Start Validating length of textbox in datagrid

Validating length of textbox in datagrid

3) a key/value pairs, the key is the validing type name, the value is an array consisting validating parameters.

What we want to do is a simple entry form for an e-mail address. Markup; --------------------- Hidden note: You have a mistype in the last parameter of this line: --------------------- public override Validation Result Validate(object value, Culture Info ulture Info) --------------------- It's "culture Info" with " C" instead of "ulture Info".

If the user enters an invalid e-mail address, the border of the textbox gets red and the tooltip is showing the reason. Problem: I tried to define <sys: String x: Key="email Regex"> but got the error that the TYPE "sys: String" NOT FOUND.

If users enter invalid values, it will change the background color, display the alarm icon and a tooltip message.

The validatebox can be integrated with form plugin and will prevent invalid fields from submission.

In this example I am implementing an generic validation rule that takes a regular expression as validation rule.

If the expression matches the data is treated as valid.

There does not seem to be an obvious/simple way to do the same thing with a Grid View Data Column.