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WinForms - Add some extra Dispose checks to InvokeOnUiThreadIfRequired

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Also added stackoverflow link regarding calling after the control has been disposed
This commit is contained in:
amaitland 2019-12-14 11:56:47 +10:00
parent 0d386bf7b5
commit fcbdda0964
1 changed files with 27 additions and 19 deletions
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46
CefSharp.MinimalExample.WinForms/Controls/ControlExtensions.cs
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@ -7,23 +7,31 @@ using System.Windows.Forms;
namespace CefSharp.MinimalExample.WinForms.Controls namespace CefSharp.MinimalExample.WinForms.Controls
{ {
public static class ControlExtensions public static class ControlExtensions
{ {
/// <summary> /// <summary>
/// Executes the Action asynchronously on the UI thread, does not block execution on the calling thread. /// Executes the Action asynchronously on the UI thread, does not block execution on the calling thread.
/// </summary> /// </summary>
/// <param name="control">the control for which the update is required</param> /// <param name="control">the control for which the update is required</param>
/// <param name="action">action to be performed on the control</param> /// <param name="action">action to be performed on the control</param>
public static void InvokeOnUiThreadIfRequired(this Control control, Action action) public static void InvokeOnUiThreadIfRequired(this Control control, Action action)
{ {
if (control.InvokeRequired) //If you are planning on using a similar function in your own code then please be sure to
{ //have a quick read over https://stackoverflow.com/questions/1874728/avoid-calling-invoke-when-the-control-is-disposed
control.BeginInvoke(action); //No action
} if (control.Disposing || control.IsDisposed || !control.IsHandleCreated)
else {
{ return;
action.Invoke(); }
}
} if (control.InvokeRequired)
} {
control.BeginInvoke(action);
}
else
{
action.Invoke();
}
}
}
} }