What to update
In DayPilot Pro 5.0, the Update() method has a new parameter that specifies what should be updated:
public void Update(CallBackUpdateType updateType);
CallBackUpdateType is an enum with the following values:
EventsOnly is the default value. Full value reloads both events and headers (including the upper-left corner, see also forums.daypilot.org/Topic.aspx/561/how_to_update_the_content_of_top_left_corner_cell_on_schedul).
Updateable properties
Properties that can be changed during full update:
- DataSource
- StartDate
- Days
- CellDuration
- CellGroupBy
- CellWidth
Sending custom data to the client
It is possible to send a custom data from the CallBack event handler back to the client. This will allow showing custom messages after the event was handled.

Example 1: Sending a simple string
Server-side code (.aspx.cs):
protected void DayPilotScheduler1_TimeRangeSelected(object sender, TimeRangeSelectedEventArgs e)
{
// ... update database
DayPilotScheduler1.DataBind();
DayPilotScheduler1.Update("New event created.");
}Server-side template (.aspx):
<daypilot:daypilotscheduler id="DayPilotScheduler1" runat="server"
...
AfterRenderJavaScript="afterRender(data);" ></daypilot:daypilotscheduler>Client-side code (.aspx):
function afterRender(data) {
if (data) {
document.getElementById('messageDiv').innerHTML = data;
}
}Example 2: Sending a dictionary
Server-side code (.aspx.cs):
protected void DayPilotScheduler1_TimeRangeSelected(object sender, TimeRangeSelectedEventArgs e)
{
// ... update database
DayPilotCalendar1.DataBind();
Hashtable ht = new Hashtable();
ht["message"] = "Event moved.";
ht["id"] = e.Value;
DayPilotCalendar1.Update(ht);
}Server-side template (.aspx):
<daypilot:daypilotscheduler id="DayPilotScheduler1" runat="server"
...
AfterRenderJavaScript="afterRender(data);" ></daypilot:daypilotscheduler>
Client-side code (.aspx):
function afterRender(data) {
if (data) {
document.getElementById('messageDiv').innerHTML = data.message + " (id " + data.id + ")";
}
}