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hello,

i have one arraylist wich contain values from different database but it stores some duplicate values so, i want to remove duplicate values and store only unique value in ARRay List.

So, how can this is achievable ?


Thanks in Advance...
Mitesh
Posted

You can use a temporary container such as HashSet and adding all element to it. Finally copy the data of HashSet to ArrayList.

Cheers..
 
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ArrayList ar = new ArrayList();

for (int h = 0; h<ds1.Tables[0].Rows.Count; h++)
{
    if (!ar.Contains(ds1.Tables[0].Rows[h][0].ToString()))
    {
        ar.Add(Convert.ToString(ds1.Tables[0].Rows[h][0].ToString()));
    }
}
 
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