Questions on UI for ASP.NET Core Forum

3 answers

79 views

The chart tooltip area shield the mouse's perceive!

when moving the mouse above the datapoint of the chart,the tooltip will be display in the right or up position,

and then if moving mouse to the right or up,if the mouse is above the tooltip area,
the mouse can't perceivel the next datapoint of chart,unless the mouse leave the tooltip area.
if the tooltip area don't effect the mouse check the other datapoint,so that switch to the other tooltip info,
it will be better.

Chart

answered on 26 Apr 2019

5 answers

1.9K+ views

Set color for each category in single series chart

I know this has been asked before and referenced in regard to jquery (https://www.telerik.com/forums/different-color-for-each-bar-in-bar-chart-for-a-single-series-) as well as others but I can't seem to figure out how to do it in Core. I have a simple Column chart from bound sql datasource. Is it possible to set the category columns to different colors? Note that the number of categories is variable.

Here is my controller action:

public ActionResult AttributeSummary_Read(int? id)

{

var assessmentId = new SqlParameter("@assessmentId", id);

var data = _context.Reports.FromSql("rpt_AttributeSummaryBySite @assessmentId", assessmentId).AsNoTracking().ToList();

List<Report_AttributeSummaryVM> AttributeSummaryList = data.Select(x => new Report_AttributeSummaryVM

{

AttributeName = x.AttributeName,

SumAssessmentValue = x.SumAssessmentValue,

AssessmentYear = x.AssessmentYear

}).ToList();

return Json(AttributeSummaryList);

}

As an example with 3 categories, my stored proc produces this data:

OutcomeName | AssessmentYear | AvgOutcomeValue
Best Practices in Ministry 2019 5.16
Leadership Development 2019 6
Strategic Alignment of Ministries 2019 4.59

Here is the Razor View

<div class="container w-75">

<div class="demo-section k-content wide">

@(Html.Kendo().Chart<ICPCore.Models.Reports>()

.Name("chartOutcomeSummary")

.Title("Outcomes Summary by Site")

.Legend(legend => legend

.Position(ChartLegendPosition.Top)

)

.DataSource(ds => ds.Read(read => read.Action("OutcomeAreaSummary_Read", "Reports").Data("curId")))

.Series(series =>

{

series.Column(model => model.AvgOutcomeValue).Name("AvgOutcomeValue").CategoryField("OutcomeName");

})

.CategoryAxis(axis => axis

.Categories(model=>model.OutcomeName)

.Labels(labels => labels.Rotation(0))

.MajorGridLines(lines => lines.Visible(false))

)

.ValueAxis(axis => axis.Numeric()

.Labels(labels => labels.Format("{0:N0}"))

.MajorUnit(1)

.Max(10)

.Min(1)

.Line(line => line.Visible(false))

)

.Tooltip(tooltip => tooltip

.Visible(true)

.Format("{0:N0}")

)

.AutoBind(true)

)

</div>

Chart

answered on 25 Apr 2019

1 answer

974 views

.Net Core / Rider / Ubuntu

Hello,

I would like use kendo asp.net core on Rider installed on Ubuntu.

is possible ? if no, a version is planned ?

Thanks for answer

General Discussions

answered on 23 Apr 2019

6 answers

1.1K+ views

Category names in line chart with dynamic series

Using this link: https://docs.telerik.com/aspnet-mvc/helpers/chart/how-to/create-dynamic-series#create-view-model-bound-dynamic-series

I managed to get a working chart with multiple series, but I can't get the category names at the same time. From the link it appears that I should be able to provide an IEnumerable (or something?) to give the list of category names (see the commented part in the code I provide below) but when I do this I just get [object] as the result. The data type is a List<string>.

@(Html.Kendo().Chart(Model.ApplicationStepsByDayResults.ValuesForLineChart)

.Name("applicationStepsByDay")

.Legend(legend => legend.Visible(true))

.SeriesDefaults(seriesDefaults =>

seriesDefaults.Line().Style(ChartLineStyle.Smooth)

)

.CategoryAxis(axis => axis

.Categories(Model.ApplicationStepsByDayResults.CategoryNames) // <- from example looks like I can add names here

.MajorGridLines(lines => lines.Visible(false))

)

.Series(series =>

{

foreach(var s in Model.ApplicationStepsByDayResults.ValuesForLineChart)

{

series.Line(s.Points).Name(s.Name);

}

})

.ValueAxis(axis => axis.Numeric()

.Labels(labels => labels.Format("{0}"))

.Line(lines => lines.Visible(false))

)

.Tooltip(tooltip => tooltip

.Visible(true)

.Shared(true)

.Format("{0}")

)

I am not sure how to use the .Categories(a => a.Categories.... to insert the category names when they are dynamic.

As a side note I can get the category names to appear is I create a field for it for each series point and use the .CategoryField(xxx) function when setting up the series but then I lose the data points.

One last question, I would love to be able to see the docs for these functions. Visual studio indicates there are overloads but the UI does not provide them and I can't find any docs on the telerik site. It would be easier to sort this out on my own if there was documentation for the MVC helper methods.

Thanks,

Brian

Chart

answered on 22 Apr 2019

1 answer

323 views

Chart tooltip does not wrap text

Is there anyway to force the text to wrap inside of a chart tool tip? I want to display a system message that is several lines long.

