Are there any plans for the RadDiagram component for Blazor (client or server)?

In addition to the PdfProcessing, I would also like to be able to use a component to show PDFs to my users.

---

ADMIN EDIT

For the time being, a workaround could be to wrap a JS widget, an example is available in this sample project, see the MyKendoPdfViewer.razor component and make sure to include the relevant JS libraries.

Another approach could be a simple iframe that points to a handler that will return the PDF with content-disposition:inline. Most modern browsers will render this inline.

---

Hi,

Any information on when the Layout Components available in AspNetCore will be available in Blazor?

I am currently putting a proposal together to purchase Telerik for Blazor and could really use some of those components to enhance the application than relying on 3rd-Party integrations.

When you have LazyLoading() enabled on an EF context, the grid throws errors similar to

 

 

Here is a sample of the service registration that causes the issue

 

 

Here is the full stack trace

Microsoft.AspNetCore.Components.Server.Circuits.RemoteRenderer: Warning: Unhandled exception rendering component: Object reference not set to an instance of an object.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Blazor.Components.Grid.GridContentCell`1.get_PropInfo()
   at Telerik.Blazor.Components.Grid.GridContentCell`1.get_Value()
   at Telerik.Blazor.Components.Grid.GridContentCell`1.BuildRenderTree(RenderTreeBuilder __builder)
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost: Error: Unhandled exception in circuit '-ctJ-ctr0bp4mytl5k9AxUWcoK3LyC8ybsC6BxFhGhA'.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Blazor.Components.Grid.GridContentCell`1.get_PropInfo()
   at Telerik.Blazor.Components.Grid.GridContentCell`1.get_Value()
   at Telerik.Blazor.Components.Grid.GridContentCell`1.BuildRenderTree(RenderTreeBuilder __builder)
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
[2020-01-31T17:09:22.390Z] Error: System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Blazor.Components.Grid.GridContentCell`1.get_PropInfo()
   at Telerik.Blazor.Components.Grid.GridContentCell`1.get_Value()
   at Telerik.Blazor.Components.Grid.GridContentCell`1.BuildRenderTree(RenderTreeBuilder __builder)
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
[2020-01-31T17:09:22.393Z] Information: Connection disconnected.
Microsoft.AspNetCore.Components.Server.Circuits.RemoteRenderer: Warning: Unhandled exception rendering component: Exception has been thrown by the target of an invocation.

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.NotImplementedException: This is a DynamicProxy2 error: The interceptor attempted to 'Proceed' for method 'Void set_LazyLoader(Microsoft.EntityFrameworkCore.Infrastructure.ILazyLoader)' which has no target. When calling method without target there is no implementation to 'proceed' to and it is the responsibility of the interceptor to mimic the implementation (set return value, out arguments etc)
   at Castle.DynamicProxy.AbstractInvocation.ThrowOnNoTarget()
   at Castle.DynamicProxy.Internal.CompositionInvocation.EnsureValidTarget()
   at Castle.Proxies.Invocations.IProxyLazyLoader_set_LazyLoader.InvokeMethodOnTarget()
   at Castle.DynamicProxy.AbstractInvocation.Proceed()
   at Castle.DynamicProxy.StandardInterceptor.PerformProceed(IInvocation invocation)
   at Castle.DynamicProxy.StandardInterceptor.Intercept(IInvocation invocation)
   at Castle.DynamicProxy.AbstractInvocation.Proceed()
   at Castle.Proxies.AttivitaProxy.set_LazyLoader(ILazyLoader value)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, Object[] index)
   at Telerik.Blazor.Components.TelerikGridBase`1.Clone(TItem original)
   at Telerik.Blazor.Components.TelerikGridBase`1.Edit(GridCommandEventArgs args)
   at Telerik.Blazor.Components.TelerikGridBase`1.ExecuteCommand(Object args)
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Telerik.Blazor.Components.Grid.GridRowBase`1.OnExecuteCommand(GridCommandEventArgs commandArgs)
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Telerik.Blazor.Components.Grid.GridContentCell`1.ExecuteCommandAsync(String commandName)
   at Telerik.Blazor.Components.Grid.GridContentCell`1.EditAsync()
   at Telerik.Blazor.Components.Grid.GridContentCell`1.OnClick()
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle)
Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost: Error: Unhandled exception in circuit '-ctJ-ctr0bp4mytl5k9AxUWcoK3LyC8ybsC6BxFhGhA'.

