DataFormDropDownItem crashes , DataFormPickerItem with the same setup works

[Tung]

 Hello,

I follow your instruction at your online help, section Loading complex type property values in the drop-down editor.

DataFormDropDownItem crashes my app. I switched to DataFormPickerItem with the same setup, it works

here is the exception 

at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00081] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.14.0.114/src/Xamarin.iOS/mcs/class/corlib/System.Reflection/RuntimeMethodInfo.cs:401 

  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.14.0.114/src/Xamarin.iOS/external/corefx/src/Common/src/CoreLib/System/Reflection/MethodBase.cs:53 

  at Syncfusion.XForms.iOS.ComboBox.SfComboBoxRenderer.TriggerInternalMethod (System.Type type, System.Object obj, System.String methodName, System.Object[] args) [0x00015] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Syncfusion.XForms.iOS.ComboBox.SfComboBoxRenderer.NativeComboBox_SelectionChanged (System.Object sender, Syncfusion.iOS.ComboBox.SelectionChangedEventArgs e) [0x0042d] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Syncfusion.iOS.ComboBox.SfComboBox.OnSelectionChanged (Syncfusion.iOS.ComboBox.SelectionChangedEventArgs args) [0x00008] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Syncfusion.iOS.ComboBox.SfComboBox.SetSelectedItem (System.Object value) [0x001d2] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Syncfusion.iOS.ComboBox.SfComboBox.set_SelectedItem (System.Object value) [0x00062] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Syncfusion.iOS.ComboBox.SfComboBox.SelectedItemCalculation (Syncfusion.XForms.ComboBox.SfComboBox temp) [0x000d2] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Syncfusion.iOS.ComboBox.SfComboBox.SetNativeSelectedItem () [0x00015] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Syncfusion.iOS.ComboBox.SfComboBox.OnComboBoxPropertiesChanged (System.String propertyName, Syncfusion.XForms.ComboBox.SfComboBox formsComboBox, Syncfusion.iOS.ComboBox.SfComboBox nativeComboBox) [0x0027e] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Syncfusion.XForms.iOS.ComboBox.SfComboBoxRenderer.OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) [0x00163] in <5e1ceba9348646a087db472c4980bf5b>:0 

  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x00122] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:277 

  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:146 

  at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00014] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Platform.cs:188 

  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) [0x0003d] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:97 

  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Load () [0x0001e] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:46 

  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x000de] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:264 

  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:146 

  at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00014] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Platform.cs:188 

  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) [0x0003d] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:97 

  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Load () [0x0001e] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:46 

  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x000de] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:264 

  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:146 

  at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00014] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Platform.cs:188 

  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) [0x0003d] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:97 

  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Load () [0x0001e] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:46 

  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x000de] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:264 

  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:146 

  at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00014] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Platform.cs:188 

at Syncfusion.iOS.DataForm.DataFormLayoutManager.CreateDataFormItemTextInputLayout (System.Int32 rowIndex, System.Int32 columnIndex) [0x000f5] in <52c84fe9325a4f308b11ab9cd3b47aec>:0 

  at Syncfusion.iOS.DataForm.DataFormLayoutManager.CreateItemView (System.Int32 rowIndex, System.Int32 columnIndex) [0x00049] in <52c84fe9325a4f308b11ab9cd3b47aec>:0 

  at Syncfusion.iOS.DataForm.ScrollPanel.GenerateItems (System.Int32 columnCount, System.Int32& actualStartIndex, System.Int32 actualEndIndex) [0x00069] in <52c84fe9325a4f308b11ab9cd3b47aec>:0 

  at Syncfusion.iOS.DataForm.ScrollPanel.OnLayoutViews () [0x00215] in <52c84fe9325a4f308b11ab9cd3b47aec>:0 

  at Syncfusion.iOS.DataForm.ScrollPanel.LayoutSubviews () [0x00000] in <52c84fe9325a4f308b11ab9cd3b47aec>:0 

  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)

at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.14.0.114/src/Xamarin.iOS/UIKit/UIApplication.cs:86 

  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.14.0.114/src/Xamarin.iOS/UIKit/UIApplication.cs:65 

Attachment: FormLayout_bfd388.rar

[Karthikraja Arumugam]

Hi Tung, 

 

Thank you for contacting Syncfusion support. 

 

We have checked the reported issue “Exception with DataFormDropDownItem inside DataForm floating label layout”. You are using DataFormDropDownItem inside FloatingLabel layout but currently, DataForm FloadtingLabel layout doesn’t have support for DataFormDropDownItem we have mentioned the same in our UG document. Kindly refer the same, 

 

UG link: https://help.syncfusion.com/xamarin/sfdataform/floating-label-layout#unsupported-editors 

 

We have already planned to include DropDownItem inside floating label layout and we are currently implementing the same, we will include this new feature in our upcoming Volume 3 release. Which is expected to roll out at the end of September 2019. 

 

As of now you can use DropDownItem inside default layout. DataForm supports to change layout option for each item. Kindly refer our UG documentation for the same, 

 

UG link: https://help.syncfusion.com/xamarin/sfdataform/floating-label-layout#layout-options 

 

We hope this helps. Kindly revert us if you have any concern. 

 

Regards, 

Karthik Raja A

[Ajith Kumar Senthil Kumar]

  

Hi Tung,  

  

We are glad to announce that our Essential Studio 2019 Volume 3 Release version 17.3.0.14 is rolled out with the requested feature “DropDown editor support in dataform inside TextInputLayout” and is available for download under the following link.  

   

https://www.syncfusion.com/forums/148058/essential-studio-2019-volume-3-release-v17-3-0-14-is-available-for-download   

  

Nuget link:  

https://www.nuget.org/packages/Syncfusion.Xamarin.SfDataForm/ 

  

Release notes link:  

https://help.syncfusion.com/xamarin/release-notes/v17.3.0.14?type=all#sfdataform-features 

 

We have prepared a sample with requested feature in Syncfusion release version 17.3.0.14. Please find the sample in the following link  

Sample link: https://www.syncfusion.com/downloads/support/directtrac/247730/ze/DataForm748695472.zip 

  

We thank you for your support and appreciate your patience in waiting for this release. Please get in touch with us if you would require any further assistance.  

  

Regards,      

Ajith 

[Tung]

It works fine now at my end. 

Thank you.

[Ajith Kumar Senthil Kumar]

 Hi Tung, 

 

We are glad to know the issue resolved at your end. Please get in touch with us. 

 

Regards, 

Ajith