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Privacy policy. Thank you. Microsoft makes no warranties, express or implied, with respect to the information provided here. Instead I want to show information, which really makes sense here. Solution - TargetNullValue This is where we use TargetNullValue: TargetNullValue is set to thecontrol's bound property when the value of the bound property also known as source property is null for some reason.
In layman's terms, when the target is null, this property will be assigned. Note: string is already null so TargetNullvalue will be triggered. Note: we can't set DateTime to null so have to make nullable DateTime. Note: we can't set int to null so have to make nullable int. Note: we can't set the bool to null so have to make nullable bool.
TargetNullValues have been successfully applied when source property was null for all 4 kinds of datatypes. New Problem!! That is cool, we can now handle a situation when source value is null and can make sense out of data with TargetNullValues. But what if there is a typo in bound property or our application fails to bind property for any reason. In such a case, we will have no data to display.
In our application let's say we change the bound properties name and let's add FallBackValues to those controls. Community Bot 1 1 1 silver badge. Boris Boris 9, 30 30 gold badges silver badges bronze badges. Is a phone property String. Empty or Null when it is created or deleted? It's null. The problem is solved : — Boris. Add a comment. Active Oldest Votes.
Improve this answer. Dmytro Laptin 7 7 silver badges 14 14 bronze badges. CodeNaked CodeNaked This has the curious effect of hiding every single one of my labels, including the text to the right of checkboxes. Not good : — Roman Starkov. Brad Cunningham Brad Cunningham 6, 1 1 gold badge 32 32 silver badges 39 39 bronze badges. Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question. Let's work to help developers, not make them feel stupid.
Related Questions. Ignoring null textboxes in SQL query. Empty string for date masked textbox. Empty values are written as empty string to database instead of NULL. When is null not a null? Layout: fixed fluid. Web02 2. Strip HTML.
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