In data grids it can sometimes be quite helpful to be able to export the content for use outside of the application.

In these cases it can be common to export to CSV or PDF.

It would be helpful to have a TreeGrid control which is quite similar to a data grid however it allows hierarchy relationships among the items.

This would essentially have all the features of the standard data grid however one column would be expandable.

The ability to specify and display a context menu would be very helpful.

Hi,

Ran in to an issue here. To avoid modals getting hidden behind animation containers, we use a class for a div and "wrap" the modal in providing it with a higher z-index than the animation container(s).

However, when using a DatePicker inside this module the calender will be hidden behind the modal (since it is in an animation container).

 

Any suggestion how to overcome this problem?

 

Thanks & br,

Sten

Please add a PDF Viewer blazor component!

For the meantime: Could you provide an example of how to use the Telerik UI for net core PDF Viewer in a NET core 3 Blazor app?

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.

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.

Sidebar component with hamburger menu

Progress bar / Spinner components

Toast component to show notification

Slider component

In many cases in a grid you may have additional data that the user can view however you don't want to show it as a default.

In these cases it would be nice to create the column normally, set the visible="false", and then have a built in column chooser feature.
This chooser would be a simple popup with a list of columns where the user can check whether visible or not.

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

Hi there,

i'm struggling with kendo theming. I'm trying to implement a material ui with telerik ui for blazor. I did follow the steps in the getting started pages but i'm getting a half baked ui which is missing essential parts like the focus animations for textboxes like shown in the textbox demo: https://demos.telerik.com/blazor-ui/textbox/overview.

My recent approach was to compile the files in the kendo theme Git repository but these also don't work.

What am i doing wrong? How exactly did you achieve the full material experience in the demos?

So lonG

Daniel

If Possible a basic UI Layout manager for page layout and component layouts be nice, click and drag... something like radzen but working within Visual Studio..

At the moment only the DateInput has it and it is hardcoded for the pickers. I would like to be able to set it for the pickers as well

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)

This is just feedback on two of your old controls that were really useful that I would like to use again on Microsoft's new technology.

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.

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?