I cant add line break inside the template because i am only displaying one large message.

Placing it inside of a div with a defined width did not change anything.

See dataitem.SystemMessage-

<kendo-chart>

<tooltip template="<div style='word-wrap:break-word;width:auto;word-break:break-all;'>#=dataItem.SystemMessage#</div>" visible="true">

</tooltip>

</kendo-chart>

Example:

https://dojo.telerik.com/umEGOBes/4

Chart

answered on 22 Apr 2019

1 answer

151 views

MVC WriteAction

I have not found documentation on how to use the WriteAction method on your Button. Can you give me a link? I have an MVC application and I'm using a multi-step wizard that utilizes your tab strip to load PartialViews. The final page on this Wizard presents a Save button which should call my Create method on the Controller.

Button

answered on 19 Apr 2019

3 answers

84 views

Bug? when creating new projects

Using Visual Studio 2019, I believe I have encountered a new bug. When I have an existing solution, full of various .NET projects of various types, adding a new Telerik Core Project does not actually create a Telerik project.

To be specific, using the menu Extensions/Telerik/Kendo UI for ASP.NET Core/Create menu item results in the "standard" visual studio template being used. Absolutely zero Kendo/Telerik logic gets added to the resulting project. If I use the new "magic search box", located in middle of top of VS 2019 window, and enter "add new telerik core mvc" the resulting listed items actually take you to the correct launch point. That is to say the resulting project does actually contain the needed references.

While both avenues result in a newly added project to your solution, the second option appears to be the only avenue to using the pre-defined Telerik Template.

In fairness to Telerik this might actually be a Visual Studio bug.

Installer and VS Extensions

answered on 19 Apr 2019

10 answers

1.1K+ views

Complete Custom Filtering Example

Are there any links or code examples that the community could share that shows how to write totally custom column filters?

Better yet, add more content to the bottom of the existing filtering? Grids in this application contain a custom table above the grid with columns that contain list boxes where the user can select one or more items (check boxes)?

Please see attached.

Grid

answered on 19 Apr 2019

2 answers

1.0K+ views

400 Bad Request - Grid AutoBind, read and refresh

I have just started a new contract and althought I am used to using Kendo, this is my first experience using Kendo Core.
Typically I would have my controller, and my action and bind on this using

.DataSource(ds => ds.Read(r => r.Action("RefreshRecommendationGridData", "ReportLookup")))

However the firm that I am at heavily uses routing

[Authorize]

[Route("report-lookups")]

public class ReportLookupController : Controller

{

[AccessRights("Lists")]

[HttpPost]

[Route("report-lesson-recommendations/manage")]

public async Task<IActionResult> RefreshRecommendationGridData([DataSourceRequest] DataSourceRequest request)

{

var result = await _cacheService.SearchForReportLessonRecommendationsAsync(null);

return Json(result.ToDataSourceResult(request));

}

When attempting this and looking through developer tools and the network and when using

.DataSource(ds => ds.Read(r => r.Url("manage"))

I get a 400 Bad Reqest error.

I guess I am missing something, however what that is I am at a complete loss. I suspect its something quite simple, however, I cannot find anything on Telerik site that will help.

When inspecting the headers in Fiddler, I cant see anything wrong.

Grid

answered on 19 Apr 2019

4 answers

156 views

Line Chart Categories Not Displaying Correctly

Hello,

I'm trying to get my chart to display correctly. However, it seems the categories are not correct. Here is my code:

@(Html.Kendo().Chart(Model.CDashBoardLineCounts)

.Name("applicationStepsByDay")

.Legend(legend => legend.Visible(true))

.SeriesDefaults(seriesDefaults =>

seriesDefaults.Line().Style(ChartLineStyle.Smooth)

)

.CategoryAxis(axis => axis

.Categories(Model.Categories)

.MajorGridLines(lines => lines.Visible(false))

)

.Series(series =>

{

foreach (var s in Model.CDashBoardLineCounts)

{

 series.Line(model => model.countofitems)

                           .Name(s.dashcolor)

                .CategoryField("dateofCItem");

}

})

.ValueAxis(axis => axis.Numeric()

.Labels(labels => labels.Format("{0}"))

.Line(lines => lines.Visible(false))

)

.Tooltip(tooltip => tooltip

.Visible(true)

.Shared(true)

.Format("{0}")

)

public IActionResult Index()

{

CombinedDashBoard x = new CombinedDashBoard();

x.CDashBoardLineCounts = GetAllLineChartDetails();

x.Categories = new string[] { "Green", "Red", "Yellow" };

return View(x);

}

public class CombinedDashBoard

{

public List<CDashBoardModifiedPieCounts> CDashBoardPieCounts { get; set; }

public List<CDashBoardModifiedLineCounts> CDashBoardLineCounts { get; set; }

public string[] Categories { get; set; }

}

public class CDashBoardModifiedLineCounts

{

public string dashcolor { get; set; }

public string CItemName { get; set; }

public DateTime dateofCItem { get; set; }

public int countofitems { get; set; }

}

I would like to get a line in the chart for Red (that shows count of items that have the color red mapped to the dates), another line that shows all green items mapped to date per count and one for yellow.

Instead I'm getting the chart image attached

Thank you for your time

Chart

answered on 18 Apr 2019