SfCheckbox data binding in C#

[david schneider]

All the examples I've seen so far are xaml based data binding.  I have a dynamically built list of checkboxs and wondering how to initialize data binding in C#

I can't figure out how to translate the xaml example into C#.    Thanks!

                    var binding = new Binding();

                    binding.Mode = BindingMode.TwoWay;

                    binding.Source = filter.Value.Active;

                    var checkbox = new SfCheckbox()

                    {

                        Text = filter.Value.Title,

                        IsChecked = binding

                    };

[Geetha Rajendran]

Hi David,

 

Query: how to initialize data binding in C#

We have prepared a simple sample to bind the properties of SfCheckBox in code behind. Please refer the below code.

 

Code snippet [C#]:

var binding = new Binding()

{

    Source = viewModel,

    Path = "IsActive",

    Mode = BindingMode.TwoWay

};

 

SfCheckBox sfCheckBox = new SfCheckBox();

sfCheckBox.SetBinding(SfCheckBox.IsCheckedProperty, binding);

 

Sample -  https://www.syncfusion.com/downloads/support/forum/150675/ze/150675-sample-365345168.zip

 

Please get back to us if you need further assistance on this.

 

Regards,

Geetha R.

[david schneider]

Thanks.  How about if the data is buried in a collection.   Here is a snippet using your example in my code.  The commented out lines is the old-school way of fielding the state change events to update the backing store.  Maybe you can't bind on a local variable that points to the backing store.

                foreach (var filter in filters.GetAllFilters(category.Value.Key))

                {

                    var binding = new Binding()

                    {

                        Source = "filter",

                        Path = "Value.FilterActive",

                        Mode = BindingMode.TwoWay

                    };

                    var checkbox = new SfCheckBox()

                    {

                        Text = filter.Value.Title,

                        //IsChecked = filter.Value.FilterActive,

                        CheckedColor = Color.Black,

                        FontSize = 20,

                    };

                    checkbox.SetBinding(SfCheckBox.IsCheckedProperty, binding);

                    //checkbox.StateChanged += Checkbox_StateChanged;

                    radiogroup.Children.Add(checkbox);

                }

[Hemalatha Marikumar]

Hi David, 

 

Thanks for your update. 

 

We have validated the provided code snippet and prepared sample as per your requirement which is worked fine even binding with path and source from other collection and backing store also worked as per in below code snippet 

 

Code Snippet [C#]: 

  foreach(Model model in viewModel.Data) 

            { 

               var binding = new Binding() 

                { 

                    Source = model, 

                    Path = "IsChecked", 

                    Mode = BindingMode.TwoWay 

                }; 

 

                Binding textbinding = new Binding() 

                { 

                    Source = model, 

                    Path = "Name", 

                    Mode = BindingMode.TwoWay 

                }; 

 

                SfCheckBox sfCheckBox = new SfCheckBox(); 

                sfCheckBox.SetBinding(SfCheckBox.TextProperty, textbinding); 

                sfCheckBox.SetBinding(SfCheckBox.IsCheckedProperty, binding); 

                layout.Children.Add(sfCheckBox); 

            } 

 

 

Note: In your code snippet, you have mentioned the source value as string. 

 

Please check the below modified sample and let us know if you have any other concern. 

 

Sample Link: https://www.syncfusion.com/downloads/support/forum/150675/ze/150675-modifiedsample-286271156

 

 

If that is not meet your requirement update us with modified sample to check further. 

 

Regards, 

Hemalatha M. 

 

 

 

[david schneider]

Thanks!   It works perfectly. Your technical support is awesome!  

[Hemalatha Marikumar]

Hi David, 

 

Thanks for your update. 

 

We are glad to hear that given solution works.  

 

Please let us know if you need any further assistance. 

 

Regards, 

Hemalatha M.