How to write inner join query using combobox in vb.net

Question

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VB

con.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source= E:\VB Project\Tansportation\Transport2003.mdb"
       con.Open()

       sql = "SELECT * FROM TblBillStatmentEntry inner join Rates on Rates.ID=TblBillStatmentEntry.FromID"

       da = New OleDb.OleDbDataAdapter(sql, con)
       da.Fill(ds, "Transport2003")

       Try

           ComboBox1.SelectedValue = sql

My question is I want to retrieve data from two tables using combobox for selecting
values of Rates Table but can not display other column data when i select any value from combobox.

Posted 28-Feb-15 13:42pm

manish joshi

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Comments

John C Rayan 1-Mar-15 3:27am

You have to specify only the columns you need in the sql. Use datasource , datatextfield and datavaluefield properties to set the Rows from your sql and what needs to be shown in your combo box and what needs to set for the selected value.

manish joshi 1-Mar-15 9:20am

Actually I want to populate textbox using combobox.selectedvalue.
suppose if i select Pundi village in the combobox then the value of colomun name "To" and "Rate" in the Rates Table will display in the textbox1 and textbox2. I want to get all the data from Rates Table, Bill statement Table, PartyMaster. All the Three Table.

John C Rayan 1-Mar-15 10:11am

Right! Set the DataFieldValueField and DataTextField to the Id and Name to the item (Pundi Village fields). At server side selectedIndexChanged() event, get the id value and fetch the To and Rate values from the dataadapter. You could use dataset if you want

Maciej Los 1-Mar-15 6:03am

Please, be more specific and provide more details...

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