I have a Windows Forms project that sets button text based on variables. The font is quite large for readability, but it means that some words are too long to fit in the button nicely, and the last few characters break onto multiple lines.
Is there an algorithm or property I can use to resize the text inside the button to prevent this from happening?
I don't want to try to fit the text on one line, I just want to stop the text from splitting words up.
If you really want to resize the font, you could try to detect when the text has reached the bounds of the button and then reduce the font size. Here's some code to get you started, but I'm not sure how to determine the length where text will start wrapping based on the button width. Perhaps there's some other property for that which I couldn't find.
// Get some info from the button control
var graphics = button1.CreateGraphics();
var font = button1.Font;
var textWidth = graphics.MeasureString(button1.Text, font).Width;
// Not sure what the magic formula is to determine when the word wraps
if (textWidth > button1.Width - 25)
{
// Assign a new font based on the old one, but smaller
button1.Font = new Font(font.FontFamily, font.Size - 1,
font.Style, GraphicsUnit.Pixel);
}
Set the AutoSize of the button to "false":
Button1.AutoSize = "false"
white-space: -moz-pre-wrap; /* Firefox */
white-space: -o-pre-wrap; /* Opera */
white-space: pre-wrap; /* Chrome */
word-wrap: break-word; /* IE */
I am not sure, but there should not be any algorithm which can help you here (even AI algorithms). Constraint is you want to keep font size and button size same. However you can do following which could solve your problem.
Use abbreviated text. e.g. First few words(characters)/ Initials of text. Generally contacts list on android mobiles, skype, or any other communicator shows initials if avatar is not set.
Show some part of text on button and when mouse hovers then show full text by resizing the button or on tooltip.
Add some space on form which will show full text when mouse is hovered on any button on it. So a common label on form which will show full button text when mouse is hovered on any button.
If texts are fixed/static then introduce some icons on button instead of text and show full text as tooltip.
~Nilesh
I have a button on a C# Windows Form form, and want to show an image and some text, side by side, and centered on the button. I tried aligning the image to the left and the text to the right, and I'm getting this (the periods are spaces):
|[IMAGE}.................Text|
But I want this:
|........[IMAGE] Text........|
My code looks like this:
btnChangeStatus.Text = "Change status to SUPPRESSED";
btnChangeStatus.TextAlign = ContentAlignment.MiddleRight;
btnChangeStatus.Image=Image.FromFile(#"J:\nomail.gif");
btnChangeStatus.ImageAlign = ContentAlignment.MiddleLeft;
I've searched here, and found lots of stuff for Java or HTML, but nothing for C#. Any ideas?
Thanks!
Set TextImageRelation to TextImageRelation.ImageBeforeText:
btnChangeStatus.TextImageRelation = TextImageRelation.ImageBeforeText;
btnChangeStatus.TextAlign = ContentAlignment.MiddleCenter;
btnChangeStatus.ImageAlign = ContentAlignment.MiddleCenter;
Specifies that the image is displayed horizontally before the text of a control.
UPDATE: You are right, though it sounds like this should do what you want, it's still a little to the left.
I tried around a little and using
btnChangeStatus.TextImageRelation = TextImageRelation.ImageBeforeText;
btnChangeStatus.TextAlign = ContentAlignment.MiddleRight; // <- right here
btnChangeStatus.ImageAlign = ContentAlignment.MiddleCenter;
leads to the desired result, but I can't tell why the button behaves like that.
I have a RichTextBox in a WPF application that serves as an output container for status updates. Each line added is colored based on it's informational level (warning-yellow, info-gray and so on).
Paragraph currentStatus = new Paragraph(new Run("ERROR: Couldn't find stuffs."));
currentStatus.Foreground = System.Windows.Media.Brushes.Red;
List myList = new List();
myList.ListItems.Add(new ListItem(currentStatus));
rtbStatus.Document.Blocks.Add(myList); // existing rich textbox
Though it is technically working, after hours of digging I still have a few formatting problems I can't seem to over-come or research out:
I want the list to be inverted, with the most recent 'post' at the top. I have been able to achieve this a couple of different ways, but each at a cost of losing the previous color formatting to the default foreground color of the control (the app has a visual buffer of about 10 lines when spacing is ideal that needs to retain the color applied).
