Code Review: Inserting a DBNull value into a database (4 Solutions!!)

Code Review: Inserting a DBNull value into a database (4 Solutions!!)

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C# : Column does not allow DBNull.Value - No KeepNulls - Proper Column Mappings
C# : Column does not allow DBNull.Value - No KeepNulls - Proper Column Mappings
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Solve error Object cannot be cast from DBNull to other types in VB.net

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