//验证输入为数字 |
02 |
private void txt_time_KeyDown(object sender, KeyEventArgs e) |
03 |
{ |
04 |
if (!((e.Key >= Key.D0 && e.Key <= Key.D9) || (e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9))) |
05 |
{ |
06 |
e.Handled = true; |
07 |
} |
08 |
} |
09 |
10 |
//屏蔽粘贴非法字符 |
11 |
private void txt_time_TextChanged(object sender, TextChangedEventArgs e) |
12 |
{ |
13 |
var textBox = sender as TextBox; |
14 |
TextChange[] change = new TextChange[e.Changes.Count]; |
15 |
e.Changes.CopyTo(change, 0); |
16 |
17 |
int offset = change[0].Offset; |
18 |
if (change[0].AddedLength > 0) |
19 |
{ |
20 |
double num = 0; |
21 |
if (!Double.TryParse(textBox.Text, out num)) |
22 |
{ |
23 |
textBox.Text = textBox.Text.Remove(offset, change[0].AddedLength); |
24 |
textBox.Select(offset, 0); |
25 |
} |
26 |
} |
27 |
} |
01 |
//屏蔽非法按键 |
02 |
private void txtAge_KeyDown(object sender, KeyEventArgs e) |
03 |
{ |
04 |
TextBox txt = sender as TextBox; |
05 |
06 |
if ((e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) || e.Key == Key.Decimal) |
07 |
{ |
08 |
if (txt.Text.Contains(".") && e.Key == Key.Decimal) |
09 |
{ |
10 |
e.Handled = true; |
11 |
return; |
12 |
} |
13 |
e.Handled = false; |
14 |
} |
15 |
else if (((e.Key >= Key.D0 && e.Key <= Key.D9) || e.Key == Key.OemPeriod) && e.KeyboardDevice.Modifiers != ModifierKeys.Shift) |
16 |
{ |
17 |
if (txt.Text.Contains(".") && e.Key == Key.OemPeriod) |
18 |
{ |
19 |
e.Handled = true; |
20 |
return; |
21 |
} |
22 |
e.Handled = false; |
23 |
} |
24 |
else |
25 |
{ |
26 |
e.Handled = true; |
27 |
} |
28 |
} |
29 |
30 |
//屏蔽中文输入和非法字符粘贴输入 |
31 |
private void txtAge_TextChanged(object sender, TextChangedEventArgs e) |
32 |
{ |
33 |
TextBox textBox = sender as TextBox; |
34 |
TextChange[] change = new TextChange[e.Changes.Count]; |
35 |
e.Changes.CopyTo(change, 0); |
36 |
37 |
int offset = change[0].Offset; |
38 |
if (change[0].AddedLength > 0) |
39 |
{ |
40 |
double num = 0; |
41 |
if (!Double.TryParse(textBox.Text, out num)) |
42 |
{ |
43 |
textBox.Text = textBox.Text.Remove(offset, change[0].AddedLength); |
44 |
textBox.Select(offset, 0); |
45 |
} |
46 |
} |
47 |
} |