The Syncfusion native Blazor components library offers 70+ UI and Data Viz web controls that are responsive and lightweight for building modern web apps.
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This is in version 2.0.5.1
if (parentForm != null)
{
parentForm.Closed += new EventHandler(parentForm_Closed);
parentForm = null;
}
Probably should be:
parentForm.Closed -= new EventHandler (parentForm_Closed);