How can I add 20% to a textbox value in C# WPF
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0
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In my WPF application I want a textbox that will add on a 20% to the users input value.
For example if users input is £85.00 then it should show £102.00.
How can I achieve this? Thanks.
<TextBox LostFocus="JobPrice_LostFocus" materialDesign:HintAssist.Hint="Price" Width="250" Name="JobPrice" PreviewTextInput="JobPrice_PreviewTextInput" />
c# wpf
asked Nov 22 at 13:04
Tom Marlin
131
|
show 1 more comment
up vote
0
down vote
favorite
1
In my WPF application I want a textbox that will add on a 20% to the users input value.
For example if users input is £85.00 then it should show £102.00.
How can I achieve this? Thanks.
<TextBox LostFocus="JobPrice_LostFocus" materialDesign:HintAssist.Hint="Price" Width="250" Name="JobPrice" PreviewTextInput="JobPrice_PreviewTextInput" />
c# wpf
asked Nov 22 at 13:04
Tom Marlin
131
5
Did you try to solve your problem? Any effort to show us?
– Steve
Nov 22 at 13:06
Well, it's on you to do any calculations you want! ;-)
– Nicolas
Nov 22 at 13:07
(1) What have you tried? What is not working? (2) It should be written to the same textbox? (3) What is the trigger for recalculating the value? You can't do it on keypress since you'd change the value the user is currently typing and thus will end up with an unusable control.
– Flater
Nov 22 at 13:07
Sorry I am new to using c# and coding in general and thought I would jump in the deep end and try c#, a friend told me to use stackoverflow and that it is good for problems and help. I have searched google to try work out my problem. @Flater If possible it could maybe work when user clicks off of textbox ?
– Tom Marlin
Nov 22 at 13:20
User clicks off of textbox then the percentage gets added
– Tom Marlin
Nov 22 at 13:21
|
show 1 more comment
up vote
0
down vote
favorite
1
up vote
0
down vote
favorite
1
1
In my WPF application I want a textbox that will add on a 20% to the users input value.
For example if users input is £85.00 then it should show £102.00.
How can I achieve this? Thanks.
<TextBox LostFocus="JobPrice_LostFocus" materialDesign:HintAssist.Hint="Price" Width="250" Name="JobPrice" PreviewTextInput="JobPrice_PreviewTextInput" />
c# wpf
asked Nov 22 at 13:04
Tom Marlin
131
In my WPF application I want a textbox that will add on a 20% to the users input value.
For example if users input is £85.00 then it should show £102.00.
How can I achieve this? Thanks.
<TextBox LostFocus="JobPrice_LostFocus" materialDesign:HintAssist.Hint="Price" Width="250" Name="JobPrice" PreviewTextInput="JobPrice_PreviewTextInput" />
c# wpf
c# wpf
asked Nov 22 at 13:04
Tom Marlin
131
asked Nov 22 at 13:04
Tom Marlin
131
asked Nov 22 at 13:04
Tom Marlin
131
asked Nov 22 at 13:04
Tom Marlin
131
asked Nov 22 at 13:04
Tom Marlin
131
131
5
Did you try to solve your problem? Any effort to show us?
– Steve
Nov 22 at 13:06
Well, it's on you to do any calculations you want! ;-)
– Nicolas
Nov 22 at 13:07
(1) What have you tried? What is not working? (2) It should be written to the same textbox? (3) What is the trigger for recalculating the value? You can't do it on keypress since you'd change the value the user is currently typing and thus will end up with an unusable control.
– Flater
Nov 22 at 13:07
Sorry I am new to using c# and coding in general and thought I would jump in the deep end and try c#, a friend told me to use stackoverflow and that it is good for problems and help. I have searched google to try work out my problem. @Flater If possible it could maybe work when user clicks off of textbox ?
– Tom Marlin
Nov 22 at 13:20
User clicks off of textbox then the percentage gets added
– Tom Marlin
Nov 22 at 13:21
|
show 1 more comment
5
Did you try to solve your problem? Any effort to show us?
– Steve
Nov 22 at 13:06
Well, it's on you to do any calculations you want! ;-)
– Nicolas
Nov 22 at 13:07
(1) What have you tried? What is not working? (2) It should be written to the same textbox? (3) What is the trigger for recalculating the value? You can't do it on keypress since you'd change the value the user is currently typing and thus will end up with an unusable control.
– Flater
Nov 22 at 13:07
Sorry I am new to using c# and coding in general and thought I would jump in the deep end and try c#, a friend told me to use stackoverflow and that it is good for problems and help. I have searched google to try work out my problem. @Flater If possible it could maybe work when user clicks off of textbox ?
