DataSource

13 Oct 20173 minutes to read

GroupButton can populate the button items based on data source and by specifying the associated fields.

Refer the below table to know about the available fields

text	Text to be displayed in button
prefix-icon	Icon class name – prefixIcon will be displayed from the left margin of the button.
suffix-icon	Icon class name – suffixIcon will be displayed from the left margin of the button.
content-type	Specifies content type of button item
image-position	Specifies position of the image in a button item
selected	Specifies the selection state of button item
url	Used to include the URL tag to the button item
html-attribute	It defines the HTML attributes such as class and styles for an button item.
link-attribute	It defines the image attributes such as height, width, styles, etc.

Local Data

To set the local JSON data, define a JSON array and initialize the GroupButton with dataSource property. Specify the column names in the fields’ property.

NOTE

the columns are bounded automatically when the fields are specified with the default names like id, text, etc…

Below is the sample to code to render the GroupButton JSON dataSource,

CSHTML

/*ej-Tag Helper code to render GroupButton*/

<ej-group-button id="GroupButton" width="100%" group-button-mode="@GroupButtonMode.RadioButton" show-rounded-corner="true" datasource="ViewBag.datasource">
    <e-group-button-fields id="BtnID" text="Text" content-type="ContentType" selected="Selected" />    
</ej-group-button>

CSHTML

/*Razor code to render GroupButton*/

     @{Html.EJ().GroupButton("GroupButton").Width("100%").GroupButtonMode(GroupButtonMode.RadioButton).ShowRoundedCorner(true).Datasource((IEnumerable<Groupbutton_core.ButtonController.Groupbutton>)ViewBag.Model).GroupButtonFields(e => e.Text("text").Selected("Selected")).Render(); }

NOTE

To render the GroupButton Control you can use either Razor or Tag helper code as given in the above code snippet.

// Add the following code to add list items in the controller page
	public class Btn
        {
            public string Text { get; set; }
            public string ContentType { get; set; }
            public string BtnID { get; set; }
            public string Selected { get; set; }
        }
        List<Btn> file = new List<Btn>();
        public IActionResult Index()
        {
            file.Add(new Btn { BtnID = "btn1", Text = "Day" });
            file.Add(new Btn { BtnID = "btn2", Text = "Week" });
            file.Add(new Btn { BtnID = "btn3", Text = "Work Week" });
            file.Add(new Btn { BtnID = "btn4", Text = "Month", Selected="selected" });
            file.Add(new Btn { BtnID = "btn5", Text = "Agenda" });
            ViewBag.datasource = file;
            return View();
        }

Remote Data

To bind remote data to the GroupButton, you can assign a service data as an instance of ejDataManager to the dataSource property along with the fields mapping.

CSHTML

<ej-group-button id="groupButton" query="ej.Query().from('Orders').take(6)" width="100%">
    <e-datamanager url="//mvc.syncfusion.com/Services/Northwnd.svc/" offline="false"></e-datamanager>
    <e-group-button-fields text="CustomerID" />
</ej-group-button>