我有一个应用程序与数据库一起运行。当我在datagridview中加载表格时,表单冻结。如何在加载表格时确保平滑加载动画?显示加载动画在其他线程加载数据
我为动画运行两个线程并将数据加载到表中,但动画仍然无法正常工作。
private volatile bool threadRun;
private void UpdateTab()
{
// Create panel for animation
Panel loadingPanel = new Panel();
// Label, where the text will change
Label loadingLabel = new Label();
loadingLabel.Text = "Loading";
loadingPanel.Controls.Add(loadingLabel);
this.Controls.Add(loadingPanel);
// thread loading animation
threadRun = true;
Task.Factory.StartNew(() =>
{
int i = 0;
string labelText;
while (threadRun)
{
Thread.Sleep(500);
switch (i)
{
case 0:
labelText = "Loading.";
i = 1;
break;
case 1:
labelText = "Loading..";
i = 2;
break;
default:
labelText = "Loading...";
i = 0;
break;
}
loadingLabel.BeginInvoke(new Action(() => loadingLabel.Text = labelText));
}
});
// thread update DataGridView
Thread update = new Thread(ThreadUpdateTab);
update.Start();
}
private void ThreadUpdateTab()
{
// SQL Query...
myDataGridView1.Invoke(new Action(() => myDataGridView1.DataSource = myDataSet1.Tables[0]));
// ...
myDataGridView10.Invoke(new Action(() => myDataGridView10.DataSource = myDataSet10.Tables[0]));
threadRun = false;
}
为什么线程和任务的组合?选择一个,而不是两个。选择TPL,恕我直言。 – Maarten
看看[在Windows窗体中将数据异步加载到我的DataTable中](http://stackoverflow.com/a/38427392/3110834)。 –
此外,如果您可能有兴趣[显示透明加载微调高于其他控件](http://stackoverflow.com/a/37473192/3110834) –