回答編集履歴
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code
test
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@@ -5,3 +5,79 @@
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それはUIスレッドでメッセージボックス表示するようにしてやれば、
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バックグラウンドの処理は停止しないはずです。
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```C#
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public partial class Form1 : Form
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{
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public Form1()
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{
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InitializeComponent();
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}
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private void button1_Click(object sender, EventArgs e)
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{
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backgroundWorker1.RunWorkerAsync();
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}
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private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
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{
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//background process
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System.Threading.Thread.Sleep(3000);
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ShowMessageAsync("A");
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System.Threading.Thread.Sleep(3000);
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ShowMessageAsync("B");
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System.Threading.Thread.Sleep(3000);
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ShowMessageAsync("C");
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}
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private async void ShowMessageAsync(string message)
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{
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await Task.Run(() =>
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{
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Invoke((MethodInvoker)delegate
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{
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//UI Thread
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MessageBox.Show(message);
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});
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});
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}
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}
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```
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