Data Gridview contents as per the selection of Combo box value.

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I want to show Data Gridview contents as per the selection of Combo box value.

E.g: I have Supplier combo box , as per the value I am selecting from it related information of supplier will display in Data Gridview control in .net.

Posted 4-Dec-12 4:06am

Yogi ,Pune

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Dave Kreskowiak · Answer 1 · 2012-12-04T04:26:00

Solution 1

This comes down to getting the value of the combobox and putting it into an appropriate SQL SELECT statement to get the database information into a datatable. THen you just set the DGV DataSource property to the datatable returned.

Posted 4-Dec-12 4:26am

Dave Kreskowiak

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Yogi ,Pune 4-Dec-12 23:02pm

Please provide code for the same.

Dave Kreskowiak 5-Dec-12 0:20am

Nope. I'm not writing you're code for you. It's not that hard. You handle the SelectedValueChanged event of the Combo and use the Value in your SQL as a parameterized query. I just gave you everything you need to Google and do a little research on your own.

Yogi ,Pune · Answer 2 · 2012-12-05T04:20:00

I already tried following code but system give me Error on sql query Object reference not set to an instance of an object

Dim ds As New DataSet

Str = Select p.PO_no,p.Date,s.Sup_name from PO_Header p, Supplier_Master s Where p.Sup_no = '" & cmbItemName.SelectedValue.ToString() & "'"

Dim da As New SqlDataAdapter(str, SetCon())
da.Fill(ds, "New")
<pre lang="vb">DataGridView1.DataSource =ds.Tables(0).DefaultView</pre>

Is there is any thing wrong in my code.

ACE_ · Answer 3 · 2012-12-08T02:13:00

1. Create sub

VB

Private Sub refresh_data()
  Dim Ds as new dataset
  Dim Query as String = "Select * from Supplier_master where Supplier_ID = '" & cmb_supplierID.text & "'"
  Dim SQL_Adapter as new SqlDataAdapter(Query,Connection)

  SQL_Adapter.fill(Ds)
  DataGridView1.DataSource = Ds.Tables(0)
End Sub

2. in event combo box selected change

VB

call refresh_data()

Data Gridview contents as per the selection of Combo box value.

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