我设法将数据从SQL表中的列添加到ComboBox中,但是我需要从头到尾的行才能显示在其余文本框中。(我希望我的措词正确)。
这是我目前的代码:
Imports System.Data.SqlClient Public Class Form1 Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load Dim con As New SqlConnection("Data Source=xxxx;Initial Catalog=ltLeavers;Integrated Security=True") Dim da As New SqlDataAdapter("SELECT * FROM dbo.mytable", con) Dim dt As New DataTable da.Fill(dt) ComboBox1.DisplayMember = "DISPLAY_NAME" ComboBox1.DataSource = dt End Sub
上面的方法没有问题,所有项目都添加到了ComboBox中,但是我需要其他两列的相应行(即EMAIL_ADDRESS和DEPARTMENT)从ComboBox中选择的内容添加到TextBoxes中。
在SelectedIndex_ChangedComboBox事件下;输入以下代码。
SelectedIndex_Changed
Dim dt As New DataTable Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load Dim con As New SqlConnection("Data Source=xxxx;Initial Catalog=ltLeavers;Integrated Security=True") Dim da As New SqlDataAdapter("SELECT * FROM dbo.mytable", con) da.Fill(dt) ComboBox1.DisplayMember = "DISPLAY_NAME" ComboBox1.DataSource = dt End Sub Private Sub ComboBox1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ComboBox1.SelectedIndexChanged Textbox1.Text = CStr(dt.Rows(ComboBox1.SelectedIndex)("EMAIL_ADDRESS")) Textbox2.Text = CStr(dt.Rows(ComboBox1.SelectedIndex)("DEPARTMENT")) End Sub
您将需要在表单的load事件之外声明数据表dt,以便组合框的SelectedIndex_Changed事件可以看到它。