– Tom Marlin
Nov 22 at 13:20
User clicks off of textbox then the percentage gets added
– Tom Marlin
Nov 22 at 13:21
5
5
Did you try to solve your problem? Any effort to show us?
– Steve
Nov 22 at 13:06
Did you try to solve your problem? Any effort to show us?
– Steve
Nov 22 at 13:06
Well, it's on you to do any calculations you want! ;-)
– Nicolas
Nov 22 at 13:07
Well, it's on you to do any calculations you want! ;-)
– Nicolas
Nov 22 at 13:07
(1) What have you tried? What is not working? (2) It should be written to the same textbox? (3) What is the trigger for recalculating the value? You can't do it on keypress since you'd change the value the user is currently typing and thus will end up with an unusable control.
– Flater
Nov 22 at 13:07
(1) What have you tried? What is not working? (2) It should be written to the same textbox? (3) What is the trigger for recalculating the value? You can't do it on keypress since you'd change the value the user is currently typing and thus will end up with an unusable control.
– Flater
Nov 22 at 13:07
Sorry I am new to using c# and coding in general and thought I would jump in the deep end and try c#, a friend told me to use stackoverflow and that it is good for problems and help. I have searched google to try work out my problem. @Flater If possible it could maybe work when user clicks off of textbox ?
– Tom Marlin
Nov 22 at 13:20
Sorry I am new to using c# and coding in general and thought I would jump in the deep end and try c#, a friend told me to use stackoverflow and that it is good for problems and help. I have searched google to try work out my problem. @Flater If possible it could maybe work when user clicks off of textbox ?
– Tom Marlin
Nov 22 at 13:20
User clicks off of textbox then the percentage gets added
– Tom Marlin
Nov 22 at 13:21
User clicks off of textbox then the percentage gets added
– Tom Marlin
Nov 22 at 13:21
|
show 1 more comment
1 Answer
1
active
oldest
votes
up vote
1
down vote
accepted
You can try this c# code:
private void TextBox1_LostFocus(object sender, RoutedEventArgs e)
{
decimal CalculatedPrice = decimal.Parse(TextBox1.Text) * 20 / 100 + decimal.Parse(TextBox1.Text);
TextBox1.Text = CalculatedPrice.ToString();
}
answered Nov 22 at 16:48
Dark Templar
73259
Good answer. Could you make it more readable though? Like, only parse the text once? Error checking if you think it's needed? It may also be a part of the requirement that the display string is in a "money" format and that may need some explanation for the OP.
– Dan Rayson
Nov 22 at 17:20
1
Dear Dan Rayson you are correct, I could add a sample how to limit the textbox to numbers only but looking at his XAML he added a PreviewTextInput event which he could use for text validation, since i'm not sure what codes he has so I try to answer only on the questions he asked.
– Dark Templar
Nov 22 at 18:34
Thank you @DarkTemplar was exactly what I was looking for
– Tom Marlin
Nov 23 at 6:38
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
accepted
You can try this c# code:
private void TextBox1_LostFocus(object sender, RoutedEventArgs e)
{
decimal CalculatedPrice = decimal.Parse(TextBox1.Text) * 20 / 100 + decimal.Parse(TextBox1.Text);
TextBox1.Text = CalculatedPrice.ToString();
}
answered Nov 22 at 16:48
Dark Templar
73259
Good answer. Could you make it more readable though? Like, only parse the text once? Error checking if you think it's needed? It may also be a part of the requirement that the display string is in a "money" format and that may need some explanation for the OP.
– Dan Rayson
Nov 22 at 17:20
1
Dear Dan Rayson you are correct, I could add a sample how to limit the textbox to numbers only but looking at his XAML he added a PreviewTextInput event which he could use for text validation, since i'm not sure what codes he has so I try to answer only on the questions he asked.
– Dark Templar
Nov 22 at 18:34
Thank you @DarkTemplar was exactly what I was looking for
– Tom Marlin
Nov 23 at 6:38
add a comment |
up vote
1
down vote
accepted
You can try this c# code:
private void TextBox1_LostFocus(object sender, RoutedEventArgs e)
{
decimal CalculatedPrice = decimal.Parse(TextBox1.Text) * 20 / 100 + decimal.Parse(TextBox1.Text);
TextBox1.Text = CalculatedPrice.ToString();
}
answered Nov 22 at 16:48
Dark Templar
73259
Good answer. Could you make it more readable though? Like, only parse the text once? Error checking if you think it's needed? It may also be a part of the requirement that the display string is in a "money" format and that may need some explanation for the OP.
– Dan Rayson
Nov 22 at 17:20
1
Dear Dan Rayson you are correct, I could add a sample how to limit the textbox to numbers only but looking at his XAML he added a PreviewTextInput event which he could use for text validation, since i'm not sure what codes he has so I try to answer only on the questions he asked.
