Cannot convert from out System.Guid? to System.Guid

I’m trying to parse string into nullable guid. Depending on the TryParse result nullable guid should store value or be null.

private Guid? GetData()
{
    string carName = "Volvo";
    Guid? data = Guid.TryParse(carName, out data) ? (Guid?)data : null;
    
    return data;
}

I’m getting a compile-time error on out data with message

Cannot convert from out System.Guid? to System.Guid

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>Solution :

You need to use a different variable name:

Guid? data = Guid.TryParse(carName, out Guid _data) ? (Guid?)_data : null;

Currently, you use data for both

• the end result (a Guid?) and
• the out parameter of TryParse (which needs to be a Guid, not a Guid?).