar with using IO. However, instead of just one text body, I created two text boxes (one for the command and another for the "parameters") and a rich text box to view the result of the commands. It may sound confusing and the title may be misleading, but I didn't know how else to word it. Anyway, my question is- how do you make only the current line editable and the rest read-only? And how would I be able to combine the commands and parameters in the two text boxes so I wouldn't need two separate text boxes? I have spent 6 days trying to figure out the logic to implement this but I got nothing.
Here's a picture of the form:
And here's what I want to make it similar to:
I'm not sure if you can do that, but if it was me, and this was a "get it done now" situation (and this is just off the top of my head), I would create a user control to contain the "screen". This user control would have the RTF or list box as the top, and a textbox flush under it.
I would remove the borders and wrap both these controls in a panel that has borders. This would simulate a single control.
The textbox would check for the enter key in one of the key-press events, and the control itself would have events that could be handled by the parent control.
This may be hacky, but it would probably be what I'd do in a last minute situation.
Oh as far as the command and parameter stuff, if you read the textbox as a single value, then split the string into an List or array, you could then define a switch or some other conditional code that would know what to do with parameters (index 1+), based on the value of the first item/index.
I need to create a usercontrol "Console".
I was faced with such problems:
If I use a TextBox, how do I prevent removal of an already recruited command?
If I use a ListBox/ListView, how do I select all the text?
Please tell me what to do from the Console.
The console should be able to complete the command (by pressing Tab), allow selection of text, and prevent the entry of already established commands.
Here is a start:
http://ansiconsole.codeplex.com
I used a bitmap, and render text to it. This way I have complete control over the input and output.
If you need some "simple" console application: insert commands, I presume in some DSL language, view result of execution, and other stuff, you can try to programm on RichTextBox base, which can give also some styling to content.
Reuse some already ready (complicated) editors, like for example:
Scintilla
And work to limit possibilities of that kind of component to fit your needs.
Regards.
You could consider deriving from the RichTextBox control, as Tigran suggested.
Depending on what you want the user to be able to do, you will have to put some logic in there that restricts what they can and cannot select. (For example, if you don't want them selecting previous commands). You can obtain the text that they've selected via the SelectedText property. And then put in your custom logic, for example, Ctrl+C will copy the text into a variable.
You may consider having a MaximumSize property so that old commands will be erased after the console becomes so large.
Winforms already has a type of Autocomplete that you could use, or simply keep a list of keywords and when the user presses TAB, fill in the first word in your list that starts with what they've already typed.
To obtain the command itself, and not any of the previous text that was entered, you will probably want to take everything from the LAST newline to the end.
The code may look something like this:
String allText = this.richTextBox1.Text; // All the text from the rich text box
Int32 lastIndex = allText.LastIndexOf("\n"); // Find the position of the last newline
String command = allText.Substring(lastIndex + 1); // Substring starting at the character after the last newline
And of course when the user presses RETURN, the command will be sent to your code and executed.
I've got a dialog box that pops up with a dynamic list of numbers, and I'd like to get the box to wrap the text because at the moment it displayed up to screen width and then cuts the rest off.
I know I can use \n to declare a new line, but the list is dynamic - it could be one item, it could be 20.
Is there any way to tell the dialog box to wrap text?
Edit: clarification + example code
I'm not using MessageBox.Show() - our code uses its own defined message box class, but the guts of it calls System.Windows.Forms.Form.ShowDialog(parent). Maybe this isn't as well-behaved (i.e., doesn't wrap) as MessageBox.Show()?
Create your own simple form and add a label. Do the wrapping there... You cannot do that much things with Dialog boxes.
In this way you have much more flexibility to show your information to the user.
Are you using the System.Windows.Forms.TextBox? It has a property WordWrap that you can set to true
No other way for a standart MessageBox. Only creating your own form.
You could programmatically format the text by restricting each line to a specific number of words then inserting a \n or Envoronment.NewLine
This is my first tryst with C#. The form that i have in mind consists
A textfield which will be supplied with the path of an executable.
A "Run" button which will call the executable(cosole app)
The executable console output should be displayed in the rich textbox.
Now when i click on a line in richtext box, i select and get the text in the line. This text maps to some other text info. I need to display this text info as a tooltip over the line.
More explanation:
The output of the exe is displayed in the text box as
Address1=Value
Address2=Value
Now when i click the line "Address1=Value", i map this text to find some info regarding what bits are set like
enable : 1
select : 0 ..etc
this info i need to display as tooltip over the line. Is such a thing possible? Is there better alternative to RTB/tooltip for this problem?
Thanks
Vivek
I would recommend using a ListBox for each string of data returned and then if you use a tooltip it makes alot more sense because you are hovering over a list item specifically not the whole text field.
Using the ListBox and items should make it alot easier to work with overall since it will be separating them into defined items instead of just appending lines to a text box.
Also I think you might have alot of work in store for you for trying to make the text box behave the way you want it to for it to treat each line differently dependent on the text of the line.
If you're using the textbox because later you want to be able to select all the output to copy and paste it I would have the textbox hidden by default and have a button that says like "Toggle Raw Output" that will show/hide the text field so users can get the text easily. While using the ListBox as the primary display for information.
What I understand from your question is that when you click on the line in the RTB, your code scans the text on that line, identifies the extra data associated with that line and then inserts it into the tooltip for the RTB.
Technically I believe that this is possible to do - although I am not 100% sure of the mechanics of inserting tooltip text. However as a user interface feature I would personally not do that as the tooltip text is displayed whenever the mouse pointer is anywhere over the RTB. Thus if a user clicks on line #1, (and sees the data associated from line #1) but hovers the mouse of line #3, they might think that the tooltip is associated with line #3.
You could alleviate my concerns with a strongly worded tooltip, but I feel that what you are doing is misusing the tooltip for something other than what it was intended to be used for. IMHO it may be that you are better off displaying your data with a tree control rather than with a RTB, as the tree control more naturally expresses the functionality that you desire (click on a node, expand it to see details etc).