We are excited to introduce the busy indicator drawing helper for Windows Forms. This busy indicator drawing helper has been implemented in our 2018 Volume 2 release. Usually, an animated GIF image cannot be shown in a Windows Forms control without using the picture box control or writing our own custom control. The busy indicator drawing helper helps you show animated GIF images in a control. The main advantage of this helper is that you can use it in any Windows Forms control, regardless of whether it is a Syncfusion control.
This blog explores how you can show animated GIF images using the busy indicator drawing helper in Windows Forms controls.
public partial class Form1 : Form
{
BusyIndicator busyIndicator = new BusyIndicator();
ObservableCollection<int> sampleData = new ObservableCollection<int>();
public Form1()
{
InitializeComponent();
}
private void sfButton1_Click(object sender, EventArgs e)
{
this.sfButton1.Text = string.Empty;
busyIndicator.Show(this.sfButton1);
for (int i = 0; i <= 10000000; i++)
{
sampleData.Add(i);
}
busyIndicator.Hide();
this.sfButton1.Text = "Get items";
sampleData.Clear();
}
}
public partial class Form1 : Form
{
BusyIndicator busyIndicator = new BusyIndicator();
ObservableCollection<int> sampleData = new ObservableCollection<int>();
public Form1()
{
InitializeComponent();
}
private void sfButton1_Click(object sender, EventArgs e)
{
this.sfButton1.Text = "Loading";
busyIndicator.Show(this.sfButton1, new Point((this.sfButton1.Width / 2) + this.busyIndicator.Image.Width, (this.sfButton1.Height / 2) - this.busyIndicator.Image.Height / 2));
for (int i = 0; i <= 10000000; i++)
{
sampleData.Add(i);
}
busyIndicator.Hide();
this.sfButton1.Text = "Get items";
sampleData.Clear();
}
}
BackgroundWorker backgroundWorker = new BackgroundWorker();
BusyIndicator busyIndicator = new BusyIndicator();
ObservableCollection<int> sampleData = new ObservableCollection<int>();
public Form1()
{
InitializeComponent();
backgroundWorker.WorkerSupportsCancellation = true;
backgroundWorker.DoWork += DoWork;
backgroundWorker.RunWorkerCompleted += RunWorkerCompleted;
}
private void DoWork(object sender, DoWorkEventArgs e)
{
this.sfButton1.Invoke(new Action(() => this.sfButton1.Text = string.Empty));
busyIndicator.Show(this.sfButton1);
for (int i = 0; i <= 10000000; i++)
{
sampleData.Add(i);
}
}
private void RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
this.sfButton1.Text = "Get items";
if (!backgroundWorker.IsBusy)
backgroundWorker.CancelAsync();
busyIndicator.Hide();
sampleData.Clear();
}
private void sfButton1_Click(object sender, EventArgs e)
{
backgroundWorker.RunWorkerAsync();
}
In this blog, we hope you enjoyed learning how to show the busy indicator in a Windows Forms control. You can also refer to this documentation to learn about additional options provided in the busy indicator. If you’re already a Syncfusion user, you can download the Windows Forms setup on Direct-Trac. If you’re not yet a Syncfusion user, you can download a free, 30-day trial on our website. Give us your feedback in the comments section below, our online forum, or a support ticket.
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