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C# UWP how to type a number string and get commas real time in order?
I'm trying to type numbers into a textbox and have it add a comma after every third number in real time. I need to convert the string of numbers into a real number because I need to do a simple math equation in real time as well. A problem I'm running into is that if I type in order of 1234567 after I hit 4 it adds the comma and then the input box jumps to the beginning of the string. So I type from 1 to 7 I get 5,671,234
private void PriceBox_TextChanging(TextBox sender, TextBoxTextChangingEventArgs args)
{
if (!String.IsNullOrEmpty(PriceBox.Text))
{
int x = Int32.Parse(PriceBox.Text, NumberStyles.AllowThousands);
float y = x * .50f;
Half.Text = y.ToString("N0");
PriceBox.Text = x.ToString("N0");
}
}
c# uwp
asked Jan 1 at 7:29
luigiluigi
1012
add a comment |
I'm trying to type numbers into a textbox and have it add a comma after every third number in real time. I need to convert the string of numbers into a real number because I need to do a simple math equation in real time as well. A problem I'm running into is that if I type in order of 1234567 after I hit 4 it adds the comma and then the input box jumps to the beginning of the string. So I type from 1 to 7 I get 5,671,234
private void PriceBox_TextChanging(TextBox sender, TextBoxTextChangingEventArgs args)
{
if (!String.IsNullOrEmpty(PriceBox.Text))
{
int x = Int32.Parse(PriceBox.Text, NumberStyles.AllowThousands);
float y = x * .50f;
Half.Text = y.ToString("N0");
PriceBox.Text = x.ToString("N0");
}
}
c# uwp
asked Jan 1 at 7:29
luigiluigi
1012
add a comment |
I'm trying to type numbers into a textbox and have it add a comma after every third number in real time. I need to convert the string of numbers into a real number because I need to do a simple math equation in real time as well. A problem I'm running into is that if I type in order of 1234567 after I hit 4 it adds the comma and then the input box jumps to the beginning of the string. So I type from 1 to 7 I get 5,671,234
private void PriceBox_TextChanging(TextBox sender, TextBoxTextChangingEventArgs args)
{
if (!String.IsNullOrEmpty(PriceBox.Text))
{
int x = Int32.Parse(PriceBox.Text, NumberStyles.AllowThousands);
float y = x * .50f;
Half.Text = y.ToString("N0");
PriceBox.Text = x.ToString("N0");
}
}
c# uwp
asked Jan 1 at 7:29
luigiluigi
1012
I'm trying to type numbers into a textbox and have it add a comma after every third number in real time. I need to convert the string of numbers into a real number because I need to do a simple math equation in real time as well. A problem I'm running into is that if I type in order of 1234567 after I hit 4 it adds the comma and then the input box jumps to the beginning of the string. So I type from 1 to 7 I get 5,671,234
private void PriceBox_TextChanging(TextBox sender, TextBoxTextChangingEventArgs args)
{
if (!String.IsNullOrEmpty(PriceBox.Text))
{
int x = Int32.Parse(PriceBox.Text, NumberStyles.AllowThousands);
float y = x * .50f;
Half.Text = y.ToString("N0");
PriceBox.Text = x.ToString("N0");
}
}
c# uwp
c# uwp
asked Jan 1 at 7:29
luigiluigi
1012
asked Jan 1 at 7:29
luigiluigi
1012
asked Jan 1 at 7:29
luigiluigi
1012
asked Jan 1 at 7:29
luigiluigi
1012
asked Jan 1 at 7:29
luigiluigi
1012
1012
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can format a number to have commas after every 3 digit as described here. One way is to hook the TextChanged event, convert the current number to a comma separated number, and replace the current text with the comma separated number.
Also, to stop ovetflow exception, you have to unsubscribe from the TextChanged event and then subscribe again.
The total event handler is here:
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextBox textBox = sender as TextBox;
/// unsubscribe, so that the replacing doesn't invoke this handler again
textBox.TextChanged -= TextBox_TextChanged;
if(double.TryParse(textBox.Text, out double value))
{
textBox.Text = value.ToString("N0");
}
/// put the cursor in the end of the text
textBox.Select(textBox.Text.Length, 0);
/// subscribe again
textBox.TextChanged += TextBox_TextChanged;
}
Hope that helps.
Edit:
To allow numeric values only, hook the PreviewKeyDown event, allow numeric keys only. like this:
private void TextBox_PreviewKeyDown(object sender, KeyRoutedEventArgs e)
{
bool proceed =
(e.Key >= Windows.System.VirtualKey.Number0 && e.Key <= Windows.System.VirtualKey.Number9) ||
(e.Key >= Windows.System.VirtualKey.NumberPad0 && e.Key <= Windows.System.VirtualKey.NumberPad9);
e.Handled = !proceed;
}
And at last, to allow more than 3 commas, I have edited the code, it should allow more than 3 commas now (basically, I replaced int with double).
answered Jan 1 at 8:24
MuzibMuzib
1,094719
Thank you for the reply. I'm at work right now, but I'll give it a try as soon as I get home. If it works I'll be sure to upvote you and mark as correct answer
– luigi
Jan 1 at 22:18
1
Thank you very much. Your code worked. It does up to 3 commas and then it stops. It also allows letters and special characters, but I'll try to figure that out. Thanks again
– luigi
Jan 2 at 7:44
I have edited the answer to meet the additional requirements too. Check it.
– Muzib
Jan 2 at 8:08
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can format a number to have commas after every 3 digit as described here. One way is to hook the TextChanged event, convert the current number to a comma separated number, and replace the current text with the comma separated number.
Also, to stop ovetflow exception, you have to unsubscribe from the TextChanged event and then subscribe again.
The total event handler is here:
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextBox textBox = sender as TextBox;
/// unsubscribe, so that the replacing doesn't invoke this handler again
textBox.TextChanged -= TextBox_TextChanged;
if(double.TryParse(textBox.Text, out double value))
{
textBox.Text = value.ToString("N0");
}
/// put the cursor in the end of the text
textBox.Select(textBox.Text.Length, 0);
/// subscribe again
textBox.TextChanged += TextBox_TextChanged;
}
Hope that helps.
Edit:
To allow numeric values only, hook the PreviewKeyDown event, allow numeric keys only. like this:
private void TextBox_PreviewKeyDown(object sender, KeyRoutedEventArgs e)
{
bool proceed =
(e.Key >= Windows.System.VirtualKey.Number0 && e.Key <= Windows.System.VirtualKey.Number9) ||
(e.Key >= Windows.System.VirtualKey.NumberPad0 && e.Key <= Windows.System.VirtualKey.NumberPad9);
e.Handled = !proceed;
}
And at last, to allow more than 3 commas, I have edited the code, it should allow more than 3 commas now (basically, I replaced int with double).
answered Jan 1 at 8:24
MuzibMuzib
1,094719
Thank you for the reply. I'm at work right now, but I'll give it a try as soon as I get home. If it works I'll be sure to upvote you and mark as correct answer
– luigi
Jan 1 at 22:18
1
Thank you very much. Your code worked. It does up to 3 commas and then it stops. It also allows letters and special characters, but I'll try to figure that out. Thanks again
– luigi
Jan 2 at 7:44
I have edited the answer to meet the additional requirements too. Check it.
– Muzib
Jan 2 at 8:08
add a comment |
You can format a number to have commas after every 3 digit as described here. One way is to hook the TextChanged event, convert the current number to a comma separated number, and replace the current text with the comma separated number.
Also, to stop ovetflow exception, you have to unsubscribe from the TextChanged event and then subscribe again.
The total event handler is here:
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextBox textBox = sender as TextBox;
/// unsubscribe, so that the replacing doesn't invoke this handler again
textBox.TextChanged -= TextBox_TextChanged;
if(double.TryParse(textBox.Text, out double value))
{
textBox.Text = value.ToString("N0");
}
/// put the cursor in the end of the text
textBox.Select(textBox.Text.Length, 0);
/// subscribe again
textBox.TextChanged += TextBox_TextChanged;
}
Hope that helps.
Edit:
To allow numeric values only, hook the PreviewKeyDown event, allow numeric keys only. like this:
private void TextBox_PreviewKeyDown(object sender, KeyRoutedEventArgs e)
{
bool proceed =
(e.Key >= Windows.System.VirtualKey.Number0 && e.Key <= Windows.System.VirtualKey.Number9) ||
(e.Key >= Windows.System.VirtualKey.NumberPad0 && e.Key <= Windows.System.VirtualKey.NumberPad9);
e.Handled = !proceed;
}
And at last, to allow more than 3 commas, I have edited the code, it should allow more than 3 commas now (basically, I replaced int with double).
answered Jan 1 at 8:24
MuzibMuzib
1,094719
Thank you for the reply. I'm at work right now, but I'll give it a try as soon as I get home. If it works I'll be sure to upvote you and mark as correct answer
– luigi
Jan 1 at 22:18
1
Thank you very much. Your code worked. It does up to 3 commas and then it stops. It also allows letters and special characters, but I'll try to figure that out. Thanks again
– luigi
Jan 2 at 7:44
I have edited the answer to meet the additional requirements too. Check it.
– Muzib
Jan 2 at 8:08
add a comment |
You can format a number to have commas after every 3 digit as described here. One way is to hook the TextChanged event, convert the current number to a comma separated number, and replace the current text with the comma separated number.
Also, to stop ovetflow exception, you have to unsubscribe from the TextChanged event and then subscribe again.
