How do I get the id by referring from a DDL

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hi plz i need some help in this question
I have 2 tables
person ( prsID (PK) , name , fname , DOB .... )
claimant (prsCLMID (FK) , job ... )
I have a drop downn list containing prsID, name + ' ' + fname selected from table person (only name + ' ' + fname is populated) in DDL )
I need to get the ID for the selected value of DDL from table client that contains personID as foreign key (how should I check the name from table person and get his ID )

What I have tried:

i have tried

Dim dadptclaim As New SqlDataAdapter("SELECT prsid, fname + ' ' + name as na FROM person join claimant on prsID=prsCLMID WHERE (prsID =prsCLMID)", sql)

       dadptclaim.Fill(ds, "CLM")
       claimant.DataSource = ds.Tables("CLM")
       claimant.DataValueField = "prsid"
       claimant.DataTextField = "na"

       claimant.DataBind()

Posted 27-Sep-17 5:07am

Member 13369800

Updated 27-Sep-17 5:25am

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OriginalGriff · Answer 1 · 2017-09-27T05:25:00

Solution 1

Use the ListControl.SelectedValue Property (System.Web.UI.WebControls)[^] that should return the ID.

Posted 27-Sep-17 5:25am

OriginalGriff

Comments

Member 13369800 28-Sep-17 10:49am

it didn't work
this gives me only the ID of the first element of the DDL

OriginalGriff 28-Sep-17 10:55am

If that's the selected item, then yes, it will. That's what it's supposed to do...

Member 13369800 29-Sep-17 10:22am

I think the problem is from the sql statement
how should I take only the first name from DDL(since it contains first and last name concatenated with a space) to compare it in table person to get its ID
anyway thanks for your help