– Dark Templar
Nov 22 at 18:34
Thank you @DarkTemplar was exactly what I was looking for
– Tom Marlin
Nov 23 at 6:38
add a comment |
up vote
1
down vote
accepted
up vote
1
down vote
accepted
You can try this c# code:
private void TextBox1_LostFocus(object sender, RoutedEventArgs e)
{
decimal CalculatedPrice = decimal.Parse(TextBox1.Text) * 20 / 100 + decimal.Parse(TextBox1.Text);
TextBox1.Text = CalculatedPrice.ToString();
}
answered Nov 22 at 16:48
Dark Templar
73259
You can try this c# code:
private void TextBox1_LostFocus(object sender, RoutedEventArgs e)
{
decimal CalculatedPrice = decimal.Parse(TextBox1.Text) * 20 / 100 + decimal.Parse(TextBox1.Text);
TextBox1.Text = CalculatedPrice.ToString();
}
answered Nov 22 at 16:48
Dark Templar
73259
answered Nov 22 at 16:48
Dark Templar
73259
answered Nov 22 at 16:48
Dark Templar
73259
answered Nov 22 at 16:48
Dark Templar
73259
73259
Good answer. Could you make it more readable though? Like, only parse the text once? Error checking if you think it's needed? It may also be a part of the requirement that the display string is in a "money" format and that may need some explanation for the OP.
– Dan Rayson
Nov 22 at 17:20
1
Dear Dan Rayson you are correct, I could add a sample how to limit the textbox to numbers only but looking at his XAML he added a PreviewTextInput event which he could use for text validation, since i'm not sure what codes he has so I try to answer only on the questions he asked.
– Dark Templar
Nov 22 at 18:34
Thank you @DarkTemplar was exactly what I was looking for
– Tom Marlin
Nov 23 at 6:38
add a comment |
Good answer. Could you make it more readable though? Like, only parse the text once? Error checking if you think it's needed? It may also be a part of the requirement that the display string is in a "money" format and that may need some explanation for the OP.
– Dan Rayson
Nov 22 at 17:20
1
Dear Dan Rayson you are correct, I could add a sample how to limit the textbox to numbers only but looking at his XAML he added a PreviewTextInput event which he could use for text validation, since i'm not sure what codes he has so I try to answer only on the questions he asked.
– Dark Templar
Nov 22 at 18:34
Thank you @DarkTemplar was exactly what I was looking for
– Tom Marlin
Nov 23 at 6:38
Good answer. Could you make it more readable though? Like, only parse the text once? Error checking if you think it's needed? It may also be a part of the requirement that the display string is in a "money" format and that may need some explanation for the OP.
– Dan Rayson
Nov 22 at 17:20
Good answer. Could you make it more readable though? Like, only parse the text once? Error checking if you think it's needed? It may also be a part of the requirement that the display string is in a "money" format and that may need some explanation for the OP.
– Dan Rayson
Nov 22 at 17:20
1
1
Dear Dan Rayson you are correct, I could add a sample how to limit the textbox to numbers only but looking at his XAML he added a PreviewTextInput event which he could use for text validation, since i'm not sure what codes he has so I try to answer only on the questions he asked.
– Dark Templar
Nov 22 at 18:34
Dear Dan Rayson you are correct, I could add a sample how to limit the textbox to numbers only but looking at his XAML he added a PreviewTextInput event which he could use for text validation, since i'm not sure what codes he has so I try to answer only on the questions he asked.
– Dark Templar
Nov 22 at 18:34
Thank you @DarkTemplar was exactly what I was looking for
– Tom Marlin
Nov 23 at 6:38
Thank you @DarkTemplar was exactly what I was looking for
– Tom Marlin
Nov 23 at 6:38
add a comment |
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5
Did you try to solve your problem? Any effort to show us?
– Steve
Nov 22 at 13:06
Well, it's on you to do any calculations you want! ;-)
– Nicolas
Nov 22 at 13:07
(1) What have you tried? What is not working? (2) It should be written to the same textbox? (3) What is the trigger for recalculating the value? You can't do it on keypress since you'd change the value the user is currently typing and thus will end up with an unusable control.
– Flater
Nov 22 at 13:07
Sorry I am new to using c# and coding in general and thought I would jump in the deep end and try c#, a friend told me to use stackoverflow and that it is good for problems and help. I have searched google to try work out my problem. @Flater If possible it could maybe work when user clicks off of textbox ?
– Tom Marlin
Nov 22 at 13:20
User clicks off of textbox then the percentage gets added
– Tom Marlin
Nov 22 at 13:21