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NET is an open source web framework for building modern web apps and services with .

validating asp forms-32

Also, if you go into the advanced view and select the repeating ‘:attachment URL’ field inside of the Attachments group and apply formatting to that field it just doesn’t work. Now, given one of the major advantages of using Info Path in the first place is not having to use any code behind, I didn’t want to have to add custom code to my form.

My solution involves 3 steps: 1.) Create a field in addition to the attachments field.

This property sets the schema(s) used to validate the document read by the Xml Reader.

Register the method Validation Error with the settings object's Validation Event Handler.

After setting the Validation Type property, the Schema's property and Validation Event Handler of the Xml Reader Settings object, we are ready to create a validating Xml Reader.

Create an Xml Reader that reads the file selected by the user from the txtfilename Text Box and validates it against the schema by calling the read method inside a whileloop.

However, when the user selects the XML document catalog1.xml, validation fails for the book element in the lines containing more than one title element.

When the program encounters the invalid node, the method Validation Error is called that displays a message explaining why validation failed. An object of the class Xml Schema Set stores a collection of schemas that an Xml Reader can be validated against.

To my surprise, Info Path does not let you select the Attachments field to apply rules, making it a challenge apply validation on attachment fields.

However, you’ll still run into the occasional roadblock while working with Info Path forms. The issue was being able to apply validation rules to the attachments field.

To do this, I used a custom expression: Now with all of that complete you will have a separate field that validates the attachments field and if there are no attachments, the text in the left hand column will be surrounded in the standard red dashed border.

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