C# - Check For Existing Values In Datatable?

Dec 17, 2010

if (dt.Rows[i]["Code"] == code)
{
Label lblLang = (Label)(((e.Item as GridItem).FindControl("lblLang") as Label));
lblLang.Visible = true;
}
else
{
}
}

I am adding a new language Fr-FR in the code above. fr-FR already exists in my DB's Language Table. I do not want to add duplicate values in my table. There should be only one fr-FR.

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[Code]....

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