Get a Custom Control when Inserting new Appointment

[Joseph]

Hello eveyrone,

I have created a new DropDownList inside the Insert Form ( normal and advanced mode) inside the FormCreated event.

Now when a user double click and use the normal or advanced insert form to submit his new Appointment I want to access the DropDownList to get the selected value.

This will be handled inside the AppointmentInsert event.

Any ideas?

Thanks

[Joseph]

Any Suggestions guys?

[Joseph]

Any ideas?

[Peter]

Hello Joseph,

This scenario is not possible with a dropdownlist control. However, RadCombobox and its rescuing OnClientSelectedIndexChanged event offer an easy solution. Please, consider the following code:

aspx:

<script type="text/javascript">
       function OnClientSelectedIndexChanged(sender, eventArgs) {
           var selectedValue = document.getElementById("HiddenField1");
           selectedValue.value = eventArgs.get_item().get_value();
       }
   </script>

    <asp:HiddenField ID="HiddenField1" runat="server" />

C#:

 protected void RadScheduler1_FormCreated(object sender, SchedulerFormCreatedEventArgs e)
    {
        if (e.Container.Mode == SchedulerFormMode.AdvancedInsert)
        {
            RadComboBox cb1 = new RadComboBox();
            RadComboBoxItem item1 = new RadComboBoxItem("a", "a");
            RadComboBoxItem item2 = new RadComboBoxItem("b", "b");
            RadComboBoxItem item3 = new RadComboBoxItem("c", "c");
            cb1.Items.Add(item1);
            cb1.Items.Add(item2);
            cb1.Items.Add(item3);
            cb1.OnClientSelectedIndexChanged = "OnClientSelectedIndexChanged";
            Panel advPanel = (Panel)e.Container.FindControl("AdvancedControlsPanel");
            advPanel.Controls.Add(cb1);
        }
    }

    protected void RadScheduler1_AppointmentInsert(object sender, SchedulerCancelEventArgs e)
    {
        e.Appointment.Subject = HiddenField1.Value.ToString();
     }

So, the idea is to handle the OnClientSelectedIndexChanged of RadCombobox and store the selected value in a hidden field on the client. Then you can access this value in any event you wish by simply using HiddenField1.Value.


Best wishes,

Peter
the Telerik team

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[Joseph]

Thanks a lot man.

[Lukrs]

Hi,

This solution sounds great, but I get an error on the following line:

advPanel.Controls.Add(cb1);

Object reference not set to an instance of an object.

I use the advancededit and insert template also.

Any ideas?

Thanks

[Peter]

Hello Luka,

The solution I suggested assumes that you use the default advanced insert form. If you use templates, then you need to consider what IDs you set for the controls in the template. For example, if you have:

<AdvancedInsertTemplate> 
    <asp:Panel ID="Panel1" runat="server"> 
    * * * 
    </asp:Panel>
</AdvancedInsertTemplate>

Then in FormCreated you would use:

Panel advPanel = (Panel)e.Container.FindControl("Panel1");


Kind regards,
Peter
the Telerik team

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[Lukrs]

yes, but when I add this


 <AdvancedInsertTemplate>
          <asp:Panel ID="advPanela" runat="server">         
          <scheduler:AdvancedInsertForm runat="server" ID="AdvancedInsertForm1"
                                   Subject='<%# Bind("Subject") %>'
                                   Start='<%# Bind("Start") %>'
                                   End='<%# Bind("End") %>'
                                   RecurrenceRuleText='<%# Bind("RecurrenceRule") %>'
                                   Description='<%# Bind("Description") %>'
                                   UserID='<%# Bind("User") %>'
                                   RoomID='<%# Bind("Room") %>' />
           </asp:Panel>
       </AdvancedInsertTemplate>


or this


 <AdvancedInsertTemplate>
           
      
         
          
          <scheduler:AdvancedInsertForm runat="server" ID="AdvancedInsertForm1"
                                   Subject='<%# Bind("Subject") %>'
                                   Start='<%# Bind("Start") %>'
                                   End='<%# Bind("End") %>'
                                   RecurrenceRuleText='<%# Bind("RecurrenceRule") %>'
                                   Description='<%# Bind("Description") %>'
                                   UserID='<%# Bind("User") %>'
                                   RoomID='<%# Bind("Room") %>' />

<asp:Panel ID="advPanela" runat="server">         
 </asp:Panel>

       </AdvancedInsertTemplate>

The advancedInsertForm covers the radComboBox.

What can I do?

[Peter]

It depends where you want RadCombobox to appear. You can try the following for example:

<AdvancedInsertTemplate>
<scheduler:AdvancedInsertForm runat="server" ID="AdvancedInsertForm1"
Subject='<%# Bind("Subject") %>'
Start='<%# Bind("Start") %>'
End='<%# Bind("End") %>'
RecurrenceRuleText='<%# Bind("RecurrenceRule") %>'
Description='<%# Bind("Description") %>'
UserID='<%# Bind("User") %>'
RoomID='<%# Bind("Room") %>' />
<asp:Panel ID="advPanela" runat="server">
</asp:Panel>
</AdvancedInsertTemplate>

In this case RadCombobox will appear at the bottom.

Since you are using the user controls for the advanced form, an alternative is to edit the AdvancedInsertForm.ascx and AdvancedEditForm.ascx  and to include RadCombobox directly there. In this case you will not need to handle FormCreated to add RadCombobox dynamically.


Greetings,
Peter
the Telerik team

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