Questions on UI for ASP.NET AJAX Forum

2 answers

121 views

Drag and Drop from rad grid with non-ienumerable data

Hi,

Let me first start by saying I like your controls and products. I am implementing a RadGrid and Scheduler with the idea of dragging and dropping rows from the grid and placing them on the scheduler. I am using the following demo as a guideline:
http://demos.telerik.com/aspnet-ajax/scheduler/examples/draganddropintegration/defaultcs.aspx?product=scheduler

The issue I am having is that in your example you are filling the rad grid with task data whose data table has an ID column with an int data type. When you drop the row over the grid it appears to use that integer ID field as the appointment id and places a new appointment in the index.

Like this:

protected void RadGrid1_RowDrop(object sender, GridDragDropEventArgs e)

{

GridDataItem dataItem = e.DraggedItems[0];

Hashtable values = new Hashtable();

dataItem.ExtractValues(values);

(int)dataItem.GetDataKeyValue("ID");

string firstName = (string)values["FirstName"];

string lastName = (string)values["LastName"];

string targetSlotIndex = TargetSlotHiddenField.Value;

if (targetSlotIndex != string.Empty)

{

HandleSchedulerDrop(id, firstName, targetSlotIndex);

TargetSlotHiddenField.Value = string.Empty;

}

RadScheduler1.Rebind();

rgGridViewUsers.Rebind();

RadAjaxManager1.AjaxSettings.AddAjaxSetting(RadGrid1, RadScheduler1);

}

private void HandleSchedulerDrop(int id, string subject, string targetSlotIndex)

{

RadScheduler1.Rebind();

ISchedulerTimeSlot slot = RadScheduler1.GetTimeSlotFromIndex(targetSlotIndex);

TimeSpan duration = TimeSpan.FromHours(1);

if (slot.Duration == TimeSpan.FromDays(1))

{

duration = slot.Duration;

}

ScheduleAppointment(id, subject, slot.Start, slot.Start.Add(duration));

}

private void ScheduleAppointment(int id, string subject, DateTime start, DateTime end)

{

IDataSource dataSource = SchedulerDataSource;

DataSourceView view = dataSource.GetView("DefaultView");

IOrderedDictionary data = new OrderedDictionary();

data.Add("Subject", subject);

data.Add("Start", start);

data.Add("End", end);

IDictionary keys = new OrderedDictionary();

keys.Add("ID", id);

//keys.Add("ID", 234);

view.Update(keys, data, new OrderedDictionary(), OnDataSourceOperationComplete);

}

private static bool OnDataSourceOperationComplete(int count, Exception e)

{

if (e != null)

{

throw e;

}

return true;

}

However I am trying to add a list of users to the list where the ID column is unique identifier (Guid). After I dropping the even on the scheduler everything seems to work fine up until I get to the the callback OnDataSourceOperationComplete(), where i get an error stating that the key must be of the ienumerbale type.

Here is my code again with the int datatype changed to Guid:

protected void RadGrid1_RowDrop(object sender, GridDragDropEventArgs e)

{

GridDataItem dataItem = e.DraggedItems[0];

Hashtable values = new Hashtable();

dataItem.ExtractValues(values);

Guid id = new Guid((string)values["ID"]);//(int)dataItem.GetDataKeyValue("ID");

string firstName = (string)values["FirstName"];

string lastName = (string)values["LastName"];

string targetSlotIndex = TargetSlotHiddenField.Value;

if (targetSlotIndex != string.Empty)

{

HandleSchedulerDrop(id, firstName, targetSlotIndex);

TargetSlotHiddenField.Value = string.Empty;

}

RadScheduler1.Rebind();

rgGridViewUsers.Rebind();

RadAjaxManager1.AjaxSettings.AddAjaxSetting(RadGrid1, RadScheduler1);

}

private void HandleSchedulerDrop(Guid id, string subject, string targetSlotIndex)

{

RadScheduler1.Rebind();

ISchedulerTimeSlot slot = RadScheduler1.GetTimeSlotFromIndex(targetSlotIndex);

TimeSpan duration = TimeSpan.FromHours(1);

if (slot.Duration == TimeSpan.FromDays(1))

{

duration = slot.Duration;

}

ScheduleAppointment(id, subject, slot.Start, slot.Start.Add(duration));

}

private void ScheduleAppointment(Guid id, string subject, DateTime start, DateTime end)

{

IDataSource dataSource = SchedulerDataSource;

DataSourceView view = dataSource.GetView("DefaultView");

IOrderedDictionary data = new OrderedDictionary();

data.Add("Subject", subject);

data.Add("Start", start);

data.Add("End", end);

IDictionary keys = new OrderedDictionary();

keys.Add("ID", id);

//keys.Add("ID", 234);

view.Update(keys, data, new OrderedDictionary(), OnDataSourceOperationComplete);

}

private static bool OnDataSourceOperationComplete(int count, Exception e)

{

if (e != null)

{

throw e;

}

return true;

}

Unfortunately I am not sure how to overcome this.

Can you provide an example perhaps of how to drag and drop items that have a non integer ID column data type? Or if this is even possible?

Thanks,
-Justin

Scheduler

answered on 09 Jun 2014

1 answer

120 views

Scheduler Colors

We allow our users to choose their colors schemes. I have not found the color property exposed for the header in the RadScheduler. We read the scheme in code behind and adjust accordingly. Can i change this fore color of the header in code-behind?

