How can I make chart holding render until the datamanger get the new response

[Feifan]

Hi Team,

Can I ask you a question? I have a chart and I want it to re-render when I toggle a switch. The thing is , the url of the DataManager will change once I toggle the switch, but the chart will re-render before the new data being feed back from the back-end. What can I do to achieve this feature?

Really appreciate your help

[Durga Gopalakrishnan]

Hi Feifan, 

 

We are validating your reported scenario. We will update the status within two business days(17^th March, 2020). We appreciate your patience until then. 

 

Regards, 

Durga G 

[Baby Palanidurai]

Hi Feifan,  

  

Greetings from Syncfusion.  

  

  

We are able to reproduce the reported issue from our end. So, we have created a feedback for this, and we will resolve this issue and include in our first weekly release after our volume 1 main release, which is expected to be roll out at First week of April 2020.   

  

Feedback link - https://www.syncfusion.com/feedback/12834/ 

  

The provided feedback link is private, and you need to login to view this feedback. If you have any more specification/precise replication procedure or a scenario to be tested, you can add it as a comment in the portal.   

  

  

Regards,  

Baby.  

[Durga Gopalakrishnan]

Hi Feifan, 

We regret for inconvenience. Due to some technical difficulties, we are unable to provide the fix for reported issue. We will include the fix in our upcoming volume 1 sp1 release which is expected to be out at the mid of May 2020. We appreciate your patience until then 

Regards, 

Durga G 

[Durga Gopalakrishnan]

Hi Feifan, 

 

We will include the fix for reported issue in our upcoming volume 2 main release which is expected to be rolled out at end of June, 2020. We appreciate your patience until then. 

Regards, 

Durga G 

[Durga Gopalakrishnan]

Hi Feifan, 

We regret for inconvenience. Since the reported issue is related to core team, we have forwarded this to concern team. We will include the fix in our upcoming volume 2 SP 1 release which is expected to be rolled out at end of August, 2020. We appreciate your patience until then. 

Regards, 

Durga G  

[Durga Gopalakrishnan]

Hi Feifan, 

 

The DataManager properties cannot be modified or changed after initializing, hence datamanager URL property cannot be changed on a toggle switch. Instead we suggest you to change the DataManager instance itself on toggle button switch. Kindly refer the below code example   

  

<SfSwitch @bind-Checked="isChecked" TChecked="bool" ValueChange="changed"></SfSwitch>    

<SfChart>  

    @if (isChecked)  

    {  

        <SfDataManager Url="https://ej2services.syncfusion.com/production/web-services/api/Orders" Adaptor="Adaptors.WebApiAdaptor"></SfDataManager>  

    }  

    else  

    {  

        <SfDataManager Url="https://mvc.syncfusion.com/Services/Northwnd.svc/Tasks"></SfDataManager>  

    }  

    <ChartPrimaryXAxis Title="Orders" ValueType="Syncfusion.Blazor.Charts.ValueType.Category"  

                       RangePadding="ChartRangePadding.Additional"></ChartPrimaryXAxis>  

    <ChartSeriesCollection>  

        <ChartSeries XName=@x YName=@y Type="ChartSeriesType.Column"></ChartSeries>  

    </ChartSeriesCollection>  

</SfChart>  

   

@code{  

    public string x { get; set; } = "OrderID";  

    public string y { get; set; } = "Freight";  

   

    private bool isChecked = true;  

   

    private void changed(Syncfusion.Blazor.Buttons.ChangeEventArgs<bool> args)  

    {  

        if (!args.Checked)  

        {  

            this.x = "Assignee";  

            this.y = "Estimate";  

        }  

        else  

        {  

            this.x = "OrderID";  

            this.y = "Freight";  

        }  

        this.StateHasChanged();  

    }  

}  

  

Kindly download the sample from below   

  

Sample: https://www.syncfusion.com/downloads/support/forum/152386/ze/SFChart211631627 

  

Please get back to us if you have further queries.   

 

Regards, 

Durga G