Disabled Checkbox On The Fly?

Jul 6, 2010

I'm trying to disable a checkbox depending on whether an xml value contains the word disabled but I'm getting an error as follow. Does anyone know how I can accomplish this or see something wrong with how I'm doing it? The XML value is either blank or contains the word "DISABLED"

error:

System.InvalidCastException was unhandled by user code
Message=Conversion from string "" to type 'Boolean' is not valid.
Source=Microsoft.VisualBasic
StackTrace:

[Code]....

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