Question

Combobox using databinding?

Asked by: Arka3L

I have a combobox that I am trying to populate with a list of people who are saved in a column in my database table. I tried fiddling with the built in datasource options you get when you first place the box and I can preview the data with the preview option but it just DOESN'T want to put the results list in my box and i'm starting to pull my hair out to say the least.

I've gone through the settings and changed every option and can still see the preview of my names. All I can say is that the Target Dataset drop down menu in the Preview Screen is greyed out and the Parameters section on the right says No parameters are defined on the selected object.

How come i can preview the darn thing but it can't populate the combobox when i run my program? What am I missing?

I also tried to code the results into the list with a data reader which worked but with the method I used it's only pasting the first name of the list in the box and not adding the rest of the names to select from. But i can understand why when you look at the code i've used:

Dim strSQL As String = "SELECT * FROM Doctors"
        Dim cmdSelect As New Data.SqlClient.SqlCommand(strSQL, dbConnection)
        Dim sqlReader As Data.SqlClient.SqlDataReader = cmdSelect.ExecuteReader()
 
        If sqlReader.HasRows Then
            sqlReader.Read()
 
            doctorSelect.Text = sqlReader("Doctor").ToString
 
        End If
                                  
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Asked On
2008-12-03 at 19:07:58ID23955611
Tags

combobox

,

vb.net

,

vb

,

databinding

Topics

Microsoft Visual Basic.Net

,

.NET

,

Visual Studio

Participating Experts
1
Points
500
Comments
7

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Answers

 

by: Arka3LPosted on 2008-12-03 at 19:10:24ID: 23092386

Oh, and I'm using VS 2005 and SQLServer 2005

 

by: jpaulinoPosted on 2008-12-04 at 13:41:58ID: 23099794

I'm sorry ... i didn't understood you question, but why don't you fill the combobox using code ? Do you need help with that ?

 

by: Arka3LPosted on 2008-12-04 at 17:21:44ID: 23101283

In short, the built in data bound options don't seem to work. I can preview the table and it works, but when I run the program it doesn't list the names.

I've tried coding using datareader but it doesn't function the way i need it to.

I need the combobox to fill with a list of names from my database table. I also need ideas on the best option to be able to select multiple names if I want results for more than one doctor.

 

by: jpaulinoPosted on 2008-12-04 at 23:16:30ID: 23102920

>> I need the combobox to fill with a list of names from my database table.


But you also want to select multiple items & this is not possible with the regular combobox. You can use a checkboxlist, listview, 3rd party control or even you can popup a new form to select multiple itens and display only the names (comma separated). This is just some ideas.
 
What you would like?

 

by: Arka3LPosted on 2008-12-05 at 08:20:25ID: 23106032

Well, now i know that it wont work with combobox that definitely helps a little.... However I'm really needing to use a drop down menu of some sort due to limited space and neatness. Is there no drop down format where you could also use checkboxes?

If not then i might have to rethink how i would like this to look.

If you can produce some code that may work with any list then that would be great, but as I said I hope that we can work something out with my current design.

I appreciate your help.

 

by: jpaulinoPosted on 2008-12-05 at 17:30:36ID: 23110198

 

by: Arka3LPosted on 2008-12-05 at 18:27:18ID: 31522578

Thanks bud

20120131-EE-VQP-002

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