Clear Data field after submitting button

Question

Hello Good Evening I have this problem and I cant solve this.
Anyway, information about my project in xamarin form;

• Im using Vs 2019 version 16.11.13, latest one.
• android only
• .NET framework Version 4.8.04084

So, I have create account page, with fields and a button( register ). What I want is after clicking the register, the all fields will reset or clear the data entered by the user.
What I tried is in just text only like firstname, lastname, address and more, I successfully clear the data after clicking the button.

public void ClearData(){  
                textbox_firstname.Text = string.Empty;  
                textbox_lastname.Text = string.Empty;  
  
}  

but I have an entry fields of ;
-Datepicker; This is how my codes in datepicker..

//my design, the use of this control is to set an placeholder like "birth date"  
 <local:BirthdayDatePickerControl  
                                                        TextColor="Black"  
                                                      x:Name="entryField_DateOfBirth"  />  
  
I want to clear the data after clicking the register button. I didnt try any code on that datepicker because Idk how to do it.  
  

-Radiobutton; This is how my codes in radiobutton

/my design  
<StackLayout RadioButtonGroup.GroupName="IDtype" x:Name="ID_Type" >  
                                <RadioButton Content="National ID"/>  
                                <RadioButton Content="Voters ID"/>  
                                <RadioButton Content="Drivers License"/>  
                                <RadioButton Content="PRC ID"/>  
                                <RadioButton Content="Postal ID"/>  
  
                                <RadioButton Content="Others:"/>  
                              
                            </StackLayout>  
  
  
I trid some trial and error in clearing the data, this is what I did.  
  
  
 ID_Type.Children.Clear();  
  
but the output is error because my radiobutton value was removed .  

and an ImageResult which is basically an image element and my codes..

<Image   
                                    x:Name="Imgresult"   
                                    HeightRequest="150"   
                                    Aspect="AspectFill"/>  

but Idk also how to clear the imageresult.

My problem is how to clear data those fields. Thank you.

Answer 1

Hello,

========Update========
Firstly, if you want to clear the text and save the previous date in the DataPicker,

You need to pop up a new DatePickerDialog in the custom renderer and add a bindable property for nullable property.

You can invoke clear text function in the ClearData method with myBirthdayDatePickerControl.Clear();

Second, if you want to clear the check item for RadioButton, you need to traverse all of RadioButton and set the radioButton.IsChecked = false;

End, if you want to clear the image, you can set source to null with Imgresult.Source = ImageSource.FromFile("");.

Here is code about ClearData method.

   public void ClearData()  
           {  
               textbox_firstname.Text = string.Empty;  
               textbox_lastname.Text = string.Empty;  
               myBirthdayDatePickerControl.Clear();  
               var childs= ID_Type.Children;  
               foreach (var child in childs) {  
                   RadioButton radioButton = child as RadioButton;  
                   radioButton.IsChecked = false;  
               }  
               Imgresult.Source = ImageSource.FromFile("");  
           }  

Best Regards,

Leon Lu

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