link between combo box and textbox

[squrel]

Hi..
i have a problem here...
i have a master table called casemaster and in tht i have one combobox called courtId and its filling from the court table.. i need to make a textbox infront of tht and it has to fill the court name from the court table... whenever the user click on the courtid in tht dropdown of combobox tht name of the court automatically has to appear in tht textbox... how can i make a link between the combobox and the textbox... both of them has to be filled from my court table...
can anyone give me a code sample...
plz i need a help here and very urgent
thank u very much

[debasisdas]

you need to pass the court_id from the combo to the db query dunamically and from that fetch the court name.

[Frinavale]

You should implement a method that handles the ComboBox's Click Event.
The Click event occurs whenever the user clicks ComboBox.
From there you can determine which item has been selected, you can retrieve the court name from the database, and put the court name in the text box.

[squrel]

thank u very much for ur help.. bt can u give me any code sample plz
i wil appricate tht
thank u in advance

[squrel]

ok i m putting this code bt not working and my textbox is empty..
i dont knw if i m doing rit... when i debug the line which is bold it shows "" and in my textbos it comes 0 ..... where i have to change
can u help me here plz
thank u

Private Sub cmbCourtId_Click()
txtCourtId.Text = GetCorrespodingField("Court", "Courtid", "courtid", cmbCourtId, False)
Dim cn As String
  If cmbCourtId.Text = true  Then
    'the following line is bold
    cn = Val("select courtname from court where courtid = cmbcourtid.text")'<-----bold line---
    Text1.Text = cn
  End If
End Sub

[debasisdas]

i don't understand your code .

what does GetCorrespoding Field do ?

[squrel]

the GetCorrespoding Field is filling the combobox from my court table to my master table... tht is not the problem the if loop is the problem... the line which is bold is coming zero... how can i get the value of courtname in tht line?

[squrel]

can anyone check my code and tel me wht changes i have to make in tht line.... need help here

[debasisdas]

try this

rs.Open "select court_name from court where court_id = '" & combo1.text & "'", con, adOpenDynamic, adLockOptimistic

next populate the textbox from recordset.

[squrel]

i dont think i need to open the rs here... its a simple combo box and textbox... i am changing my code to this bt rhe bold line is telling me "type mismatch"
can anyone tel me why?

Private Sub cmbCourtId_Click()
 Dim Rs       As New ADODB.Recordset
txtCourtId.Text = GetCorrespodingField("Court", "Courtid", "courtid", cmbCourtId, False)
Dim cn As String
If cmbCourtId.SelectedIndex <> -1 Then
'following line is bold
cn = Str("select courtname  from court where courtid = " & cmbcourtid.text)
Text1.Text = cn
End If
End Sub

[debasisdas]

how have you planned to fetch data from database without opening the recordset ?

[squrel]

if i open the recordset also still i m getting error
i did wht u told me to do bt still the text is not showing in my textbox...
tht is my problem
i opend the recordset as u told me bt the textbox is empty
tel me how to get it in the textbox

If cmbCourtId.Text <> -1 Then
Rs.Open ("select courtname from court where courtid = '" & cmbCourtId.Text & "'"), adOpenDynamic, adLockOptimistic

then after tht wht i have to do??? whtever i m doing it tels me type mismatch

[QVeen72]

Hi,

You need to specify Connection object here :

Rs.Open ("select courtname from court where courtid = '" & cmbCourtId.Text & "'"), Conn, adOpenDynamic, adLockOptimisti c

Regards
Veena

[squrel]

Hi Veena,
Ok i wil do tht bt then how can i get tht in my textbox?
i have combobox called cmbcourtid and by selecting the index from tht i want the particular courtname appear in my textbox called text1 automatically.. i open the connection bt then how i get tht in my textbox?
can u help me in tht... whtever i m trying is telling me type mismatch... coz its a string
conn i can not put its giving me error as variable not define.. i put Db its working.. and the line after tht when i want to assign tht to a variable to get the courtname on the textbox.. how should it should be??? is my line rit after the rs.open??? i dont knw how it should be?
can u help in tht? coz cn is a string
thank u

Private Sub cmbCourtId_Click()
Dim Rs       As New ADODB.Recordset
txtCourtId.Text = GetCorrespodingField("Court", "Courtid", "courtid", cmbCourtId, False)
Dim cn As String
If cmbCourtId.Text <> -1 Then
If Rs.State = adStateOpen Then Rs.Close
Rs.Open ("select courtname from court where courtid = '" & cmbCourtId.Text & "'"), Db, adOpenDynamic, adLockOptimistic

cn = Rs.Fields( ).Value

Text1.Text = cn
Text1.Refresh
End If
End Sub

[debasisdas]

I think i am wasting my time with you.

you seem to lack the basic knowledge of database handling in VB.

better you go through the database related articles in the insight section of VIsual Basic for some sample code.