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WPF. Check and disable a checkbox if another checkbox is checked

ASJ_SA asked:

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I have 2 checkboxes. when one is checked, the other one must be checked and disabled. The code I have so far is like so

Xaml
<CheckBox x:Name="chkSABranches" Content="Apply to all branches" IsChecked="{Binding IsSABranches,ElementName=pgPageTemplate}" Grid.Row="0" Grid.Column="2"/>



In xaml.cs:
public static DependencyProperty IsSABranchesProperty = DependencyProperty.Register("IsSABranches", typeof(bool), typeof(pgAccounts), new PropertyMetadata(false));
        public static DependencyProperty IsSAWarehousesProperty = DependencyProperty.Register("IsSAWarehouses", typeof(bool), typeof(pgAccounts), new PropertyMetadata(false));

  public Boolean IsSABranches
        {
            get
            {
                return (bool)GetValue(IsSABranchesProperty);
            }
            set
            {
                SetValue(IsSABranchesProperty, value);
                NotifyPropertyChanged("IsSABranches");
                NotifyPropertyChanged("IsSAWarehouses");
            }
        }

 public Boolean IsSAWarehouses
        {
            get
            {
                return (bool)GetValue(IsSAWarehousesProperty) || (bool)GetValue(IsSABranchesProperty);
            }
            set
            {
                SetValue(IsSAWarehousesProperty, value);
                NotifyPropertyChanged("IsSAWarehouses");
            }
        }

This doesn't seem to work.. Could anyone please provide some guidance. thanks
Tags: WPF, checkbox, Binding

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