Can I cast from DBNull to a Nullable Bool in one line?

Question

I have a database query which will either return NULL or a boolean (bit) value.

I wish to store this value in a variable of type Nullable<

Answer 1

I use extension methods for this issue.

var isRestricted = dataRecord.GetNullableValue("IsRestricted");

There is code of GetNullableValue method:

    public static Nullable GetNullableValue(
        this IDataRecord record, 
        string name) where TValue : struct
    {
        return record.GetValue>(name);
    }

And there is also a simple code for GetValue method:

        private static TResult GetValue(
        this IDataRecord record,
        string name)
    {
        var result = record[name];
        return !result.Equals(DBNull.Value) ? (TResult)result : default(TResult);
    }