Run-Time Databindings - Form With Many Different Textboxes

Jun 2, 2010

I have a form with many different textboxes on it. The form is used to Edit the data already in a databound table. At design time I set my Databindings.text to the appropriate columns.

During form load I check the values in the bound column for null values. If the column value is null, I set the textbox.text property to a descriptive prompt like "enter telephone #" or enter city. I also use databinding.remove to remove the databinding so that the desriptive prompts don't wind up in the database.

Here is the code I use to remove the databinding.

For Each Panels In Me.Controls

PBox = TryCast(Panels, Panel)

[CODE]...

.Tag2Defaultphase is a custom property I have defined which holds the default descriptive prompt. If the user enter a value into the textbox I then wish to add the bind back so that when I updateall with the tableadapter the value will be transferred back to the appropriate bound column.

Here is my code for that:

Sub perOptionalTBoxValidation(ByRef TBControl As custTextBoxControl, ByRef strDefaultTextPhrase As String, ByRef intMaxChars As Int32, ByRef bsBindingSource As BindingSource, ByRef strColumnName As String)

[CODE]...

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[code]....

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