Navigator loses customisation on time range selected changes

Asked by Pete
6 months ago.

Two things I am having issues with:

1) When I select a new time range on the navigator, it loses the customisation I have setup on the BeforeCellRender.

2) How can you update the navigator through javascript? I have tried using the nav.update(), but it comes up with the error in screenshot 3.

Javascript

let nav = new DayPilot.Navigator("dpnSelection");
console.log(nav);
nav.update();

Nav declaration

<DayPilot:DayPilotNavigator ID="dpnSelection" runat="server" ClientIDMode="Static" 
ShowMonths="3" SelectMode="Week" CellHeight="25" CellWidth="25" 
OnBeforeCellRender="Selection_BeforeCellRender" 
OnTimeRangeSelected="Selection_TimeRangeSelected" TimeRangeSelectedHandling="Postback" />

how-to asp.net

daypilot-screenshot-1.png

daypilot-screenshot-2.png

daypilot-screenshot-3.png

Answer posted by Dan Letecky [DayPilot]
6 months ago.

1. This should work fine. On PostBack, the TimeRangeSelected event is called for every cell and the values are updated on the client side.

You can test it in the Calendar/Navigator.aspx demo page:

If you modify Calendar/Navigator.aspx.cs like this, you will see the custom HTML after TimeRangeSelected event PostBack as well.

protected void DayPilotNavigator1_BeforeCellRender(object sender, DayPilot.Web.Ui.Events.Navigator.BeforeCellRenderEventArgs e)
{
    e.InnerHTML = e.Start.Day + "*";
}

2. The client-side object is already available as dpnSelection (for your ID and ClientIDMode values; you can also set it explicitly using ClientObjectName="dpnSelection"):

dpnSelection.update();

Comment posted by Pete
6 months ago.

1) I was already doing all of that, but I figured out why it wasn’t working and fixed it.

2) Should the Navigator.update() be firing the BeforeCellRender? As when I now do it using dpnSelection.update() it does not fire any errors, but it doesn’t seem to be updating.

Comment posted by Dan Letecky [DayPilot]
6 months ago.

Thanks for the update.

Calling update() on the client-side doesn’t invoke a server-side update. You’d have to invoke a PostBack, e.g. by calling __doPostBack() for a hidden Button element and then call DayPilotNavigator.Update() in the server-side event handler.

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