SfDataGrid and ComboBox - Combobox will not open (complex datatype)

[Andy]

Hi,

we want to select a value from ComboBox in a SFDataGrid. I tried it with GridComboboxColumn and GridTemplateColumn + Combobox but both are not selectable with my complex datatype KeyValue. It wont open if I tap on it. If I change the ObservableCollection<KeyValue> to ObservableCollection<string> the GridComboboxColumn is selectable but the GridTemplateColumn + Combobox  isn't. How can I get it to work? We prefere the nested combobox instead of GridComboboxColumn because I can't tap out without selecting.

  <sfgrid:SfDataGrid x:Name="dgAuftraege"

                        ItemsSource="{Binding Auftraege}"

                        AutoGenerateColumns="False"

                        ColumnSizer="Star"

                        AllowEditing="True"

                        SelectionMode="Single"

                        EditTapAction="OnTap"

                        NavigationMode="Cell">

            <sfgrid:SfDataGrid.Columns>

                <sfgrid:GridTextColumn HeaderText="Struktur" CellTextSize="15" MappingName="StrukturId" AllowEditing="False"/>

                <sfgrid:GridTextColumn HeaderText="Auftrag" CellTextSize="15" MappingName="BelId" AllowEditing="False"/>

                <sfgrid:GridTextColumn HeaderText="Bezeichnung" CellTextSize="15" MappingName="Matchcode" Width="350" AllowEditing="False"/>

                <sfgrid:GridTextColumn HeaderText="Sollmenge" CellTextSize="15" MappingName="Sollmenge" AllowEditing="False"/>

                <sfgrid:GridTextColumn HeaderText="Sollstarttermin" CellTextSize="15" MappingName="Sollendtermin" Format="dd.MM.yyyy" AllowEditing="False"/>

                <sfgrid:GridTextColumn HeaderText="Sollendtermin" CellTextSize="15" MappingName="Sollendtermin" Format="dd.MM.yyyy" AllowEditing="False"/>

                <sfgrid:GridTextColumn HeaderText="Projekt" CellTextSize="15" MappingName="Projekt" AllowEditing="False"/>

                <sfgrid:GridComboBoxColumn MappingName="Value" BindingContext="{x:Reference viewModel}" ItemsSource="{Binding MitarbeiterList}" AllowEditing="True" />

                <sfgrid:GridTemplateColumn MappingName="CustomerID" AllowEditing="True">

                    <sfgrid:GridTemplateColumn.CellTemplate>

                        <DataTemplate>

                            <combobox:SfComboBox HeightRequest="40" x:Name="comboBox" DataSource="{Binding MitarbeiterList}"/>

                        </DataTemplate>

                    </sfgrid:GridTemplateColumn.CellTemplate>

                </sfgrid:GridTemplateColumn>

            </sfgrid:SfDataGrid.Columns>

        </sfgrid:SfDataGrid>

        public ObservableCollection<KeyValue> MitarbeiterList { get; set; }

        public AuftraegeZuweisenViewModel()

        {

            Auftraege = new ObservableRangeCollection<FaBeleg>();

            MitarbeiterList = new ObservableCollection<KeyValue>();

            foreach (var item in Settings.Current.MitarbeiterListe)

            {

                MitarbeiterList.Add(item.Value);

            }

        }

    public class KeyValue

    {

        public string Key { get; set; }

        public string Value { get; set; }

        public KeyValue()

        {

        }

        public KeyValue(string key, string value)

        {

            Key = key;

            Value = value;

        }

    }

Thanks for your help!

Maria

[Andy]

Hi,

do you need further information in this case? 

Regards,

Maria

[Anandraj Selvam]

Hi Maria, 

  

Greetings from the Syncfusion. 

  

Currently we are validating the reported query and we will update the complete details on or before 12^th March 2020. 

  

We appreciate your patience until then. 

  

Regards, 

Anand Raj S. 

[Anandraj Selvam]

Hi Maria,   

  

Thanks for your patience,   

  

We would like to let you know that we have prepared a sample with the code snippet provided to check the reported issue, but we are not able to reproduce the issue at our end. Please find the sample from the below location.   

  

Sample Link: https://www.syncfusion.com/downloads/support/directtrac/general/ze/Datagrid_ComboBox-1466915482 

   

Since we are not aware of your exact application scenario, could you please share the following details to check it further and provide a possible solution at earlier.   

    

·           Modifying the above-provided sample to replicate the issue   

    

·           If possible, can you please share the issue reproducing sample along with replication procedure.   

    

Regards,   

Anand Raj S.  

[Andy]

Hi all,

I've implented your example in my code and it works! Seems I have to set the DisplayMemberPath.

Thank you for your quick support!

Maria

[Divya Venkatesan]

Hi Maria, 

  

Thanks for the update. We are glad to know that the given solution works.  

  

Please get back to us if you need any further assistance. 

  

Regards, 

Divya Venkatesan 

[Andy]

Hi, 

I have an other question :) 

We want to enable multiple select on the combobox now. But it isn't enough space to show the selected items with tokens or delimeters. Is it possible to show the items like a list of checkbox items with multiple selection? 

Thanks,

Maria

[Anandraj Selvam]

Hi Maria, 

  

Thanks for the update. 

  

Query 1: “But it isn't enough space to show the selected items with tokens or delimiters” 

  

We have checked the reported query and we suggest you to wrap the Selected Items to the next line using the TokensWrapMode to Wrap. Please go through the below link for more details. 

  

https://help.syncfusion.com/xamarin/combobox/multiple-selection?cs-save-lang=1&cs-lang=xaml#wrap-mode-of-token 

  

Query 2: Is it possible to show the items like a list of checkbox items with multiple selection? 

  

Currently, we don't have support for multiple selection in SfCombobox. We have already logged a feature request on this, and you can track the status of this feature implement through below link: 

  

Feedback Link:  https://www.syncfusion.com/feedback/7499/checkboxes-in-combobox 

  

This feature implementation will be available in any of our upcoming releases. 

  

We appreciate your patience until then.  

  

Regards, 

Anand Raj S.