form.vb[設計]
TabControl1有{TabPage1、TabPage1}兩各頁籤
在{TabPage1}頁籤內有TextBox1
在{TabPage2}頁籤內有TextBox2
Button1
---------------------------
form.vb
form1_load()
Dim cn As SqlConnection = New SqlConnection("user id=sa.......................)
Dim da As SqlDataAdapter = New SqlDataAdapter
("select * from packettable", cn)
Dim ds As DataSet = New DataSet
Dim dt As DataTable = New DataTable
cn.Open()
da.Fill(ds, "dt")
TextBox1.DataBindings.Add("text", ds, "dt.packet_name")
TextBox2.DataBindings.Add("text", ds, "dt.receive_date")
cn.Close()
-------------------------------
Button1_Click
TextBox1.Clear()
TextBox2.Clear()
------------------------------
為什麼繫結後我按button1再切換TabPage2頁籤,TextBox2的資料還在~
在debug內textbox1 and textbox2 都是""了
請問要如何解決呢~~謝謝
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