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.NotImplementedException: This is a DynamicProxy2 error: The interceptor attempted to 'Proceed' for method 'Void set_LazyLoader(Microsoft.EntityFrameworkCore.Infrastructure.ILazyLoader)' which has no target. When calling method without target there is no implementation to 'proceed' to and it is the responsibility of the interceptor to mimic the implementation (set return value, out arguments etc)
   at Castle.DynamicProxy.AbstractInvocation.ThrowOnNoTarget()
   at Castle.DynamicProxy.Internal.CompositionInvocation.EnsureValidTarget()
   at Castle.Proxies.Invocations.IProxyLazyLoader_set_LazyLoader.InvokeMethodOnTarget()
   at Castle.DynamicProxy.AbstractInvocation.Proceed()
   at Castle.DynamicProxy.StandardInterceptor.PerformProceed(IInvocation invocation)
   at Castle.DynamicProxy.StandardInterceptor.Intercept(IInvocation invocation)
   at Castle.DynamicProxy.AbstractInvocation.Proceed()
   at Castle.Proxies.AttivitaProxy.set_LazyLoader(ILazyLoader value)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, Object[] index)
   at Telerik.Blazor.Components.TelerikGridBase`1.Clone(TItem original)
   at Telerik.Blazor.Components.TelerikGridBase`1.Edit(GridCommandEventArgs args)
   at Telerik.Blazor.Components.TelerikGridBase`1.ExecuteCommand(Object args)
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Telerik.Blazor.Components.Grid.GridRowBase`1.OnExecuteCommand(GridCommandEventArgs commandArgs)
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Telerik.Blazor.Components.Grid.GridContentCell`1.ExecuteCommandAsync(String commandName)
   at Telerik.Blazor.Components.Grid.GridContentCell`1.EditAsync()
   at Telerik.Blazor.Components.Grid.GridContentCell`1.OnClick()
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle)

Hi!

 

I want to create a grid with multiselect options (controlled by checkboxes in the first column). I have used code from https://demos.telerik.com/blazor-ui/grid/selection but when i try this code in my project there are no checkboxes in the first column, just empty cells. Am i the only one with this problem?  

 

 

Hello Team;
I'd like to make a suggestion.

When one of the third party vendors became involved in producing Blazor components, they opted to wrap their existing 65+ JS components as "Blazor" components. At first, I though that's not as good as Native components that Telerik is doing.

But, as I then read more about their plan, they basically offered a full solutions from their JS library to developers, so we, the developers can start building a complete business application and as long as the vendor doesn't change the Wrapper API and only change the back end, their changes should work on the developer side.
Their idea was, to give us a jump start with JS and we start using counterpart Native Blazor components, and as as they become available, the components get changed to Native Blazor, and the apps written by us continue working.
I think this is a great strategy to have the full suite available to us from start to build apps than waiting for each Native component to be build.

My suggestion is to do the same, i.e. the word processing component where it is needed and we can build our app using the JS Word processor and by the time we are ready, Telerik might have the Word processor replaced by Native Blazor. This way we can build our apps with a full suite from the start than waiting for essential components to be built.

I hope the team would consider such strategy if possible.
Thanks!

..Ben

Please make the source code available to people with paid licences.

---

ADMIN EDIT

The source code for UI for Blazor will become available. Click the Follow button on the upper left hand side to get a notification email when that happens, and click the Vote button to add your vote for it if you need it.

The current plan is to make the source code available to commercial license holders in November 2021.

---

Hi!

I'm trying out Marin Bratnov's code (from a Link - demonstration code). When i try to write a letter in a TelerikComboBox control it is automatically cleared out. I get the same behavior in my own project too. Filtering TelerikComboBox outside the grid works perfecly. Please check te video. 

Would be nice to have an Expansion Panel like this one:

https://material-ui.com/components/expansion-panels/

 

Accordion control

Slider component

Toast component to show notification

Progress bar / Spinner components

Sidebar component with hamburger menu

I want to prevent users without WriteAccess to see the GridCommandColumn and a custom GridColumn containing some buttons.

Those two columns are the first in my grid.

If I add AuthorizeView tags like this

<AuthorizeView Policy="MyPolicy">

   <GridCommandColumn ...>

      ...

   </GridCommandColumn>

</AuthorizeView>

<AuthorizeView Policy="MyPolicy">

   <GridColumn ...>

      ...

   </GridColumn>

</AuthorizeView>

they will be hidden if the user does not comply to the policy but if he does comply the columns are displayed not as the first columns in the grid but as the last.

As a workaround I now don't hide the columns but their content (by moving the AuthorizeView tags inside the column tags).  This is not a good solution though since I loose valuable horizontal screen-space for displaying empty columns.

Hi,

The idea is to use the new way to present information to user (without specific label) but using the label of the components.

InTelerikTextBox, no matter, I have a Label property.

Is it possible to have the same properties for the other controls ?

Just upgraded to Devcraft complete and I needed a Progress bar and was not able to see it on the current controls.

 

Will you add a Progress Bar Control for Blazor?  I want to use Telerik on all controls in my project as much as possible instead of pulling another control from the public nuget repository.

 

Thanks.

Joel

As the subject says, this component is available in other libraries and is quite useful.  Would like to see it added to the Blazor suite of components.

I'd love to see a file upload component similar to https://github.com/SteveSandersonMS/BlazorInputFile.  Just a wishlish item; not at a priority at all for us.

Would be great to have a DateRangePicker so I don't have to use JS interop to use my old one