I need to choose a value from a combo box and check if that exists in a table and if it does..i need to make a button glow green..
I am not sure how I have to check if the chosen value exists in that table..
can you please help me with that ?
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My code does the rest of the things that I want it to.. This is my code for the database but I am not sure how to see if the combobox chosen value exists in my master database!! Please assist!!
imports System.Data.oledb
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim objcmd As New Data.OleDb.OleDbCommand
Dim objrdr As Data.OleDb.OleDbDataReader
Dim TableName1 As String = ""
Dim query1 As String = ""
Dim cbo1 As ComboBox = Nothing
Using con As New OleDbConnection("provider=microsoft.jet.oledb.4.0;data source=C:\Documents and Settings\bashkark\Desktop\Copy of USERS.mdb")
con.Open()
For x As Int32 = 1 To 4
Select Case x
Case 1
query1 = "SELECT DISTINCT MFG FROM table1 WHERE MFG IS NOT NULL ORDER BY MFG"
TableName1 = "MFG"
cbo1 = ComboBox1
Case 2
query1 = "SELECT DISTINCT MAKE FROM table1 WHERE MAKE IS NOT NULL ORDER BY MAKE"
TableName1 = "Make"
cbo1 = ComboBox2
Case 3
query1 = "select distinct GRAPHICSCARD from table1 where GRAPHICSCARD is not null"
TableName1 = "GRAPHICSCARD"
cbo1 = ComboBox3
Case 4
query1 = "select distinct GRAPHICSVERSION from table1 where GRAPHICSVERSION is not null"
TableName1 = "GRAPHICSVERSION"
cbo1 = ComboBox4
End Select
objcmd.Connection = con
objcmd.CommandText = query1
objrdr = objcmd.ExecuteReader
cbo1.Items.Clear()
If objrdr.HasRows Then
Do While objrdr.Read
cbo1.Items.Add(objrdr.GetValue(0))
Loop
End If
objrdr.Close()
Next
End Using
End Sub
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
End
End Sub
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
Dim con As OleDbConnection = New OleDb.OleDbConnection("provider=microsoft.jet.oledb.4.0;data source=C:\Documents and Settings\bashkark\Desktop\Map Database.mdb")
Dim cmd As New OleDbCommand
con.Open()
cmd = New OleDbCommand("select * from table1 where Mfg like '%" & ComboBox1.SelectedItem & "%' and Make like '%" & ComboBox2.SelectedItem & "%' and GraphicsCard like '%" & ComboBox3.SelectedItem & "%' and GraphicsVersion like '%" & ComboBox4.SelectedItem & "%'", con)
Dim da As OleDbDataAdapter = New OleDbDataAdapter(cmd)
Try
Dim ds As DataSet = New DataSet()
ds.Tables.Add("table1")
da.Fill(ds, "table1")
DataGridView1.DataSource = ds.Tables("table1").DefaultView
Finally
con.Close()
cmd = Nothing
da.Dispose()
con.Dispose()
End Try
End Sub
End Class--------------------------------------------------------------------------------
i want it to be somewhat like this.. but using 'Mfg' which is a field in my Master DB like this is not appropriate,..can u pls suggest something ?
If (Mfg = " & combobox1.selecteditem & ") Then
Button1.BackColor = System.Drawing.Color.IndianRed
End If
