在asp.net vb.net中为文本框保留事件

Question

I'm looking for a solution for the textbox leave event in asp.net vb.net. I have searched but Didn't get the right solution, what I'm actually doing is.

I have textbox in which a user write the Product Id number however the focus moved from the textbox then all the related data should be displayed on the concern textboxes .

Answer 1

Their is no textbox_lostfocus event or textbox_keydown event available in ASP.Net . You can do the same by writing the code in TextChanged event of the Text Box. Your code will be like the following :

  Private Sub txtamount_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtamount.TextChanged
   //Your code comes here
   MsgBox(txtamount.Text)// sample display
  End Sub

This code will give result only when you add AutoPostBack ="true" with your Textbox design.

ie., the ASP code for the textbox will be :

<asp:TextBox ID="txtamount" runat="server" AutoPostBack ="true"  />

Hope that this is actually your are asking for.