hi, i got this code.

ArrayList list = new ArrayList();

for (int i=0; i < ds.Tables[0].Rows.Count; i++)

{

Tree t = new Tree();

t.Id = (double)ds.Tables[0].Rows[i][0];



if (ds.Tables[0].Rows[i][1] != DBNull.Value)

{

t.Owner = (double)ds.Tables[0].Rows[i][1];

}

else

{

t.Owner = 0;

}



if (ds.Tables[0].Rows[i][6] != DBNull.Value)

{

t.Screenshot = (string)ds.Tables[0].Rows[i][6];

}

else

{

t.Screenshot = "";

}

if (ds.Tables[0].Rows[i][7] != DBNull.Value)

{

t.LeafScreenshot = (string)ds.Tables[0].Rows[i][7]; }

else

{

t.LeafScreenshot = "";

}

list.Add(t);

}

the loop enters the details to Tree obj and then to the list collection.
the problem is that when i got the first null value from ds (dataset),
the Id value is continues to be entered OK but all the other fields (screenshot, owner etc) isn't.
i mean that after the first time of null in the ds , the if clause will always report null.
does anyone got a clue why?