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08-Sep-2017 19:30

validating date in vb net-64

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hi all, i'm have a textbox, input for that textbox is date, i want my users to enter the date in MM/DD/YYYY format, for that validation i'm using compare validator 'data type' property.

I'm using the format date/month/year (dd/MM/YY) Hi! You can pick up the value yourself on postback using this if you do want to set the field to read-only: if (Page. You should probably mark the first post to your original question as "Answer" too (if you haven't already) as he got you most of the way to the solution [:)] Here is an easier solution that most people are using. Process Cmd Key(msg, key Data) Else For Each ch As Char In text. Process Cmd Key(msg, key Data) Else For Each ch As Char In text. Keys)As Boolean 'Need to prevent pasting of invalid characters If key Data = (Keys. /claes"Dennis" Using the Key Press event does not preclude the user from cutting from some other source and pasting invalid chars into the text box. Process Cmd Key(msg, key Data) End If End Function Private Function Is Valid(By Val ch As Char) As Boolean 'TODO: Check if the character is valid End Function The above will prevent pasting if the text contains any illegalcharacters. Using regular expressions to find invalid character in the textbox. news:11**********************@i42g2000cwa.googlegr .. Hi Guys, I have a textbox in windows form that should only accept alphabets, numbers, spaces and underscore. -- Dennis in Houston "Siva M" wrote: There are at least couple of ways to do this: 1. If you want to prevent illegal characters from being pasted you can use this code: Protected Overrides Function Process Cmd Key(By Ref msg As System. Using regular expressions tofind invalid character in the textbox. I believe you have to subclass the textbox to override the Process Cmd Key whereas with the validating event you don't have to do any subclassing. -- Dennis in Houston "Claes Bergefall" wrote: If you want to prevent illegal characters from being pasted you can use this code: Protected Overrides Function Process Cmd Key(By Ref msg As System. Using regular expressions to find invalid character in the textbox. news:11**********************@i42g2000cwa.googlegr .. Hi Guys, I have a textbox in windows form that should only accept alphabets, numbers, spaces and underscore.



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