I want the line spacing to be normal, w/o padding between lines. There is enough room for almost 2 more lines between each 'post' when using a list and I am looking for something resembling a textblock's multi-line spacing (see screen linkage below).
I'd love to get rid of the bullet points if a list is the way to go.
A couple notes: This all has to be done on the back-end, and I would like to look at a smooth auto-scrolling animation as a future feature release, though I haven't researched it yet (off-thread topic).
Now, everything I am reading leads me to believe a richTextBox>flowDocument>list is my best solution as I couldn't figure out how leverage the AppendText() method with a line break (environment.NewLine works, but has an even greater amount of padding between lines) nor work out the color dynamics when using other controls, but I am a novice in the C# world.
Please tell me if I am doing this the hard way first and foremost. But if anyone has ideas on how to achieve the above it'd be greatly appreciated.
Image of the above syntax:
Image of the desired spacing results using textblock:
Thanks in advance.
I found some properties that allowed me to accomplish this, so I removed the list and after some tweaking came up with the below:
// Status Update
public void UpdateStatus(string eventLevel, string message)
{
Paragraph currentStatus = new Paragraph(new Run(message));
if (eventLevel == "info")
currentStatus.Foreground = System.Windows.Media.Brushes.Gray;
if (eventLevel == "warning")
currentStatus.Foreground = System.Windows.Media.Brushes.Yellow;
if (eventLevel == "error")
currentStatus.Foreground = System.Windows.Media.Brushes.Red;
if (eventLevel == "highlight")
currentStatus.Foreground = System.Windows.Media.Brushes.CornflowerBlue;
currentStatus.LineHeight = 1;
rtbStatus.Document.Blocks.InsertBefore(rtbStatus.Document.Blocks.FirstBlock, currentStatus);
}
and can now append colored lines to the 'top' with a minimal line space:
UpdateStatus("error", "My custom error message");
I want to add a horizontal line to the RichTextBox as a delimiter of my text.
I've found some examples of RTF code implementing a line and tried them in that way:
rtbResFile.Rtf = #"{\rtf1{\pard some text.\par}{\pard \brdrb \brdrs \brdrw10 \brsp20 \par}{\pard \par}{\pard some other text.\par}}";
This way implements creating a blank paragraph with border, so that should looks like a line. However it doesn't show anything. Just a blank paragraph.
Even if I try to implement it in the way include line object
{\rtf1
{\pard some text.\par}
{\pard {\*\do\dobxcolumn\dobypara\dodhgt
\dpline\dpxsize9200\dplinesolid\dplinew30}\par}
{\pard some other text.\par}
}
It still shows nothing. Does RichTextBox supports this? Or any other ways include the horizontal line in the rtf string?
There are a few different ways to create a horizontal line in RTF. Depending on the control or program being used your mileage may vary. RTF implementations in controls and programs tend to simply ignore markup that they don't know how to deal with. Note that the code samples below are snippets and not complete RTF documents. They will need to be embedded in a valid RTF document to work.
By drawing polygons:
{\pard{\*\do
\dobxcolumn \dobypara \dodhgt7200
\dpline \dpptx0 \dppty0 \dpptx7200
\dppty0 \dpx0 \dpy0 \dpxsize7200
\dpysize0 \dplinew15
\dplinecor0 \dplinecog0 \dplinecob0 }\par}
By inserting a blank paragraph with a border followed by another blank paragraph without a border:
{\pard \brdrb \brdrs \brdrw10 \brsp20 \par}
{\pard\par}
You can change the size and apparent positionof the line by setting indents on the paragraph:
{\pard \li2268 \ri567
\brdrb \brdrs \brdrw10 \brsp20 \par}
{\pard\par}
I highly recommend O'Reilly's RTF Pocket Guide for working with this stuff, which is where this came from.
Some further experimentation produced the code below, which does work in WordPad and the RichTextBox control.
