can't get this to work The drop down list is populated when the program is run ( by reading in records from a table) I add a new item with text ' ' and value = '1 but when I step through the code, the first item always has an index = 0 even though I've just set it to -1 Don't understand how to change this Even if no item is selected, the index is = 0 which means if no item is selected, the first item will always be selected

Or... Here we have 2 array list ArrList1 -------- arrayA1 * arrayA2 * arrayA3 * arrayA4 * -------- ArrList2 -------- ArrayB1 * arrayB2 * arrayB3 * arrayB4 * -------- *= 1 dimensional array. Lets say you want to compare arrayA2(n).Length with arrayB2(n).Length. But before we compare the values, we need to compare the bounds of arrays. ----------------------- Dim x as integer = ArrList1.GetUpperBound(0), _ y as integer = ArrList2.GetUpperBound(0) if x = y then For i as integer = 0 to x If ArrList1(i).Length = ArrList2(i).Length Then 'put your code here End If Next End If You can't compare "arraylist1(r) = arraylist2(r)" because the value on both side is an array, not property of array. Every array has properties(Length, UpperBound, LowerBound, i;e) I mean you can't compare your gf with your friend's gf, except they properties such as skin color, cute face, height, etc. ;P Here sample code to copy an array from array list to a new array: Dim newarr As Object() = ArrList1(1).Clone Good Luck -- modified at 4:59 Friday 4th August, 2006

Replace objectType with the type of object you have stored in the ArrayList, or better yet if you use .NET 2.0 use List rather than ArrayList. So for example, if you have a DataRow stored in the ArrayList, do this: ArrayList arrList1, arrList2; //stuff to instantiate your arraylists if (((DataRow)arrList1[0])[0].ToString() == ((DataRow)arrList2[0])[0].ToString()) { // do stuff } But with Lists do like this: List list1, list2; //stuff to instantiate your lists if (list1[0][0].ToString() == list2[0][0].ToString()) //do stuff

thanks

It looks like Pivot Table... I don't know if Datagrid Control in VB can does. How about this.. you unbound your datagrid with your datasource.. You will create several collection/array to act as buffer/dataset for your data Then you will put that data into datagrid cell like the way you want to. It make sense?

Are you taking about a ComboBox or ASP.NET Control DropDownList No need for the Loop Just bind the Datasource to the arraylist. dlIdNums.DataSource = idnums dlIdNums.DisplayMember = "name" or DataTextField(ASP) dlIdNums.ValueMember = "value" or DataValueField(ASP) Check Help if I am wrong it is in there.

thanks!

thanks, but I can't find anything like a Create Button. By project folder - do you mean the folder .VBPROJ? When I right click on properties I the tabs are GENERAL SECURITY and SUMMARY. I check all the other folders , dont see any create button

To pass the dataset from the class to the form you will need to modify the parameters of your method. Instead of just passing the ID string, you will also need to pass the dataset. But you will have to pass it by reference instead of by value. (passing by value will never change the original variable on the form side, by reference will) So it will look more like this: Public Sub MyMethodName(ByVal myID as String, ByRef myDataSet as DataSet) That should get you started.

I don't know why my properties windows disappeared, but found that if I go to TOOLS, OPTIONS, GENERAL and then click on RESET WINDOWS LAYOUT, they come back Thanks