alsam
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Using Combobox selected value as parametar in SQL Command
Hi,
to simplify. I have created 2 Windows forms:
First form (named Hierarchy_load) contain Combobox control loaded with values from SQL Server database.
Second form (named Form1) represent treeview populated from SQLSerevr database.
I need to forward selected value in combobox from Hierarchy_load into Form1_load sub and according to forwarded parameter treeview will display data from database. For unknown reason my code forwards nothing to Form1_load. Please help...attached my code (forwarded value as parameter in command should be defined in "Hierarchy_load.ComboBox1. Text".
Please help how to solve this problem
Thank you for your time and effort....
Kind regards...
to simplify. I have created 2 Windows forms:
First form (named Hierarchy_load) contain Combobox control loaded with values from SQL Server database.
Second form (named Form1) represent treeview populated from SQLSerevr database.
I need to forward selected value in combobox from Hierarchy_load into Form1_load sub and according to forwarded parameter treeview will display data from database. For unknown reason my code forwards nothing to Form1_load. Please help...attached my code (forwarded value as parameter in command should be defined in "Hierarchy_load.ComboBox1.
Please help how to solve this problem
Thank you for your time and effort....
Kind regards...
Imports System.Data.SqlClient
Public Class Form1
Private con As SqlConnection
Private WithEvents cmdSelectHID As New SqlCommand()
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim DSNWind As DataSet
Dim CNnwind As New SqlClient.SqlConnection("Data Source=S_A-PC\SQLEXPRESS1;Initial Catalog=AdventureWorks;Integrated Security=True")
Dim DACustomers As New SqlClient.SqlDataAdapter
DACustomers.SelectCommand = cmdSelectHID
DACustomers.SelectCommand.Connection = CNnwind
DACustomers.SelectCommand.CommandText = "SELECT * FROM CostC1 WHERE HID = @param"
DACustomers.SelectCommand.Parameters.Add("@param", SqlDbType.NVarChar)
DACustomers.SelectCommand.Parameters("@param").Value = Hierarchy_load.ComboBox1.Text
DSNWind = New DataSet()
CNnwind.Open()
DACustomers.Fill(DSNWind, "dtCosts1")
CNnwind.Close()
DSNWind.Relations.Add("Parenttochild", DSNWind.Tables("dtCosts1").Columns("ID"), DSNWind.Tables("dtCosts1").Columns("Reports"), False)
LoadTreeView(DSNWind)
TreeView1.CollapseAll()
End Sub
ASKER
Hi,
Thanks for answer...
I lost mysef in try to understand and how to introduce this part in my code...
Could you just help me and use my attached code to adjust the same with your proposed solution...
Thank you very much....appreciate your time and effort
Thanks for answer...
I lost mysef in try to understand and how to introduce this part in my code...
Could you just help me and use my attached code to adjust the same with your proposed solution...
Thank you very much....appreciate your time and effort
ASKER CERTIFIED SOLUTION
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ASKER
Thank you.
Works perfectly.
Hope to have you as help in future.
Short, clean and now very understanable solution for me.
Thank you once more time.
Works perfectly.
Hope to have you as help in future.
Short, clean and now very understanable solution for me.
Thank you once more time.
Glad to help now and in future :-)
Public Class Form1
Inherits Windows.Form
Dim Otherform as Hierarchy_Load
Public Sub New(frm As Hierarchy_load)
OtherForm = frm
Then use this OtherForm to get the combo text