Answer by Jon Milliken for How to filter textbox input to numeric only?
The purpose of your function could help provide additional solutions. Checking for a numeric value on each KeyPress is likely overkill. Then you have to overkill it more by accounting for backspace,...
View ArticleAnswer by user3251085 for How to filter textbox input to numeric only?
Public Class NumericTextBox : Inherits System.Windows.Forms.TextBox Protected Overrides Sub OnKeyPress(e As Windows.Forms.KeyPressEventArgs) If Char.IsDigit(e.KeyChar) Or Char.IsControl(e.KeyChar) Or...
View ArticleAnswer by Duke49ifrance for How to filter textbox input to numeric only?
Will help you... Public Function IsNumericTextbox(ByVal sender As TextBox, ByVal KeyChar As Char) As Boolean'set TRUE: cause a exception when the keychar is not Allowed into vars: allowedChars,...
View ArticleAnswer by Ejie Fernandez for How to filter textbox input to numeric only?
This is another way to restrict number inputs into textbox . using KEYPRESS EventsIf Asc(e.KeyChar) <> 13 AndAlso Asc(e.KeyChar) <> 8 AndAlso Not IsNumeric(e.KeyChar) Then...
View ArticleAnswer by user2219334 for How to filter textbox input to numeric only?
This will allow numeric input ,Backspace to correct your input , and also a decimal point. If (e.KeyChar < "0" OrElse e.KeyChar > "9") AndAlso e.KeyChar <> ControlChars.Back AndAlso...
View ArticleAnswer by Laxmikant Bhumkar for How to filter textbox input to numeric only?
This code will help you to restrict multiple TEXTBOX to accept only NUMERIC VALUE and BACKSPACE key. However you can remove If e.KeyChar <> ChrW(Keys.Back) Then and End If value from code when...
View ArticleAnswer by kevchadders for How to filter textbox input to numeric only?
There are many ways to do this. I've had a quick stab at it and go this which works. I have used the KeyPress sub for the textbox, and pass each keypress to the IsNumber function.NOTE: I have allowed...
View ArticleAnswer by aslı for How to filter textbox input to numeric only?
I suggest that you use regular expressions. You can search Google, like 'regular expression textbox only numeric' and I guess you'll come up with many examples.For example, if you are in ASP.NET you...
View ArticleAnswer by Josh for How to filter textbox input to numeric only?
You can check Char.IsDigit(e.KeyChar), but the best thing to do in this case is to create a subclass of TextBox and override IsInputChar(). That way you have a reusable TextBox control that you can...
View ArticleHow to filter textbox input to numeric only?
How do I suppress all data except numeric? This is not working on KeyDown():If e.KeyData < Keys.D0 Or e.KeyData > Keys.D9 Then e.Handled = TrueEnd If
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