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I have a datatabel, in which I want to find any duplicated record(for example, the mobile phone number). I use following code in LINQ:
var list_mobile = dataTable_QueryResult.Rows.OfType<DataRow>().Select(x => x["mobile"].ToString());
var q_mobile = from x in list_mobile
           group x by x into g
           let count = g.Count()
           orderby count descending
           select new { Value = g.Key, Count = count };
 
foreach (var x in q_mobile)
{
    if (x.Count > 1)
    {
        Label_Alarm.Visible = true;
    }
}

It comes an error when some rows have been deleted - visiting the row that has been deleted. I want to use the Where() command to exclude those deleted rows, but I don't know how to code it in LINQ? Could anyone help me this ? Thanks!
Posted 21-Nov-12 15:14pm
daiwuju977

1 solution

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Solution 1

Hi,

I think RowState should work in this case,

Please try below code,
dataTable_QueryResult.Rows.OfType<datarow>().Where(s => s.RowState != DataRowState.Deleted).Select(x => x["mobile"].ToString());</datarow>

Let me know if it is not working for you, although i have not tried yet.

thanks
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