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POWPF C# Recording Dependency object data modification
 

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  1. POWPF C# Recording Dependency object data modification
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    <p>Am working with dependency objects here, not done much with them before but they look very useful.</p> <p>Basically I've used these objects to be editable in a ListView. However, I then have to write these changes back to SQL. My question is, is there a way to record whether the data has been modified because I don't want to write back to SQL every time someone views the data. Currently I have this:</p> <pre><code>public class KPI : DependencyObject { public static readonly DependencyProperty DepartmentProperty = DependencyProperty.Register("Department", typeof(string), typeof(KPI), new UIPropertyMetadata(null)); public string Department { get { return (string)GetValue(DepartmentProperty); } set { SetValue(DepartmentProperty, value); } } public static readonly DependencyProperty KPINumberProperty = DependencyProperty.Register("KPINumberProperty", typeof(int), typeof(KPI), new UIPropertyMetadata(null)); public int KPINumber { get { return (int)GetValue(KPINumberProperty); } set { SetValue(KPINumberProperty, value); } } } </code></pre> <p>My idea was to have something like:</p> <pre><code> public static bool DataModified = false; public static readonly DependencyProperty DepartmentProperty = DependencyProperty.Register("Department", typeof(string), typeof(KPI), new UIPropertyMetadata(null)); public string Department { get { return (string)GetValue(DepartmentProperty); } set { SetValue(DepartmentProperty, value); DataModified = true; } } </code></pre> <p>So every time something is edited the DataModified property will be set to TRUE, is this a good way of doing it? Or has somebody got a much better way of doing it?</p> <p>Thanks in advance.</p> <p>SumGuy.</p>
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