Display data from database into textbox that matches listbox values

[vishalrane]

Suppose der is one database name Customer which have columns like Cust_ID,Cust_Name,Cust_Mob,Cust_Address

And on Form der are one list box which contains all Cust_Id from database
and 4 textbox
so when user click on the listbox having id as 1 it should display name, mob and address of cust_id 1 in 4 textbox respectively pls help me asap........

Thanks in advance....

You should probably try to learn .Net.

This should help with your current issue.
http://www.w3schools.com/aspnet/aspnet_dbconnection.asp

[vishalrane]

Private Sub ListBox1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.Click
dbSource = "Data Source=XX-B4C521B850\SQLEXPRESS;Initial Catalog=TT;Integrated Security=True"

con.ConnectionString = dbSource
con.Open()
sql = ""
sql = "Select Cust_Fn from Cust where Cust_Id='" & ListBox1.SelectedIndex & "' "
da = New SqlClient.SqlDataAdapter(sql, con)
da.Fill(ds, "Cust")
con.Close()

TextBox1.Text = ds.Tables("Cust").Rows(0).Item(0)
End Sub

Pls help the problem is dat when i run d form and if i select Cust_ID=1
it shows me name of Cutomer having ID 1
but if i click 2 it does not show the name of Cust_Id=2 but it shows Name of Cust_Id=1 only pls help me out

Try using OnSelectedIndexChanged event instead of OnClick. Why is your ID column a string? Also what does Select Cust_Fn from Cust where Cust_Id='2' return from the database?

[vishalrane]

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
        dbSource = "Data Source=xx-B4C521B850\SQLEXPRESS;Initial Catalog=TT;Integrated Security=True"

        con.ConnectionString = dbSource
        con.Open()
        sql = "Select Cust_Fn from Cust where Cust_Id='" & ListBox1.Text & "'   "
        da = New SqlClient.SqlDataAdapter(sql, con)
        da.Fill(ds, "Cust")
        con.Close()

        TextBox1.Text = ds.Tables("Cust").Rows(0).Item(0)
    End Sub

It does not work
the line

sql = "Select Cust_Fn from Cust where Cust_Id='" & ListBox1.Text & "'  "

says dat select Cust_Fn(Customer FIRSTName) from Cust(CUSTOMER) WHERE Cust_Id(Customer_ID)=listbox1.text

For the dropdown list, did you set the AutoPostBack property to true? When you run Select Cust_Fn from Cust where Cust_Id='2' against the database WHAT DOES IT RETURN? Don't try to give me an explanation of what you have, I can read the query, I know what it should do, but is it actually doing it is the question.

[vishalrane]

first of all sorry dont take me wrongly!!!!!

I am using listbox and not combobox and its windows application and not web application for which i have to set autopostback propery=true

Following is my database structure
Cust_ID(Column1)
1
2
3
4
Cust_Fn(Column2)
xyz
abc
sdd
ddf

when i select 1 from listbox it shows me xyz in textbox but when i select 2 insted of abc it shows me xyz.....

Thanks ur help really appreciated....

[saj_amo]

You should do this .

1.
when you fill listbox you should set list box value on Cust_ID

like: ListBox1.ValueMember = "CusT_ID"

2.

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

query = "select Cust_ID,Cust_Name,Cust_Mob,Cust_Address from table where Cust_ID ='" & ListBox1.SelectedValue & "'"

Dim fill As New DataSet
fill = ObjSQLQuery.PopDataSet(query)
If fill.Tables(0).Rows.Count >= 1 Then
textbox1.text=fill.Tables(0).Rows(0)("Cust_ID").ToString
textbox2.text=fill.Tables(0).Rows(0)("Cust_Name").ToString
textbox3.text=fill.Tables(0).Rows(0)("Cust_Mob").ToString
textbox4.text=fill.Tables(0).Rows(0)("Cust_Address").ToString
Else
Msgbox("No Record Found")
End If
End Sub

Hope It helps you...

[vishalrane]

PopDataSet is a memeber of whom
How to declare ObjSQLQuery

I have used popdataset in developing windows application with c#, had never used it in windows application with vb
How to use it in windows application with vb....
Pls help!!!!

[saj_amo]

So you must post this in C# forum dear this is vb.net forum.

[slaith]

I've never liked using datasets and stuff. Not comfortable with automated things. maybe I am backward in code.. You could try direct SQL results and manually set the fields

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
    dbSource = "Data Source=xx-B4C521B850\SQLEXPRESS;Initial Catalog=TT;Integrated Security=True"
     Dim db_command as new OleDBcommand, reader as Oledbreader 'or whatever method you are using.
    con.ConnectionString = dbSource
    con.Open()
    db_command.commandtext = "Select Cust_Fn from Cust where Cust_Id=" & ListBox1.SelectedIndex 'Dropped the single quotes
    db_command.connection=con
     reader=db_command.executereader()
    if (reader.read()) 
    TextBox1.Text = reader("cust_fn")
    reader.close()
    con.close()
    End if
    End Sub

[vishalrane]

No ur taking mw wrongly its vb.net doubt only but how to declare "ObjSQLQuery"
as we
for eg :
Dim ObjSQLQuery As ?

[slaith]

Don't know what you are talking about. I use the OleDbCommand(SYstem.Data.OledB.OledbCommand) or whatever method you use for connecting. System.Data.OleDb.Oledbreader for SQL results reader.

[vishalrane]

@saj
No ur taking mw wrongly its vb.net doubt only but how to declare "ObjSQLQuery"
as we
for eg :
Dim ObjSQLQuery As ?

[saj_amo]

ObjSQLQuery is the class where PopDataSet is the function which returns ds this the PopDataSet function :

Public Function PopDataSet(ByVal SQLStr As String) As DataSet
Dim ds As New DataSet

If ConnectionClass.SQLCon.State = ConnectionState.Closed Then
ConnectionClass.SQLCon.Open()
End If
adp = New SqlDataAdapter(SQLStr, ConnectionClass.SQLCon)

adp.Fill(ds)
Return ds
End Function

hope you get it...

[vishalrane]

Dis is what i wanted d simplest way....
But thanks 4 ur help...

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim Connect As String = "Data Source=XXXX-578AC20261\SQLEXPRESS;Initial Catalog=TT;Integrated Security=True"
        Dim con As New SqlConnection(Connect)

        Dim SQL As String = "SELECT * FROM Cust"
        Dim cmd As New SqlCommand(SQL, con)

        Dim adapter As New SqlDataAdapter(cmd)
        Dim dsCust As New DataSet()
        con.Open()
        adapter.Fill(dsCust, "Cust")
        con.Close()
        'gridDB.DataSource = dsCust.Tables("Cust")
        txtFirstName.DataBindings.Add("Text", dsCust.Tables("Cust"), "Cust_Fn")
        txtLastName.DataBindings.Add("Text", dsCust.Tables("Cust"), "Cust_Ln")
        lstID.DataSource = dsCust.Tables("Cust")
        lstID.DisplayMember = "Cust_ID"
        'dtBirth.DataBindings.Add("Value", dsCust.Tables("Cust"), "BirthDate")
    End Sub
End Class

[saj_amo]

This is not the simplex way dear thats the lengthy way. you cant write whole code again if you want any data in the other form easy way to call a function again and again when you want but if you are ok with it no problem best of luck dear!

[vishalrane]

I am getting what you are saying but currently this is the most simple currently now because of only one form....
But the code given by you is the proper code ....

[saj_amo]

its ok dear ALL the best ov luck to you.