<asp:dropdownlist id=lstForeColor runat="server" Height="22px" Width="194px" AutoPostBack="True"></asp:dropdownlist>
Private Sub ControlChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) _
'YOUR VALIDATION CODE HERE
Private Sub DropDownList1_SelectedIndexChanged(ByVal sender As System.Object,_
ByVal e As System.EventArgs) Handles DropDownList1.SelectedIndexChanged
'Implement your code (OR) follow the next code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As _
System.EventArgs) Handles Button1.Click
TextBox1.Text = "You Selected:" & DropDownList1.SelectedItem.Text
Write your code in dropdownlist1_selectedIndexChanged event to show the records in grid view for a particular value selected from dropdownlist (or) Write the code in the button by getting the text from dropdownlist as shown above.
Please clarify with more details what you are expecting if it is not suitable to your code.
Hello i have a script that lets the user to take a photo and then upload it -this was the thread i created https://www.daniweb.com/programming/web-development/threads/508651/how-to-open-camera-and-take-a-photo-scriptBut the photo returns in low res ...