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Hi guys, I have many Comboboxes in my form (win forms). i was setting the dropdownstyle as DropDown for Autocomplete. If we are entering the data into first combobox then related data coming into the second combobox and so on. If we are clear the data of first combobox(Autocomplete), second comboboxes also cleared. But problem is doesn't cleared the second Combobox and also remaining comboboxes.

I wrote single method for all comboboxes(Autocomplete )

Public Sub AutoCompleteDropDown(ByVal str As String, ByVal AutoDropDown As ComboBox, ByVal strText As String)
           AutoDropDown.AutoCompleteCustomSource = Nothing
           Dim dt As DataTable = GetTable(str)
           If dt.Rows.Count > 0 Then
               For Each prow As DataRow In dt.Rows
               MessageBox.Show("No " & AutoDropDown.Name.Remove(0, 3) & " exists", strText, MessageBoxButtons.OK, MessageBoxIcon.Information)
               Exit Sub
           End If
           AutoDropDown.AutoCompleteMode = AutoCompleteMode.Suggest
           AutoDropDown.AutoCompleteSource = AutoCompleteSource.ListItems
           For Each drjob As DataRow In dt.Rows
           AutoDropDown.AutoCompleteCustomSource = DropDownCollection
       Catch ex As Exception
           MessageBox.Show(ex.Message, strText, MessageBoxButtons.OK, MessageBoxIcon.Information)
       End Try
   End Sub

first calling in load page for 1st combobox and load the data to 2nd combobox in 1st combobox
Posted 11-Mar-13 23:48pm
Updated 14-Mar-13 10:40am
Maciej Los221.8K
Karthik Harve 12-Mar-13 6:09am
could show your code, where you are clearing the comboboxes on change of first combobox ?
CH Guravaiah 12-Mar-13 6:17am
in 1st combobox , i was cleared the remaining comboboxes .
Example : combobox2.items.clear(); and combobox2.text=string.empty
agnesn88 13-Mar-13 2:40am
you can download some free sample codes here--->

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