simple text color in rich text box

Question

I can find a million examples of doing reg ex to apply syntax highlighting to a rich text box. but what i need it just a simple way to add in a word of a diffrent color.

What would the code be to just put the words "Hello World" into a textbox and have Hello be red and World be green?

This code doesnt work.

this.richTextBox1.SelectionColor = Color.Red
this.richTextBox1.text += "Test"

Solution 1

Select the text after you put it in and then change the color.

For example:

richTextBox1.Text += "Test"
richTextBox1.Select(richTextBox1.TextLength - 4, 4)
richTextBox1.SelectionColor = Color.Red

Solution 2

This code adds text "Hello" in red color and "World" in green to the RichTextBox.

RichTextBox1.SelectionColor = Color.Red
RichTextBox1.SelectedText = "Hello "
RichTextBox1.SelectionColor = Color.Green
RichTextBox1.SelectedText = "World"

Solution 3

Ive worked with it in VB6 and i think its the same: You must select the text and then apply

this.richTextBox1.SelectionColor = Color.Red

The added text always appears in the defaut color, you must select it and then change its color:

this.richTextBox1.text="Hello world!"
this.richTextBox1.selstart=0
this.richTextBox1.sellength=5
this.richTextBox1.SelectionColor = Color.Red

As i dont use vb.net, you must check the spelling but i think thats the key. The code i wrote is supposed to print "Hello" in red and "World!" in black.

Solution 4

Try this

    RichTextBox2.SelectionLength = 0
    RichTextBox1.SelectionStart = 0
    ' We deselect everything first in case the user has something selected.
    RichTextBox1.SelectionColor = Color.Red
    RichTextBox1.SelectedText = "Hello "
    RichTextBox1.SelectionColor = Color.Green
    RichTextBox1.SelectedText = "World "

This will add it to the start of the textbox. I think you could also make SelectionStart = RichTextBox1.TextLength which would put it at the end instead of the start.

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Comments

[Barracuda]

Your answer is a lot more straightforward than any of the answers, and it works for me! Thanks Meta-Knight.

[Roni Tovi]

This isn't the right way to append a text to any Form control. Each time you are resetting the whole text inside a control which can be very slow when the content gets bigger and bigger. Poor coding.