Itemupdating read only field
By default, the formatting string specified by the Data Format String property is applied to field values only when the data-bound control is in read-only mode.
To apply the formatting string to values displayed while the data-bound control is in edit mode, set the Apply Format In Edit Mode property to Note A Bound Field object does not automatically remove the formatting when the field is updated in the data source.
Before diving into details of Info Path forms deployment here's a little bit of background on workflow and Info Path forms integration.
Typical Share Point workflows goes through different stages - association, initiation, task completion.
There is some great documentation on MSDN regarding this.
In general, if you need code (custom event handlers/validation) behind your Info Path forms you should use the VSTO Info Path template and create a project alongside your workflow project.
Sometimes, we required to display form fields in non-editable mode.
Item Updating Dim db As New my Data Context Dim result = From item In Items _ Where item. Value _ Select New With 'Trying to read new name entered 'Return "" with this method dv. Item(1) 'Null Reference Exception with this method CType(dv.
Details View Update Event Args) Handles dv Item Detail.
Instead, you need to first retrieve a reference to the Text Box within the Cell, and then you can extract the Text property from there.
Text End Sub When you're in the Edit mode, you can't extract the Text property out of the Cell.
To String) End If Next 'Dim t Name As Text Box = CType(dv Item Detail. Find Control("Name"), Text Box) 'Dim name As string = t Name.