Question

I have a dataset ds and a List of ArrayList newpath i want to add(assign) ds to newpath
how is that possible.

public List<ArrayList> newpath
    {
        set { ViewState["newpath"] = value; }
        get
        {
            if (ViewState["newpath"] == null)
                return new List<ArrayList>();
            else
                return (List<ArrayList>)ViewState["newpath"];
        }
    }

i am trying with

foreach (DataRow dataRow in Ftb.Rows)//Ftb is datatable
 {
    newpath.Add(dataRow);//newpath is List<ArrayList>
 }

and

foreach (DataRow dRow in ds.Tables[0].Rows)
 {
   newpath.Add(dRow);
 } 

if i am doing like above way then i am getting the error
“The best overloaded method match for ‘System.Collections.Generic.List.Add(System.Collections.ArrayList)’ has some invalid arguments”

Please help me if in someway.. how to do that

Answer 1

I assume you want each item in newpath to contain the column values of each row?
If so, have such code instead:

foreach (DataRow dataRow in Ftb.Rows)//Ftb is datatable
{
    ArrayList values = new ArrayList();
    foreach (object value in dataRow.ItemArray)
        values.Add(value);
    newpath.Add(values);
}