Hi.
I try to use RadClientExportManager witch OpenStreetMaps control. When I plot *.gpx file on the map ClientExportManager have a problem with export to pdf or png those lines.
I dont have controls on the map after exoprt too.
See attachat pictures.
Capture1 - oryginal
Capture 2 - exported

Krzysztof

I am seeing an intermittent problem where users are getting the exception above when RadListView perfoms a DataBind. I am not sure how it can happen, because my code creates a data table and assigns it to the RadListView. Even if it failed to add anything to the data table, it wouldn't cause an exception. Could this be caused by one of the controls in the template?

Here's the stack trace:
ERROR=Cannot perform this operation when DataSource is not assigned. STACK TRACE= 
at Telerik.Web.UI.ListViewNullEnumerable.get_DataSourceCount() 
at Telerik.Web.UI.RadListView.CreateChildControls(IEnumerable dataSource, Boolean dataBinding) 
at Telerik.Web.UI.RadListView.PerformDataBinding(IEnumerable data) 
at System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) 
at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) 
at System.Web.UI.WebControls.DataBoundControl.PerformSelect() at Telerik.Web.UI.RadListView.PerformSelect() 
at System.Web.UI.WebControls.BaseDataBoundControl.DataBind() at Telerik.Web.UI.RadListView.DataBind() 
<my code..>

Here's the HTML:


The CodeBehind looks like this:

I have a simple radgrid (markup below) that is populated with a DataTable, such as the example below;

Flag  Rank
J        3
X       8

In the edit mode I want to change the values of the Rank column, and on update I want the grid to reflect the new value. I don't want to post the value back to the original datasource - I just want it to persist in the radgrid.  In another operation I will use the values in the radgrid after the user makes their edits.

I imagine this is simple to do but I am not seeing it.  Can you point me in the right direction?

if I have a row selected (this is done to view and image in a rad window) and then
I hit a column header to sort, the selected index change event is fired
and the previous selected row fires off and shows the image again.

how can I stop this from happening.

Thanks Troy

See above.

Hello

I am using a RadComboBox inside a RadGrid.

The RadComboBox is populated by a web service.

The radgrid is being used as a form, where the user can input data to the grid (one row at a time) then click on "insert".

When the user clicks "insert" I need to get access to the value chosen by the user in the RadComboBox.

Below I have put my aspx and then my code-behind for the OnInsert event.

How can I finish my OnInsert event so that I have access to the value chosen by the user in the RadComboBox?

See title.

Hi,



I’m after some advice please.  My aim is to setup a dynamic sort of roadmap.  Visually this would need to be a grid comprising of twelve columns (represents the next 12 months) and then each activity would exists as a row.

So far I’ve got the grid displaying with the dynamic columns using this simple code:

   DataTable table = new
DataTable();

 

            var startDate = new DateTime(2015, 3, 1);

            var months = Enumerable.Range(0,
11)

                      
.Select(startDate.AddMonths)

                       .Select(m =>
m.ToString("yyyy MMMM"))

                       .ToList();

 

            foreach (string month
in months)

            {

               
table.Columns.Add(month);

            }

 

The next chahlenge was get the rows to appear correctly.  To enable this I created a simple test database table.

I then loop through each row of the tasking table and attempt to match the target_date value with the column date value, if I get a match I insert the data at the correct position

Here is the code I use:

     foreach (DataRow
row in dtroadmapdata.Rows)

            {

               
foreach (DataColumn
col in table.Columns)

               
{

                   
if ((string)row["target_date"] == col.ColumnName)

                   
{

                        DataRow dr = table.NewRow();

                        dr[col.Ordinal] = row["task"];

                        table.Rows.Add(dr);

                   
}

               
}

            }

 

So far so good. However instead of just displaying text I need to insert an image (ideally with an embedded hyperlink)

How can I accomplish this please, tricky because I have no template fields because the columns are creating on the fly.

Any suggestions greatly appreciated.

In my tree, the leaves are the data carriers, but I want a click on a particular node to (visually) select itself and all its descending nodes. I am then using the list of selected nodes in an Ajax request.

But I haven't been able to figure out how to accomplish this.

I started out by selecting all the node's children:

var toSelect = !node.get_selected();

if (toSelect)
                node.select();
            else
                node.unselect();

 children.forEach(function(child) {
                if (toSelect )
                    child.select();                    
                else
                    child.unselect();
            });

This does indeed select all the nodes. The problem though, is that it does not show (they don't turn blue). So I was looking for a way to do this through the Telerik client side API, but failed. So I turned to Jquery:

var tree = $find("rtCustomerGroups");
var nodes = tree.get_nodes();

nodes.forEach(function(node) {
if (node.get_selected())
node.addClass("rtSelected");
else
node.removeClass("rtSelected");

The problem with this approach is that, while it works visually, the browser does not seem to like it - as it's complaining (sometimes) with a typeError saying addClass/removeClass aren't functions.

This also breaks the javascript as the next line, calling the Ajax function, never gets run.

This really bugs me, as the selection really works the way I want, including multi selection with ctrl click.

In my tree, the leaves are the data carriers, but I want a click on a particular node to (visually) select itself and all its descending nodes. I am then using the list of selected nodes in an Ajax request.

But I haven't been able to figure out how to accomplish this.

I started out by selecting all the node's children:

var toSelect = !node.get_selected();

if (toSelect)
                node.select();
            else
                node.unselect();

 children.forEach(function(child) {
                if (toSelect )
                    child.select();                    
                else
                    child.unselect();
            });

This does indeed select all the nodes. The problem though, is that it does not show (they don't turn blue). So I was looking for a way to do this through the Telerik client side API, but failed. So I turned to Jquery:

var tree = $find("rtCustomerGroups");
var nodes = tree.get_nodes();

nodes.forEach(function(node) {
if (node.get_selected())
node.addClass("rtSelected");
else
node.removeClass("rtSelected");

The problem with this approach is that, while it works visually, the browser does not seem to like it - as it's complaining (sometimes) with a typeError saying addClass/removeClass aren't functions.

This also breaks the javascript as the next line, calling the Ajax function, never gets run.

This really bugs me, as the selection really works the way I want, including multi selection with ctrl click.