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Examine the Constraints collection on the table.<br />
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David
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Examine the Constraints collection on the table.

David

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What you could do is to check for &nbsp;&quot;Unique&quot; property for a particular column..this returns a bool value..If true it tells you that all the values in the this column for all rows is unique.<br />
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something like this<br />
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bool isUnique = ds.Tables[0].Columns[0].Un<wbr />ique
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What you could do is to check for  "Unique" property for a particular column..this returns a bool value..If true it tells you that all the values in the this column for all rows is unique.

something like this

bool isUnique = ds.Tables[0].Columns[0].Unique

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How can find out, if field in a DataTable is a keyfield ?
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How can find out, if field in a DataTable is a keyfield ?

Find keyfield in a DataTable

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).