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How do I change background color of a text range in WPF TextBox?
I want to change background color for some portions of text (from begin and end absolute char positions) of a TextBox control.
(either from user selection start and end OR from preloaded start and end absolute character positions)
Is this possible?
NOTE I do not want to use RichTextBox or any Flow Document.
c# wpf
asked Nov 19 '18 at 16:01
erotavlas
1,4291742
add a comment |
I want to change background color for some portions of text (from begin and end absolute char positions) of a TextBox control.
(either from user selection start and end OR from preloaded start and end absolute character positions)
Is this possible?
NOTE I do not want to use RichTextBox or any Flow Document.
c# wpf
asked Nov 19 '18 at 16:01
erotavlas
1,4291742
Can't with TextBox but in TextBlock e.g <TextBlock> Hi <TextBlock Background="Silver">Color Me</TextBlock> No Color ? </TextBlock>
– Shubham Sahu
Nov 19 '18 at 16:16
1
I used this answer. I will delete my answer. stackoverflow.com/questions/751741/…
– paparazzo
Nov 19 '18 at 16:19
add a comment |
I want to change background color for some portions of text (from begin and end absolute char positions) of a TextBox control.
(either from user selection start and end OR from preloaded start and end absolute character positions)
Is this possible?
NOTE I do not want to use RichTextBox or any Flow Document.
c# wpf
asked Nov 19 '18 at 16:01
erotavlas
1,4291742
I want to change background color for some portions of text (from begin and end absolute char positions) of a TextBox control.
(either from user selection start and end OR from preloaded start and end absolute character positions)
Is this possible?
NOTE I do not want to use RichTextBox or any Flow Document.
c# wpf
c# wpf
asked Nov 19 '18 at 16:01
erotavlas
1,4291742
asked Nov 19 '18 at 16:01
erotavlas
1,4291742
edited Nov 19 '18 at 16:14
asked Nov 19 '18 at 16:01
erotavlas
1,4291742
asked Nov 19 '18 at 16:01
erotavlas
1,4291742
asked Nov 19 '18 at 16:01
erotavlas
1,4291742
1,4291742
Can't with TextBox but in TextBlock e.g <TextBlock> Hi <TextBlock Background="Silver">Color Me</TextBlock> No Color ? </TextBlock>
– Shubham Sahu
Nov 19 '18 at 16:16
1
I used this answer. I will delete my answer. stackoverflow.com/questions/751741/…
– paparazzo
Nov 19 '18 at 16:19
add a comment |
Can't with TextBox but in TextBlock e.g <TextBlock> Hi <TextBlock Background="Silver">Color Me</TextBlock> No Color ? </TextBlock>
– Shubham Sahu
Nov 19 '18 at 16:16
1
I used this answer. I will delete my answer. stackoverflow.com/questions/751741/…
– paparazzo
Nov 19 '18 at 16:19
Can't with TextBox but in TextBlock e.g <TextBlock> Hi <TextBlock Background="Silver">Color Me</TextBlock> No Color ? </TextBlock>
– Shubham Sahu
Nov 19 '18 at 16:16
Can't with TextBox but in TextBlock e.g <TextBlock> Hi <TextBlock Background="Silver">Color Me</TextBlock> No Color ? </TextBlock>
– Shubham Sahu
Nov 19 '18 at 16:16
1
1
I used this answer. I will delete my answer. stackoverflow.com/questions/751741/…
– paparazzo
Nov 19 '18 at 16:19
I used this answer. I will delete my answer. stackoverflow.com/questions/751741/…
– paparazzo
Nov 19 '18 at 16:19
add a comment |
1 Answer
1
active
oldest
votes
Unless text selection is sufficient, you can't do it directly with a textbox.
I recommend you think carefully about whether selecting a text range is sufficient.
You can do that based on character from and to and you could override the system brush making it whatever colour you like.
If that isn't sufficient then.
You'd need some other control under the textbox which made it look like it's the background of the textbox changing.
One way to do this would be to use an itemscontrol you template into textblocks and colour their backgrounds.
You put that under your textbox so it's background shows through. Probably best to set the text the same colour as your background as well so no small offsets cause problems.
Alternatively, you could use a lineargradientbrush and calculate where the characters are. This would be quite tricky though.
answered Nov 19 '18 at 16:25
Andy
2,9551106
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Unless text selection is sufficient, you can't do it directly with a textbox.
I recommend you think carefully about whether selecting a text range is sufficient.
You can do that based on character from and to and you could override the system brush making it whatever colour you like.
If that isn't sufficient then.
You'd need some other control under the textbox which made it look like it's the background of the textbox changing.
One way to do this would be to use an itemscontrol you template into textblocks and colour their backgrounds.
You put that under your textbox so it's background shows through. Probably best to set the text the same colour as your background as well so no small offsets cause problems.
Alternatively, you could use a lineargradientbrush and calculate where the characters are. This would be quite tricky though.
answered Nov 19 '18 at 16:25
Andy
2,9551106
add a comment |
Unless text selection is sufficient, you can't do it directly with a textbox.
I recommend you think carefully about whether selecting a text range is sufficient.
You can do that based on character from and to and you could override the system brush making it whatever colour you like.
If that isn't sufficient then.
You'd need some other control under the textbox which made it look like it's the background of the textbox changing.
One way to do this would be to use an itemscontrol you template into textblocks and colour their backgrounds.
You put that under your textbox so it's background shows through. Probably best to set the text the same colour as your background as well so no small offsets cause problems.
Alternatively, you could use a lineargradientbrush and calculate where the characters are. This would be quite tricky though.
answered Nov 19 '18 at 16:25
Andy
2,9551106
add a comment |
Unless text selection is sufficient, you can't do it directly with a textbox.
I recommend you think carefully about whether selecting a text range is sufficient.
You can do that based on character from and to and you could override the system brush making it whatever colour you like.
If that isn't sufficient then.
You'd need some other control under the textbox which made it look like it's the background of the textbox changing.
One way to do this would be to use an itemscontrol you template into textblocks and colour their backgrounds.
You put that under your textbox so it's background shows through. Probably best to set the text the same colour as your background as well so no small offsets cause problems.
Alternatively, you could use a lineargradientbrush and calculate where the characters are. This would be quite tricky though.
answered Nov 19 '18 at 16:25
Andy
2,9551106
Unless text selection is sufficient, you can't do it directly with a textbox.
I recommend you think carefully about whether selecting a text range is sufficient.
You can do that based on character from and to and you could override the system brush making it whatever colour you like.
If that isn't sufficient then.
You'd need some other control under the textbox which made it look like it's the background of the textbox changing.
One way to do this would be to use an itemscontrol you template into textblocks and colour their backgrounds.
You put that under your textbox so it's background shows through. Probably best to set the text the same colour as your background as well so no small offsets cause problems.
Alternatively, you could use a lineargradientbrush and calculate where the characters are. This would be quite tricky though.
answered Nov 19 '18 at 16:25
Andy
2,9551106
answered Nov 19 '18 at 16:25
Andy
2,9551106
answered Nov 19 '18 at 16:25
Andy
2,9551106
answered Nov 19 '18 at 16:25
Andy
2,9551106
2,9551106
add a comment |
add a comment |
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Can't with TextBox but in TextBlock e.g <TextBlock> Hi <TextBlock Background="Silver">Color Me</TextBlock> No Color ? </TextBlock>
– Shubham Sahu
Nov 19 '18 at 16:16
1
I used this answer. I will delete my answer. stackoverflow.com/questions/751741/…
– paparazzo
Nov 19 '18 at 16:19