auto populate this textbox using vb.net

[kalboako1987]

hello guys

Im trying to autopopulate my form from a table in my database called Enrollment.it will fill the textboxes in my form whenever the id number typed in the textbox is existing in my database.. the selection will be based in the highest EnrollmentID whatever is the highest EnrollmentID that matches with id number will automatically fill the textboxes. i put these code inside my idnumber textbox by double clicking it. can somebody help me please...


i need all the advice that you can give me..

 
Private Sub populate()
        Dim xx As DataTable
 
 
        xx = db1.doQuery("select idno from Enrollment where idno='" + Me.txtidno.Text + "'")
        If xx.Rows.Count <> 0 Then
 
            xx = db1.doQuery("select Firstname, Middlename, Lastname, level1, preschoollevel,primarylevel,secondarylevel,tuitionfee, amountpaid,tobwithd,tobwithoutd from Enrollment where Firstname='" + Me.txtfirstname.Text + "', Middlename='" + Me.txtmi.Text + "', Lastname='" + Me.txtlastname.Text + "', level1 = '" + Me.ComboBox1.Text + "', preschoollevel='" + Me.cmbpreschool.Text + "', primarylevel='" + Me.cmbprimary.Text + "', secondarylevel ='" + Me.cmbsecondary.Text + "', tuitionfee='" + Me.TextBox5.Text + "', amountpaid ='" + Me.txtpreviousamountpaid.Text + "', tobwithd= '" + Me.txtbal.Text + "', tobwithoutd = '" + Me.txtbal.Text + "'")

[Shashi Sadasivan]

Do you want to populate a datagridview?
or details view?

In Short, how do you want your data to be shown on the form?
You just cant put it there, can you?

[Jugmike]

Do you want to autopopulate only the textboxes as seen in your code then you just need to call the event automatically every time the id is entered by using the onblur event of the ID textbox.

[Shashi Sadasivan]

and change the comma in the sql string to AND

sql syntax is usually

Select * from tableName where field1 = value1 and field2 = value2

and not

Select * from tableName where field1 = value1 ,field2 = value2

[debasisdas]

You need to populate the data in the textbox from database.

[Shashi Sadasivan]

are you using any sort of typed datasets?
in that case drag the fields from the data source view to your form.

and you would not have to do anything else

only if this is in windows forms