Thanks!

Scheduler

answered on 09 Jun 2014

1 answer

120 views

loading panel shown on export

Hi, is it possible to have loading panel shown on export?

Grid

answered on 09 Jun 2014

6 answers

258 views

Keep values in edit items after handling exception

Hi,

I have a RadGrid that allows automatic insert and update attached to an ObjectDataSource (ODS). During the ODS insert method I run validation checks and throw custom exceptions. I catch this in my RadGrid ItemInserted event and set the KeepInInsertMode to true and set the ExceptionHandled to true. When the page finishes loading the Insert Row is still there but the values in the edit fields (textboxes, dropdowns, etc) are no longer populated.

Is there a way to keep the values that the user entered before they saved? I need this for Update operations too.

    
            public void RadGrid_Saved(object sender, GridInsertedEventArgs e)  
        
                    {  
        
                        if (e.Exception != null)  
        
                        {  
        
                            e.KeepInInsertMode = true;  
        
                            if (e.Exception.InnerException is ORMEntityValidationException)  
        
                                e.ExceptionHandled = true;  
        
                        }  
        
                    }

That is how I catch my custom exception to keep the insert mode open.

Thanks!

Grid

answered on 09 Jun 2014

3 answers

141 views

[Solved] RadTreeList edit with RadGrid causes some problems

Hi.

I'm new using telerik components, and I'm trying to develop something a little bit complicated.

First of all, I have a RadTreeList, that can be editable. I've set the EditMode as "EditForms", and configured the Edit Settings to use a WebUserControl.
My WebUserControl, has 3 fields and a RadGrid, that can be editable too, but this RadGrid is simple, it's the default edit form and I'm just using the Events, InsertCommand, EditCommand and DeleteCommand, to perform this actions in a List who is in

The first problem here, is that the Cancel command of the RadTreeList is not working, it just works if I comment the RadGrid.
The second problem, is that when I press the Save button in the RadGrid EditForm, it validates all the field from RadTreeList too (attached figure: "Sample.png").

If anyone can help me I'll be very grateful.

Thanks in advance.

TreeList

answered on 09 Jun 2014

5 answers

117 views

[Solved] Various Issues

Hi,

I'm having another try to do some basic charts. These are the issues that I am having:
1) Changing the colour of the chart from the code behind. How can that be done - I've tried in all kinds of places Page Init, Page Load, Pre Render etc. Nothing seems to work.
2) Similar to above I have some code working to generate some PlotBands. All works fine and they are assigned to the chart but they never appear on the chart,
3) In the XAxis I would like to only show the label every x elements so I have the following code:

<XAxis DataLabelsField="ReceivedDate" Step="7">

With the above I see the labels but it doesn't step over 7 labels at a time.

4) I'd like the right most legend panel to be aligned at the top of the right section. Obviously using top centres it above the chart. I just want it aligned to the right but at the top. I presume that things like that are CSS hacks for now?

Any pointers gratefully received.

Regards

Jon

Chart (HTML5)

answered on 09 Jun 2014

1 answer

367 views

Hide edit button

Hi
how to hide edit button in other rows when one row becomes in edit mode.

Grid

answered on 09 Jun 2014

2 answers

170 views

AutoGenericColumns True, Filter control wrapping

The Filter row is word wrapping. Since I am using AutoGenerateColumns, why doesn't it handle this automatically? I tried setting the Filter and EditForms Filter styles wrap to False, but it didn't help.

I have attached a screen shot.

Here is my code:

<telerik:RadGrid ID="dgData" runat="server" AllowFilteringByColumn="true" AllowSorting="True" AutoGenerateColumns="True" Skin="Web20" PageSize="500" GridLines="None" Width="945px" AllowPaging="True" TabIndex="-1" EnableEmbeddedSkins="true" OnBiffExporting="RadGrid_BiffExporting" Visible="false" HeaderStyle-Wrap="false">

<PagerStyle Position="Bottom" Mode="NumericPages" PageButtonCount="10" AlwaysVisible="true" />

<ClientSettings>

<Scrolling AllowScroll="True" ScrollHeight="350px" UseStaticHeaders="true"></Scrolling>

<Resizing ResizeGridOnColumnResize="True" ClipCellContentOnResize="False" />

</ClientSettings>

<MasterTableView AllowMultiColumnSorting="True" EnableNoRecordsTemplate="False" GridLines="Vertical" DataKeyNames="ID">

</MasterTableView>

</telerik:RadGrid>

Grid

answered on 09 Jun 2014

1 answer

123 views

[Solved] Add dynamically Itemtemplate on radCombobox which is inside RadGrid in User Control

Hello Can you help me with this question which I have described here

http://stackoverflow.com/questions/24039319/adding-dynamically-itemtemplate-in-radcombobox-inside-radgrid

ComboBox

answered on 09 Jun 2014

1 answer

468 views

RadHtmlChart TooltipsAppearance DataFormatString with Unix time

Hi,

Apparently I can't format my series tooltips to human readable date using DataFormatString.
I tried {0:d} and many other date formatting but the tooltips always show up as 1399852800000 for example.

My RadHtmlChart/ScatterLine contain multiple ScatterLineSeries added programmatically. Every item X value are DateTime converted to Unix time.
My X-Axis has his Type set to date and apparently format correctly with "yyyy-MM-dd".

Any help?

Thank you.

Chart (Obsolete)

answered on 09 Jun 2014