Question

Retrieve data from ComboBox

Asked by: chayahd99

Hi Folks,

In my app I display in a ComboBox data from a DB table which includes 2 columns (ID, VAL).
In the ComboBox I display the VAL, but once it's selected I would like the ID (to use in a query) instead of the actual selected VAL.
How do I retrieve the ID, hopefully without another query?
Do I need to populate the ComboBox differently?

Currently I populate the ComboBox like this:

            while (objDR.Read())
                form2.cbCatagory.Items.Add(objDR.GetString(1));

Thanks in advance.

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Asked On
2006-08-21 at 23:38:01ID21962525
Tags

data

,

from

,

combobox

,

retrieve

Topic

C# Programming Language

Participating Experts
2
Points
0
Comments
6

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Answers

 

by: chayahd99Posted on 2006-08-22 at 01:38:07ID: 17361900

I just found most of the solution at: http://www.dotnet247.com/247reference/msgs/18/92329.aspx

My only problem is that I can't seem to retrieve the ID from the dataReader (objDR).

objDR.GetString(1) returns VAL. How do I get the ID?

Thanks.

 

by: chayahd99Posted on 2006-08-22 at 02:12:06ID: 17362061

Seem to have solved this to.

objDR.GetInt32(0) is the solution.

I kept on receiving an error due to not reading the column properly from the dataReader.

 

by: gauthampjPosted on 2006-08-22 at 05:45:12ID: 17363179

can u populate a datable with the reader
then ur problem would be easily solved

ACombo.DataSource = ADataTable

Acombo.DisplayMember = "VAL"
Acombo.ValueMember = "ID"

 

by: gauthampjPosted on 2006-08-22 at 05:48:34ID: 17363213

the advantage with this is that u dont have to loop through the reader to add alla the values

u could fill a data table with a sqlconnection and sqladapterr as shown below

System.Data.SqlClient.SqlDataAdapter Aadpter  
= new System.Data.SqlClient.SqlDataAdapter();

Aadpter.SelectCommand
= new System.Data.SqlClient.SqlCommand
(YourQuery,YourConnection);

Aadpter.Fill(ADataTable);

 

by: CetusMODPosted on 2006-08-30 at 14:19:23ID: 17424227

Closed, 50 points refunded.
CetusMOD
Community Support Moderator

20120131-EE-VQP-002

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