Is it possible to change the tooltip font size?

[Cooper]

Telerik Members:

Is it possible to change the tooltip font size?

[Cooper]

Another question:


How to change the appointment height in month view? 

[Stefan]

Hello Cooper,

Thank you for writing.

Before getting to your questions, I would like to kindly ask you to post the questions that are not related to each other in separate threads, in order to keep the forums more readable and easy to navigate. You can also have a look at the forum rules.

Now to the questions at hand. 

1. The tooltips in RadScheduler are controlled via the ToolTipTextNeeded event, which will get triggered when an element is hovered. There you have the ability to check the hovered element and set its tooltip. The toolips we use are the standard ones, coming from .NET. The way to change the font of them is to handle the tooltip's Draw event. Here is a nice article about this. Here is also a small example. 

protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);
    InitializeComponent();


    AddScheduler();
    radScheduler1.ToolTipTextNeeded += radScheduler1_ToolTipTextNeeded;
}

string schedulerToolTip = "toolTipText";

void radScheduler1_ToolTipTextNeeded(object sender, ToolTipTextNeededEventArgs e)
{
    e.ToolTipText = schedulerToolTip;

    e.ToolTip.OwnerDraw = true;

    e.ToolTip.Popup -= ToolTip_Popup;
    e.ToolTip.Popup += ToolTip_Popup;

    e.ToolTip.Draw -= ToolTip_Draw;
    e.ToolTip.Draw += ToolTip_Draw;
}

void ToolTip_Popup(object sender, PopupEventArgs e)
{
    e.ToolTipSize = TextRenderer.MeasureText(schedulerToolTip, new Font("Arial", 16.0f));
    Console.WriteLine(e.ToolTipSize);
}

void ToolTip_Draw(object sender, DrawToolTipEventArgs e)
{
    using (e.Graphics)
    {
        Font f = new Font("Arial", 16.0f);
        e.DrawBackground();
        e.DrawBorder();
        schedulerToolTip = e.ToolTipText;
        e.Graphics.DrawString(e.ToolTipText, f, Brushes.Red, new Point(2,2));

    }
}

Note that due to the fact the ToolTipText needed is fired upon hovering an element in the control, I am first unsubscribing from the events prior subscribing, in order to avoid multiple subscriptions.

2. Here is how to change the appointment height in month view:

SchedulerMonthViewElement monthView = this.radScheduler1.SchedulerElement.ViewElement as SchedulerMonthViewElement;
if (monthView != null)
{
    monthView.AppointmentHeight = 60;
}

I hope that you find this information useful. Should you have any other questions, do not hesitate to contact us.

Regards,
Stefan
Telerik

 

 

[Cooper]

Very Thanks you help.  I will separate the questions that not related each other in next time.

(1)  How to change the appointment in month view?

But it is not work when I had added the code in the Form_load.

SchedulerMonthViewElement monthView = this.radScheduler1.SchedulerElement.ViewElement as SchedulerMonthViewElement;

if (monthView != null)
{
    monthView.AppointmentHeight = 60;
}

[Stefan]

Hi,

Can you check if you can break in the if statement? If you can't it means that the view is not yet changed, so you need to execute the code once it is.

I hope this helps.

Regards,
Stefan
Telerik

 

 

[Cooper]

Very thank your response.

It is work in single schedule.  But there is one problem in multi scheduler.

I don’t know why the appointment has the different appointment height value in multi schedule.

How to set the appointment height value in multi scheduler? 

[Stefan]

Hi,

Here is how to do that in grouped scheduler as well:

private void radButton1_Click(object sender, EventArgs e)
{
    SchedulerMonthViewGroupedByResourceElement groupedElement = this.radScheduler1.SchedulerElement.ViewElement as SchedulerMonthViewGroupedByResourceElement;
    if (groupedElement != null)
    {
        foreach (RadElement currentElement in groupedElement.Children)
        {
            SchedulerMonthViewElement monthViewElement = currentElement as SchedulerMonthViewElement;
            if (monthViewElement != null)
            {
                monthViewElement.AppointmentHeight = 50;
            }
        }
    }
}

I hope that you find this information useful.

Regards,
Stefan
Telerik