VB.NET 将项目放入列表框后删除组合框中的项目
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时间：2020-09-17 15:07:03 来源:igfitidea点击:
VB.NET Remove Item in ComboBox after placing in ListBox
提问by Sishan
How can I remove item in comboBox after I choose it and put into listBox.
选择组合框中的项目并将其放入列表框后，如何删除该项目。
Here's my code. Please help me.
这是我的代码。请帮我。
Imports System
Imports System.Data
Imports System.Data.SqlClient
Public Class frmAdvancePayment
Private Sub frmAdvancePayment_Load(sender As Object, e As EventArgs) Handles MyBase.Load
lstBillNum.Items.Clear()
Dim connection_string As String = "Data Source=.\sqlexpress;Initial Catalog=CreditAndCollection;Integrated Security=True"
Dim connection As New SqlConnection(connection_string)
connection.Open()
Dim sql As String = "select BillNum from tblBillingSched where Status ='Unpaid'"
Dim da As New SqlDataAdapter(sql, connection_string)
Dim dt As New DataTable
da.Fill(dt)
cmbBillNum.DataSource = dt
cmbBillNum.DisplayMember = "BillNum"
cmbBillNum.ValueMember = "BillNum"
connection.Close()
End Sub
Private Sub btnGet_Click(sender As Object, e As EventArgs) Handles btnGet.Click
lstBillNum.Items.Add(cmbBillNum.SelectedValue)
End Sub
Private Sub btnClear_Click(sender As Object, e As EventArgs) Handles btnClear.Click
lstBillNum.Items.Clear()
End Sub
End Class
采纳答案by CheapD AKA Ju
it's what you expect ?
这是你期望的吗？
Private Sub ComboBox1_SelectedValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedValueChanged
Dim index As Integer = ComboBox1.SelectedIndex
ListBox1.Items.Add(ComboBox1.Items(index))
ComboBox1.Items.RemoveAt(index)
End Sub
