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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...

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

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