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2 Items, 1 Pages 1 |< << Go >> >|

	pafo
	Asp.Net User

2 treeview problems

5/28/2007 6:32:02 AM

0/0

Hello,
I have 2 problems with the treeview control.
My database where i save the treeview nodes looks like this:
ID - PARENTID - TITLE
1 -      NULL    - Test1
2 -      NULL    - Test2
3 -      NULL    - Test3
4 -        2        -   Test4
5 -        4        -   Test5
6 -        1        -   Test6
7 -        4        -   Test7
8 -        5        -   Test8

This is just an example to illustrate the problem.

1)
I am exporting this list above to a file and then i am trying to import it to a new database, any ideas? since all the ids and parentids will be diffrent in the new database, any links or something of how to import it?

2)
This list i am also writing to a Word document, along with some text from another table. Now my question is, how can i number the Rows in a correct order to be printed on a word document?
I want something like this:

1) Test1
1.1) Test6
2) Test 2
2.1) Test 4
2.1.1) Test 5
2.1.1.1) Test 8
2.1.2) Test7
3) Test 3

How can i loop thru the DataRow[] and get the information like this and add it to a ArrayList (or something that you can loop and print it to a word document, it should be added in this order)?
I need the id and "1)" + name to be saved, perhaps a small class that you then copy to the arraylist. But how to loop thru it and get the numbers?

Patrick

	Amanda Wang - M
	Asp.Net User

Re: 2 treeview problems

5/31/2007 8:51:33 AM

0/0

Hi,

1) I think you may set the ID column as an Indentity column. Please ensure you don't set it as an Indentity column. Thank you. 2) I suggest you use recursion . You can just reference the following code as an example.

// Assuming that dsMenu is the DataSet contains your data. Involk this method with 0 as its parameter at the first time.
private void Print(int parentLevel)
    {
        try
        {
            DataRow[] drCurrentLayer;
            if (parentLevel == 0)//if it?s the top level
                drCurrentLayer = dsMenu.Tables[0].Select("PARENTID = " + DBNull);
            else
                drCurrentLayer = dsMenu.Tables[0].Select("PARENTID =" + parentLevel.Value);

            if (drCurrentLayer == null || drCurrentLayer.Length <= 0)
                return;
            
            foreach (int i=0; i< drCurrentLayer.Length; i++)
            {
                //
                //TODO: Add your relevant logic here
                //
                Print (Convert.ToInt32(drCurrentLayer[?ID?]));// use the ID of the current record
            }
        }
        catch
        {
            throw;
        }
    }

Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Yours sincerely,
Amanda Wang
Microsoft Online Community Support

2 Items, 1 Pages 1 |< << Go >> >|

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