{\pict\wmetafile8\picw26\pich26\picwgoal20000\pichgoal15
0100090000035000000000002700000000000400000003010800050000000b0200000000050000
000c0202000200030000001e000400000007010400040000000701040027000000410b2000cc00
010001000000000001000100000000002800000001000000010000000100010000000000000000
000000000000000000000000000000000000000000ffffff00000000ff040000002701ffff0300
00000000
}
Basically, it involves inserting a 1x1 pixel image of a black dot and stretching it as needed by adjusting the height and width goals. The goal measurement is in twips. A twip is defined as being 1/1440 of an inch. It's a horrible hack, but it works.
Here is an example of the last snippet placed into a complete, valid RTF document that correctly displays on both WordPad and the RichTextBox control from Windows Forms:
{\rtf1\ansi\ansicpg1252\deff0\nouicompat\deflang1033{\fonttbl{\f0\fnil\fcharset0 Calibri;}}
{\*\generator Riched20 10.0.19041}\viewkind4\uc1
\pard\sa200\sl276\slmult1\f0\fs22\lang9 Above\par
{\pict\wmetafile8\picw26\pich26\picwgoal20000\pichgoal15
0100090000035000000000002700000000000400000003010800050000000b0200000000050000
000c0202000200030000001e000400000007010400040000000701040027000000410b2000cc00
010001000000000001000100000000002800000001000000010000000100010000000000000000
000000000000000000000000000000000000000000ffffff00000000ff040000002701ffff0300
00000000
}
\par
Below\par
}
This function creates a horizontal bar that's just a picture. To create this picture, I just copied a horizontal bar from Visio into an RTF textbox, and then viewed the underlying RTF. Thus, it's possible to insert any image in this manner.
The code below works by moving the cursor to the very end of the text, then setting the "selected" RTF to be the aforementioned bar image. The text is then unselected.
The code sets this bar to be centered, however by setting the centreText to an empty string (or just removing the code), left alignment will be maintained.
/// <summary>
/// Appends a horizontal bar at the end of the specified Rich Text Box
/// </summary>
/// <param name="rtb">Rich Text Box to which horizontal bar is to be added</param>
private void AppendHorizontalBar(RichTextBox rtb)
{
// Position cursor at end of text
rtb.Select(rtb.TextLength, 0);
int selStart = rtb.TextLength;
int selEnd = rtb.TextLength;
// Textbox may transform chars, so (end-start) != text.Length
rtb.Select(selStart, selEnd - selStart);
// This is the RTF section to add.
string horizontalBarRtf = #"{\pict\wmetafile8\picw12777\pich117\picwgoal7245\pichgoal60 0100090000035b00000004000800000000000400000003010800050000000b0200000000050000000c022100280e030000001e0008000000fa0200000300000000008000040000002d01000007000000fc020100000000000000040000002d010100080000002503020011001100170e110008000000fa0200000000000000000000040000002d01020007000000fc020000ffffff000000040000002d01030004000000f0010000040000002701ffff030000000000}";
string centreText = "\\pard\\qc"; // set this to empty string to keep existing text alignment
// Wrap to-add RTF section in RTF tag
rtb.SelectedRtf = String.Format("{{\\rtf1\\ansi\\ansicpg1252\\deff0\\deflang1033\\uc1 {0} {1} \\line}}", centreText, horizontalBarRtf);
// Leave no text selected
rtb.SelectionLength = 0;
}
I'm looking for a way to display multiple colors in a single C#/.NET label. E.g the label is displaying a series of csv separated values that each take on a color depending on a bucket they fall into. I would prefer not to use multiple labels, as the values are variable length and I don't want to play with dynamic layouts. Is there a native support for this?
There is no native control in .NET that does this. Your best bet is to write your own UserControl (call it RainbowLabel or something). Normally you would have a custom label control inherit directly from Label, but since you can't get multi-colored text in one label, you would just inherit from UserControl.
For rendering the text, your UserControl could split the text on commas and then dynamically load a differently-colored Label for each chunk. A better way, however, would be to render the text directly onto your UserControl using the DrawString and MeasureString methods in the Graphics namespace.
Writing UserControls in .NET is really not difficult, and this kind of unusual problem is exactly what custom UserControls are for.