The total event handler is here:
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextBox textBox = sender as TextBox;
/// unsubscribe, so that the replacing doesn't invoke this handler again
textBox.TextChanged -= TextBox_TextChanged;
if(double.TryParse(textBox.Text, out double value))
{
textBox.Text = value.ToString("N0");
}
/// put the cursor in the end of the text
textBox.Select(textBox.Text.Length, 0);
/// subscribe again
textBox.TextChanged += TextBox_TextChanged;
}
Hope that helps.
Edit:
To allow numeric values only, hook the PreviewKeyDown event, allow numeric keys only. like this:
private void TextBox_PreviewKeyDown(object sender, KeyRoutedEventArgs e)
{
bool proceed =
(e.Key >= Windows.System.VirtualKey.Number0 && e.Key <= Windows.System.VirtualKey.Number9) ||
(e.Key >= Windows.System.VirtualKey.NumberPad0 && e.Key <= Windows.System.VirtualKey.NumberPad9);
e.Handled = !proceed;
}
And at last, to allow more than 3 commas, I have edited the code, it should allow more than 3 commas now (basically, I replaced int with double).
answered Jan 1 at 8:24
MuzibMuzib
1,094719
You can format a number to have commas after every 3 digit as described here. One way is to hook the TextChanged event, convert the current number to a comma separated number, and replace the current text with the comma separated number.
Also, to stop ovetflow exception, you have to unsubscribe from the TextChanged event and then subscribe again.
The total event handler is here:
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextBox textBox = sender as TextBox;
/// unsubscribe, so that the replacing doesn't invoke this handler again
textBox.TextChanged -= TextBox_TextChanged;
if(double.TryParse(textBox.Text, out double value))
{
textBox.Text = value.ToString("N0");
}
/// put the cursor in the end of the text
textBox.Select(textBox.Text.Length, 0);
/// subscribe again
textBox.TextChanged += TextBox_TextChanged;
}
Hope that helps.
Edit:
To allow numeric values only, hook the PreviewKeyDown event, allow numeric keys only. like this:
private void TextBox_PreviewKeyDown(object sender, KeyRoutedEventArgs e)
{
bool proceed =
(e.Key >= Windows.System.VirtualKey.Number0 && e.Key <= Windows.System.VirtualKey.Number9) ||
(e.Key >= Windows.System.VirtualKey.NumberPad0 && e.Key <= Windows.System.VirtualKey.NumberPad9);
e.Handled = !proceed;
}
And at last, to allow more than 3 commas, I have edited the code, it should allow more than 3 commas now (basically, I replaced int with double).
answered Jan 1 at 8:24
MuzibMuzib
1,094719
edited Jan 2 at 8:07
answered Jan 1 at 8:24
MuzibMuzib
1,094719
answered Jan 1 at 8:24
MuzibMuzib
1,094719
answered Jan 1 at 8:24
MuzibMuzib
1,094719
1,094719
Thank you for the reply. I'm at work right now, but I'll give it a try as soon as I get home. If it works I'll be sure to upvote you and mark as correct answer
– luigi
Jan 1 at 22:18
1
Thank you very much. Your code worked. It does up to 3 commas and then it stops. It also allows letters and special characters, but I'll try to figure that out. Thanks again
– luigi
Jan 2 at 7:44
I have edited the answer to meet the additional requirements too. Check it.
– Muzib
Jan 2 at 8:08
add a comment |
Thank you for the reply. I'm at work right now, but I'll give it a try as soon as I get home. If it works I'll be sure to upvote you and mark as correct answer
– luigi
Jan 1 at 22:18
1
Thank you very much. Your code worked. It does up to 3 commas and then it stops. It also allows letters and special characters, but I'll try to figure that out. Thanks again
– luigi
Jan 2 at 7:44
I have edited the answer to meet the additional requirements too. Check it.
– Muzib
Jan 2 at 8:08
Thank you for the reply. I'm at work right now, but I'll give it a try as soon as I get home. If it works I'll be sure to upvote you and mark as correct answer
– luigi
Jan 1 at 22:18
Thank you for the reply. I'm at work right now, but I'll give it a try as soon as I get home. If it works I'll be sure to upvote you and mark as correct answer
– luigi
Jan 1 at 22:18
1
1
Thank you very much. Your code worked. It does up to 3 commas and then it stops. It also allows letters and special characters, but I'll try to figure that out. Thanks again
– luigi
Jan 2 at 7:44
Thank you very much. Your code worked. It does up to 3 commas and then it stops. It also allows letters and special characters, but I'll try to figure that out. Thanks again
– luigi
Jan 2 at 7:44
I have edited the answer to meet the additional requirements too. Check it.
– Muzib
Jan 2 at 8:08
I have edited the answer to meet the additional requirements too. Check it.
– Muzib
Jan 2 at 8:08
add a comment |
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