Dynamic data source binding on grid

Thread ID:	Created:	Updated:	Platform:	Replies:
151043	Jan 29,2020 04:04 AM UTC	Jan 30,2020 05:18 AM UTC	Blazor	1

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Tags: Grid

Raul

Asked On January 29, 2020 04:04 AM UTC

Hi, is ObservableCollection the only way to dynamically bind a datasource? I mean it seems like a step backwards from the way it used to work.

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Vignesh Natarajan [Syncfusion]

Replied On January 30, 2020 05:18 AM UTC

Hi Raul,

Thanks for contacting Syncfusion support.

Query: “is ObservableCollection the only way to dynamically bind a datasource? I mean it seems like a step backwards from the way it used to work”

From your query, we suspect that you are facing issue while changing the datasource dynamically / externally in Grid. While using ObservableCollection changes done externally like Add, Delete, Update item will be reflected automatically in Grid without any external action.

But if you are binding the datasource in form of IEnumerable collection, after the changing the datasource. You need to call Refresh() method of Grid to reflect the changes done externally. Because tracking items of IEnumerable for changes done externally is avoided for performance considerations.

Refer the below code example.

<EjsButton OnClick="Clik">Save</EjsButton>

<EjsGrid @ref="GridInstance" AllowPaging="true" DataSource="@Orders" Toolbar="@(new List<string>() { "Cancel", "Update" })">

. . . . . . . . .

</EjsGrid>

@code{

public static EjsGrid<Order> GridInstance { get; set; }

public void Clik()

{//call refresh method after changing the datasource externally

GridInstance.Refresh();

}

If above solution does not resolve your query, kindly get back to us with more details about your issue or requirement.

Regards,

Vignesh Natarajan.

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Dynamic data source binding on grid

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