Update: here's a simple method you can use for rendering the multi-colored text on a PictureBox:
public void RenderRainbowText(string Text, PictureBox pb)
{
// PictureBox needs an image to draw on
pb.Image = new Bitmap(pb.Width, pb.Height);
using (Graphics g = Graphics.FromImage(pb.Image))
{
// create all-white background for drawing
SolidBrush brush = new SolidBrush(Color.White);
g.FillRectangle(brush, 0, 0,
pb.Image.Width, pb.Image.Height);
// draw comma-delimited elements in multiple colors
string[] chunks = Text.Split(',');
brush = new SolidBrush(Color.Black);
SolidBrush[] brushes = new SolidBrush[] {
new SolidBrush(Color.Red),
new SolidBrush(Color.Green),
new SolidBrush(Color.Blue),
new SolidBrush(Color.Purple) };
float x = 0;
for (int i = 0; i < chunks.Length; i++)
{
// draw text in whatever color
g.DrawString(chunks[i], pb.Font, brushes[i], x, 0);
// measure text and advance x
x += (g.MeasureString(chunks[i], pb.Font)).Width;
// draw the comma back in, in black
if (i < (chunks.Length - 1))
{
g.DrawString(",", pb.Font, brush, x, 0);
x += (g.MeasureString(",", pb.Font)).Width;
}
}
}
}
Obviously this will break if you have more than 4 comma-delimited elements in your text, but you get the idea. Also, there appears to be a small glitch in MeasureString that makes it return a width that is a couple pixels wider than necessary, so the multi-colored string appears stretched out - you might want to tweak that part.
It should be straightforward to modify this code for a UserControl.
Note: TextRenderer is a better class to use for drawing and measuring strings, since it uses ints. Graphics.DrawString and .MeasureString use floats, so you'll get off-by-a-pixel errors here and there.
Update: Forget about using TextRenderer. It is dog slow.
You could try using a RichTextBox so that you can get multiple colors for the string and then make it read only and remove the border. Change the background color to the same as the Form it is on and you might get away with it.
As an alternative, you might do this as rtf or html in a suitable control (such as WebBrowser). It would probably take a bit more resources that you'd ideally like, but it'll work fairly quickly.
If you are building your Windows app for people with XP and up, you can use WPF. Even if it's a Windows Forms app, you can add a WPF UserControl.
I would then use a Label, and set the "Foreground" property to be a gradient of colors.
Or, in Windows Forms (no WPF), you could just use a "Flow Panel", and then in a for loop add multiple Labels as segments of your sentense... they will all "flow" together as if it was one label.
I'm using colored labels quite often to mark keywords in red color etc.
Like in Phil Wright's answer I use a RichTextBox control, remove the border and set the background color to SystemColors.Control.
To write colored text the control is first cleared and then I use this function to append colored text:
private void rtb_AppendText(Font selfont, Color color, Color bcolor,
string text, RichTextBox box)
{
// append the text to the RichTextBox control
int start = box.TextLength;
box.AppendText(text);
int end = box.TextLength;
// select the new text
box.Select(start, end - start);
// set the attributes of the new text
box.SelectionColor = color;
box.SelectionFont = selfont;
box.SelectionBackColor = bcolor;
// unselect
box.Select(end, 0);
// only required for multi line text to scroll to the end
box.ScrollToCaret();
}
If you want to run this function with "mono" then add a space before every new colored text, or mono will not set new the color correctly. This is not required with .NET
Usage:
myRtb.Text = "";
rtb_AppendText(new Font("Courier New", (float)10),
Color.Red, SystemColors.Control, " my red text", myRtb);
rtb_AppendText(new Font("Courier New", (float)10),
Color.Blue, SystemColors.Control, " followed by blue", myRtb);
Slightly off topic ... You could check also:
generate html color table
model colors in sql
the result
You can simply use multiple labels. Set the font properties you want and then use the left. top and width properties to display the words you want displayed differently. This is assuming you are using windows forms.
Try this,
labelId.Text = "Successfully sent to" + "<a style='color:Blue'> " + name + "</a>";
There is no native support for this; you will either have to use multiple labels or find a 3rd-party control that will provide this functionality.
I don't think so. You should create one yourself.
As per your Question your requirement is simple like
lable.Text = "This color is Red", So it have to display text like this
"The color is" will be in Blue and "Red" will be red color ..
This can be done like this
lable.Text = "<span style='Color:Blue'>" + " The color is " +"</span>" + "<span style='Color:Red'>"Red"</span>"