在VB.NET中显示加载屏幕通常是通过创建一个窗口来实现的,该窗口在应用程序启动时显示,并在应用程序加载完成后关闭。以下是一个简单的示例,展示了如何在VB.NET中创建一个加载屏幕:
Public Class LoadingScreen
Private Sub LoadingScreen_Load(sender As Object, e As EventArgs) Handles MyBase.Load
' 设置进度条的最大值
ProgressBar1.Maximum = 100
' 启动计时器
Timer1.Start()
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
' 模拟加载过程
If ProgressBar1.Value < 100 Then
ProgressBar1.Value += 10
Label1.Text = "Loading... " & ProgressBar1.Value.ToString() & "%"
Else
' 加载完成,关闭加载屏幕
Timer1.Stop()
Me.Close()
End If
End Sub
End Class
Public Class MainForm
Private Sub MainForm_Load(sender As Object, e As EventArgs) Handles MyBase.Load
' 显示加载屏幕
Dim loadingScreen As New LoadingScreen()
loadingScreen.ShowDialog()
End Sub
End Class
这样,在应用程序启动时,就会显示一个加载屏幕,并在加载过程中更新进度条和加载信息。加载完成后,加载屏幕会自动关闭,显示主窗体。
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