Operator '!=' cannot be applied [closed]

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when i try to create this check condition

if (dtimg != "")

{ // }

it show following error

Error 4 Operator '!=' cannot be applied to operands of type 'System.Data.DataTable' and 'string' E:\user\Mohsin.Malik\Project\FlagProperties\code\FlagProperties\Pages\FraturePropertyDetail.aspx.cs 104 13 http://localhost/FlagProperties/

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dtimg is a DataTable... and "" is a String.

You can't compare a DataTable with string. Maybe you want to check for null?

if (dtimg != null) { // do something }

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It means that you are comparing a DataTable to a string, which is illegal in most countries.

What are you trying to do? Null check? In that case, you should use

if (dtimg != null)

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You got the answer right there:

Operator '!=' cannot be applied to operands of type 'System.Data.DataTable' and 'string'