打印所选索引项

Question

我尝试打印选定的索引项但我无法成功。

你能帮我修理一下代码吗？

我得到＆＃34; -1＆＃34;打印页面上的值。

Private Sub Textbox2_TextChanged(sender As Object, e As EventArgs) Handles TextBox2.TextChanged

    Dim idx As Integer = ListBox1.FindStringExact(TextBox2.Text)
                    If idx <> -1 Then
                        ListBox1.SelectedIndex = idx
                        ListBox2.Items.Add(ListBox1.Text)
                        ListBox1.Items.Remove(TextBox2.Text)
                        PrintDoc.Print()
    End sub

Private Sub PrintDoc_PrintPage(ByVal sender As System.Object, ByVal e As Printing.PrintPageEventArgs) Handles PrintDoc.PrintPage
        Dim drawfont As New Font("arial", 16)
        Dim drawbrush As New SolidBrush(Color.Black)
        e.Graphics.DrawString(ListBox1.SelectedIndex, drawfont, drawbrush, 100, 100)
    End Sub

Answer 1

http://watchmynewvideoxyz.blogspot.in/2017/02/user3900603-your-answer.html

准备好你的代码

如果确定让我+1