I was wondering if the following features are possible with the Telerik line chart, and if so how to use it.

We use line charts to show a variable amount of data across a variable time domain. For instance, 3 years worth of patient temperature data. In some periods, 1 measurement per month can have been recorded. In another period, a measurement would have been done every 2 hours. The user looking at the graph might be interested in the 3-year trend, or the data of the last 48 hours. Exactly how much data each patient has and the timespan in which it occurs differs for each patient. The user is presented with the entire data set, and will do plenty of zooming and scrolling.

One problem we run into is how to present the x-axis labels. We need:
1. Dynamic x-axis text labels. When looking at a timespan of 3 years we do not want the time included in the text label. When looking at a timespan of hours, we do not want to repeat the date in each x-axis label.
2. Visual grouping of parts of the x-axis, so that we can for instance specify the date only once for multiple ticks that occur on that date (but at different times). Something like the attached (google) example. How the grouping occurs should be dynamic and depend on zoom level (i.e. days, weeks, months, years).

Preferably we would use a purely declarative method (we use MVVM and try to keep the code behind to a minimum), we want to avoid having to do this programmatically.
Are the described scenarios possible with the line chart? Is there documentation describing how to do this?

I try to use the RadTreeview as a property in the class like this

 

public class ClassName: WebAdminPageBase

 

{

 

public RadTreeView trvGlobalNavFooter { get; set; }

 

...
}
But I get the error
Error 1 The type 'System.Web.UI.IScriptControl' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. D:\Projects\Henry's Work area\NIAMS.GlobalNav\NIAMS.GlobalNavAndFooterAdmnSettings\NIAMSGlobalNavFootersetng.cs 21 28 NIAMS.GlobalNavAndFooterAdmnSettings


When I use RadTreeview as variable it works lik this

 

protected override void OnLoad(EventArgs e)

 

 

{

 

 

RadTreeView trvGlobalNavFooter = new RadTreeView();
...
}

The problem is that I need to use RadTreeview as a property. How Can I fix this problem??
Thx
HANK

 

I must surely be overlooking something obvious, but ..   how do you bind to the RadNumericUpDown control?  What property do you bind to?  Is there not some numeric or integer property that we can bind directly to?

I'm looking through the .chm help file but see nothing whatsoever that mentions this basic bit of information.

Perhaps I haven't had enough coffee today.

james hurst

Hi,

is it possible to to set the length of the timeslots to a custom period (for example to one week).
In RadScheduler i was able to do


How can I achieve this in ScheduleView?

thanks in advance,

michael

Hi,

I have the same issue as highlighted in this thread: http://www.telerik.com/community/forums/wpf/docking/control-contextmenu-in-a-docking-radpane-does-not-show-up.aspx

However, setting the ContextMenuItemTemplate to null as shown in the documentation does not work


<telerik:RadPane ContextMenuTemplate="{x:Null}">

Hello Telerik Team,

In my WPF application I'm using your Pyramid3D Chart. In that I want to show couple of things, like
1) I have to show the respective count as a tooltip on the hover of respective areas (in my case they are High, Medium and Low). I'm trying to achieving this by using below code, but didn't get proper output.

2) Also I want to show the chart according to the LegendLabel (like high show come first and then Medium and then Low). But it is currently showing in a random order (i.e in my case Medium priority is showing at the top and then High is showing) . Just want to know how we can manage this behavior.

For more clarification, please find the screenshot of the same as an attachment.

I'm using a RadWindow but when I do ShowDialog no background is displayed.  What do I need to do to make the ModalBackground show?  Does't work for ShowDialog or Alert.

Hi,

I wanted to implement the OnItemDataBound event feature in RadGridView control.


Please, let me know if there is any solution to this issue.

Regards,
Hirak

Hello,

Our application uses gridviews to display hierarchical data using two separate data tables that share a key for lookup purposes.

The application previously used WinControls RadGridView and joined the two tables using a GridViewRelation. 

                this.Grid.BeginUpdate();
                this.Grid.MasterTemplate.Reset();
                Grid.DataSource = datatables[0];
                if (AddDetails)
                {
                    GridViewTemplate template = new GridViewTemplate();
                    template.DataSource = datatables[1];
                    Grid.Templates.Add(template);
 
                    GridViewRelation relation = new GridViewRelation(Grid.MasterTemplate);
                    relation.ChildTemplate = template;
                    relation.RelationName = "Details";
                    relation.ParentColumnNames.Add(PC);
                    relation.ChildColumnNames.Add(CC);
                    Grid.Relations.Add(relation);
                 }

 





Once loaded, the lookup was very fast, i.e. I could expand any row to view the child data more or less 
instantly.

 
However when I switched over to the WPF gridview, performance for the same input became 
unacceptably slow, for example it takes 
approximately 2 seconds every time to expand a row to view the child data.

The WPF xaml looks like so:
   <Grid>
        <telerik:RadGridView x:Name="BugGrid"
                             IsFilteringAllowed="True"
                             IsReadOnly="True"
                             CanUserInsertRows="False"
                             TabIndex="1"
                             AutoGenerateColumns="False"
                             DataLoading="DataLoading"
                             RowHeight="32"
                             MaxColumnWidth="200"
                             EnableRowVirtualization="True"
                             EnableColumnVirtualization="True"
                             DataLoadMode="Asynchronous"
                            
                             >
                             
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding asdfas}"/>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding Blah}"/>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding PC}" IsVisible="False"/>
            </telerik:RadGridView.Columns>
            
            <telerik:RadGridView.ChildTableDefinitions>
                <telerik:GridViewTableDefinition x:Name="Details">
                    <telerik:GridViewTableDefinition.Relation>
                        <telerik:TableRelation>
                            <telerik:TableRelation.FieldNames>
                                <telerik:FieldDescriptorNamePair 
                                    ParentFieldDescriptorName="PC" 
                                    ChildFieldDescriptorName="CC"/>
                            </telerik:TableRelation.FieldNames>
                        </telerik:TableRelation>
                    </telerik:GridViewTableDefinition.Relation>
                </telerik:GridViewTableDefinition>
            </telerik:RadGridView.ChildTableDefinitions>
        </telerik:RadGridView>
    </Grid>


In the code behind I define the properties of the child table in DataLoading

        private void DataLoading(object sender, GridViewDataLoadingEventArgs e)
        {       
            GridViewDataControl dataControl = (GridViewDataControl) sender;
            if (dataControl.ParentRow != null)
            {
                dataControl.AutoGenerateColumns = false;
                dataControl.ShowGroupPanel = false;
                dataControl.IsFilteringAllowed = false;
                dataControl.CanUserFreezeColumns = false;
                dataControl.IsReadOnly = true;
                GridViewDataColumn column = new GridViewDataColumn();
                column.DataMemberBinding = new Binding("CC");
                column.IsVisible = false;
                column = new GridViewDataColumn();
                column.DataMemberBinding = new Binding("Name");
                dataControl.Columns.Add(column);
                column = new GridViewDataColumn();
                column.DataMemberBinding = new Binding("Value");
                dataControl.Columns.Add(column);
            }




I set the data source of the child table definition to the be the data table with the details.



I've been able to determine that it's the looking up of the appropriate child data from 

the data table that is the very slow part (e.g. if the details data table is blank, 

the rows expand instantly) but why is it SO much slower than 
the old WinControls grid, which also worked with the same data using a similar Relationship.



More importantly, how can I speed it up?

There are separate WPF 3.5 & 4.0 installers, but I can't seem to install both at the same time.