who is jim jones dating now - Validating file extension with regularexpressionvalidator


Here Mudassar Ahmed Khan has explained a very common issue faced in which the File Upload control Posted File property does not contain any files and also the Has File property is false when the File Uplo Here Mudassar Ahmed Khan has explained the trick to clear the contents i.e. Net AJAX Control Toolkit Async File Upload control when page is revisited reloaded or refreshed a In this article Mudassar Ahmed Khan has explained with an example, how touse the ASP.Net using the Async File Upload control in Ajax Control Toolkit.

validating file extension with regularexpressionvalidator-50

Does anyone know a regular expression that will validate the file extension but also allow multiple file extensions if necessary. Basically, what I want is to validate a file input box to check if the extension is the correct type, i.e. Also I would like to check multiple file types, for instance allow a gif or a jpeg or a jpg. Does anyone know a regular expression that will validate the file extension but also allow multiple file extensions if necessary. Basically, what I want is to validate a file input box to check if the extension is the correct type, i.e. Also I would like to check multiple file types, for instance allow a gif or a jpeg or a jpg. Here there are some clues string check File Regex = @"^. BTW, there is an excellent freeware utility for building and testing Regular Expressions, which you can download from: -- HTH, Kevin Spencer .. "Kevin Spencer" It tried putting this in the validation expression of my regular expression validator, got it to validate a textbox with as the text value and it didn't work. \.((jpg)|(gif)|(jpeg))$"; string[] test Data = new string[] ; foreach(string test in test Data) Hope this helps -- ____________________ Chris Kennedy wrote: Does anyone know a regular expression that will validate the file extension but also allow multiple file extensions if necessary. Basically, what I want is to validate a file input box to check if the extension is the correct type, i.e. Also I would like to check multiple file types, for instance allow a gif or a jpeg or a jpg. It tried putting this in the validation expression of my regular expression validator, got it to validate a textbox with as the text value and it didn't work. \.((jpg)|(gif)|(jpeg))$"; string[] test Data = new string[] ; foreach(string test in test Data) Hope this helps -- ____________________ Chris Kennedy wrote: Does anyone know a regular expression that will validate the file extension but also allow multiple file extensions if necessary. Basically, what I want is to validate a file input I tried the expression ^. [g G])|([g G][i I][f F]))$ to allow extensions like j Pe G etc Chris Kennedy wrote: Here there are some cluesstring check File Regex = @"^.

\.((jpg)|(gif)|(jpeg))$"; string[] test Data = new string[] ; foreach(string test in test Data) Hope this helps -- ____________________ Chris Kennedy wrote: Does anyone know a regular expression that will validate the file extension but also allow multiple file extensions if necessary. Basically, what I want is to validate a file input box to check if the extension is the correct type, i.e. Also I would like to check multiple file types, for instance allow a gif or a jpeg or a jpg. Sorry about repost but my news server sometimes gets confused and appends the question to the wrong thread. You can sometimes find it on Google but not always. I want an expression to check for a variable number of expressions in the extension of a file path e.g. Net Developer Microsoft MVP Big things are made up of lots of little things. \.((jpg)|(gif)|(jpeg))$ and it worked for me in a Regular Expression Validator. I didn't find a way to specify that the regular expression is case insensitive for the Regular Expression Validator.

NET Regex Engine’s ignore case construct is not supported on the client side Javascript Regex Engine.

However, the expression above will match all variations of upper/lowercase characters such as .gif, . Gif One small gotcha, don’t forget to check in your postback handler that the page is valid!

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