[Solved] operator == can not be applied to operand of type ‘system.collections.generic.list’ and list [closed]

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The problem here is you are comparing a List<string> and a string for equality. There is no such comparison available in C# hence an error is produced. If you are attempting to determine if the string is present in the list then do the following instead

if (id.Contains(Convert.ToString(row[tid])))

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solved operator == can not be applied to operand of type ‘system.collections.generic.list‘ and list [closed]