Xamarin Forms DataGrid: A Step-by-Step Guide to Showing Selected Data Row in Textboxes

Are you tired of struggling to display selected data from your Xamarin Forms DataGrid in textboxes? Look no further! In this comprehensive guide, we’ll take you by the hand and walk you through the process of binding your DataGrid to a collection of data, selecting a row, and displaying the selected data in textboxes. Buckle up, folks!

Prerequisites

Before we dive in, make sure you have the following installed on your system:

• Xamarin.Forms NuGet package (version 4.8 or higher)
• .NET Core SDK (version 3.1 or higher)
• Visual Studio 2019 (or higher) with Xamarin development workload
• A Xamarin.Forms project set up and ready to go

Step 1: Create a Data Model and Populate the DataGrid

First things first, we need a data model to bind to our DataGrid. Create a new class called DataModel.cs with the following properties:

public class DataModel
{
    public int Id { get; set; }
    public string Name { get; set; }
    public string Description { get; set; }
}

Next, create a collection of DataModel objects and populate it with some data:

public ObservableCollection<DataModel> DataCollection { get; set; } = new ObservableCollection<DataModel>()
{
    new DataModel() { Id = 1, Name = "Item 1", Description = "This is item 1" },
    new DataModel() { Id = 2, Name = "Item 2", Description = "This is item 2" },
    new DataModel() { Id = 3, Name = "Item 3", Description = "This is item 3" },
    // Add more items to the collection as needed
};

Now, let’s add a DataGrid to our Xamarin.Forms page and bind it to the DataCollection:

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:datagrid="clr-namespace:DevExpress.XamarinForms.DataGrid;assembly=DevExpress.XamarinForms.DataGrid"
             x:Class="MyApp.MyPage">

    <ContentPage.Content>
        <datagrid:DataGrid ItemsSource="{Binding DataCollection}">
            <datagrid:DataGrid.Columns>
                <datagrid:DataGridColumn HeaderText="Id" FieldName="Id" />
                <datagrid:DataGridColumn HeaderText="Name" FieldName="Name" />
                <datagrid:DataGridColumn HeaderText="Description" FieldName="Description" />
            </datagrid:DataGridColumn>
        </datagrid:DataGrid>
    </ContentPage.Content>
</ContentPage>

Step 2: Handle the DataGrid’s SelectionChanged Event

Now that we have our DataGrid up and running, we need to handle the SelectionChanged event to get the selected row:

<datagrid:DataGrid SelectionChanged="DataGrid_SelectionChanged">
    <!-- DataGrid Columns and Data Binding omitted for brevity -->
</datagrid:DataGrid>

In the code-behind, create the event handler for the SelectionChanged event:

private void DataGrid_SelectionChanged(object sender, DevExpress.XamarinForms.DataGrid.SelectionChangedEventArgs e)
{
    if (e.SelectedItem != null)
    {
        DataModel selectedDataModel = (DataModel)e.SelectedItem;
        // We'll use this selectedDataModel later to display the data in textboxes
    }
}

Step 3: Create Textboxes to Display the Selected Data

Add three textboxes to your page to display the selected data:

<StackLayout>
    <Label Text="Id:"/>
    <Entry x:Name="idEntry" />

    <Label Text="Name:"/>
    <Entry x:Name="nameEntry" />

    <Label Text="Description:"/>
    <Entry x:Name="descriptionEntry" />
</StackLayout>

Step 4: Bind the Selected Data to the Textboxes

Now that we have our textboxes, let’s bind the selected data to them using the selectedDataModel object:

private void DataGrid_SelectionChanged(object sender, DevExpress.XamarinForms.DataGrid.SelectionChangedEventArgs e)
{
    if (e.SelectedItem != null)
    {
        DataModel selectedDataModel = (DataModel)e.SelectedItem;
        idEntry.Text = selectedDataModel.Id.ToString();
        nameEntry.Text = selectedDataModel.Name;
        descriptionEntry.Text = selectedDataModel.Description;
    }
}

That’s it! Run your app, select a row in the DataGrid, and watch as the selected data is displayed in the textboxes.

Troubleshooting Tips

If you’re having trouble getting this to work, here are some common issues to check:

• Make sure you’ve set the ItemsSource property of the DataGrid correctly.
• Verify that the SelectionChanged event is being triggered when you select a row in the DataGrid.
• Check that the selectedDataModel object is not null before trying to access its properties.
• Ensure that the textboxes are properly bound to the selected data using the Text property.

Conclusion

In this article, we’ve covered the steps to display selected data from a Xamarin Forms DataGrid in textboxes. By following these instructions, you should now be able to bind your DataGrid to a collection of data, handle the SelectionChanged event, and display the selected data in textboxes. Happy coding!

Keyword	Description
Xamarin Forms	A cross-platform framework for building mobile applications.
DataGrid	A control in Xamarin Forms for displaying data in a tabular format.
SelectionChanged	An event in Xamarin Forms DataGrid that is triggered when a row is selected.
Binding	The process of linking a UI element to a data source.

By following the instructions in this article, you should now be able to show selected data from a Xamarin Forms DataGrid in textboxes. If you have any further questions or need additional assistance, feel free to ask in the comments below!

Frequently Asked Question

Xamarin Forms DataGrid is a powerful tool for displaying and manipulating data, but sometimes it can be tricky to get it to do exactly what you want. Here are some frequently asked questions and answers about showing selected data row in textboxes: