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6 answers
597 views

Is there currently a way to use DropDownList that would allow a USER to delete an item?  We are creating a facility of saved searches and we'd love to be able to allow the user to be able to click an 'X' in a dropdown to trigger a delete of the item from the list (and ultimately the database) as seen in the attached screen shot.

 

 

Dimitar
Telerik team
 answered on 31 Aug 2018
1 answer
149 views

We are using Telerik Rad-editor (Version: 2017.2.503.40) in our application. The Rad-editor control which we use looks like the sample you provided in "Save in database" link.
We are facing 1 issue while uploading image through Image Manager control. If we upload an image then we face 1 console error. Below is the description for the error.
ScriptResource.axd?d=WumqVucm-BTOpradDSIl6FwWq2Nf8yJ7sqq9-igzn7fhpcm7LMUuXAF__xzJt_PP7G8atwaBX_21lH9wtho_Q-JsnyL97IPmZiErbgIsKQvtmeYlHiL_GqtD3HsMVT9KS6u1-fBfjgRuY07t3m9OjNcjVdzCqYRpX7UHxymyD6WPAuy90&t=ffffffffad4b7194:5 Uncaught Error: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500
Can you please provide us the solution/your suggestions please?

Thanks in advance.

Rumen
Telerik team
 answered on 31 Aug 2018
3 answers
2.1K+ views

Hello.

I have a dropdownlist for Contact Name in a kendo grid as shown in the attachment.

When I click on the Manage Contacts button, I get a pop up which has a grid where I insert contacts.

After inserting/updating contacts and closing the popup, the Contact Name dropdownlist should display the new contacts which have just been inserted when I click on Edit for that particular row.

But this not happening. 

The code for the Contact Name editor template is as follows:

@(Html.Kendo().DropDownList()
.Name("ContactName")
.ValuePrimitive(true)
.DataValueField("ContactName")
.DataTextField("ContactName")
.OptionLabel(" ")
.DataSource(source =>
{
    source.Read(read =>
    {
        read.Action("GetVendorContacts", "VendorCont")
        .Data("filterContactName");
    })
    .ServerFiltering(true);
})
    //.AutoBind(false)
    .CascadeFrom("Vendor")
)

Is there a way to refresh the dropdown list when I click on the Edit button on the row or when I click on the dropdown list to select contacts?

I have tried to refresh the dropdownlist using the BeforeEdit and Save events, but it did not work.

This is very urgent and any help will be greatly appreciated.

 

Thanks and Regards

 

Veselin Tsvetanov
Telerik team
 answered on 30 Aug 2018
2 answers
691 views

Hi,

I have a detail template in a grid. In the last column I want to have a dropdown menu based on a condition. In another (regular) grid I did this:

columns.Template(@<text></text>).ClientTemplate(@"<div class='dropdown'>
                                                            <a data-toggle='dropdown' class='primarycolor' href=''><i class='fa fa-ellipsis-v fa-2x'></i></a>
                                                            <ul class='dropdown-menu dm-icon pull-right'>"
+ "# if (ShowEditLink) { # <li><a class='k-button-icontext editReg' href='#=EditLink#' data-rid='#=Id#'>" + translator.Translate("EDIT_REGISTRATION") + "</a></li> # } #"
+ "</ul></div>").HtmlAttributes(new { @class = "dropdown-gridcell" }).Width(20);

 

Now I know that in the child/detail context I have to escape template expression with "\\#=fieldName\\#. Found here: https://demos.telerik.com/aspnet-mvc/grid/detailtemplate

What I'm trying is this:

columns.Template(@<text></text>).ClientTemplate(@"<div class='dropdown'>" +
  "<a data-toggle='dropdown' class='primarycolor' href=''><i class='fa fa-ellipsis-v fa-2x'></i></a>" +
  "<ul class='dropdown-menu dm-icon pull-right'>" +
"# if (booleanProperty) { # <li><a class='k-button-icontext' href='' data-spid='#=Id#'>" + translator.Translate("CANCEL") + "</a></li> # } #" +
"</ul></div>").HtmlAttributes(new  {  @class = "dropdown-gridcell"  }).Width(20);

where "booleanProperty" is a property of the viewModel in the child grid. This doesn't work because it doesn't recognize "booleanProperty" since it thinks it is in the viewModel of the parent grid. I have looked at the following posts:

https://www.telerik.com/forums/nested-detail-grid-clienttemplate-conditional-binding-expression-error

https://docs.telerik.com/aspnet-mvc/helpers/grid/faq#how-to-display-checkboxes-in-ajax-bound-grids

 

and tried this as well:

columns.Template(@<text></text>).ClientTemplate("\\#=showLink(booleanPropoerty, Id)\\#").Title("").HtmlAttributes(new  {  @class = "dropdown-gridcell"  }).Width(20);

function showLink(booleanProperty, id) {

var returnValue = "<div class='dropdown'><a data-toggle='dropdown' class='primarycolor' href=''><i class='fa fa-ellipsis-v fa-2x'></i></a><ul class='dropdown-menu dm-icon pull-right'>";

if (booleanProperty) {
return "<li><a class='k-button-icontext' href='' data-spid='" + id + "'>" + $('#stringValue').val() + "</a></li>";
}

returnValue += "</li></div>";

return returnValue;
}

This way I get returned a value but the required javascript for the dropdown list doesn't work.

 

Is there a solution for this?

 

Thank you,

Jokull

Jokull
Top achievements
Rank 1
 answered on 30 Aug 2018
1 answer
222 views

Grid data source is as follow:

public class Customer

{

    public string customer_id { get; set; } = "";

    public string customer_name { get; set; } = "";

    public List<Order> Orders { get; set; } = "";

    public List<Delivery> Delivery{ get; set; } = "";

}

public class Order

{

    public string order_id { get; set; } = "";

}

 

public class Delivery
{
    public string delivery_id { get; set; } = "";
}

 

My design:

Master grid will present Customer record(List<Customer>), and when I click edit button, it will pop up a edit template

and edit template will include Customer's data and two sub grids(Order, Delivery). 

 

My question is I know if I want to get string, it would be "#=customer_id#" but I don't know if I want to get List -- Order and Delivery -- to bind sub grids data source, how can I do.

Does anyone help me?

Viktor Tachev
Telerik team
 answered on 30 Aug 2018
3 answers
336 views
Hello.
I have a dropdownlist for Contact Name in a kendo grid as shown in the attachment.
When I click on the Manage Contacts button, I get a pop up which has a grid where I insert contacts.
After inserting/updating contacts and closing the popup, the Contact Name dropdownlist should display the new contacts which have just been inserted when I click on Edit for that particular row.
But this not happening. 
The code for the Contact Name editor template is as follows:
@(Html.Kendo().DropDownList()
.Name("ContactName")
.ValuePrimitive(true)
.DataValueField("ContactName")
.DataTextField("ContactName")
.OptionLabel(" ")
.DataSource(source =>
{
    source.Read(read =>
    {
        read.Action("GetVendorContacts", "VendorCont")
        .Data("filterContactName");
    })
    .ServerFiltering(true);
})
    //.AutoBind(false)
    .CascadeFrom("Vendor")
)
Is there a way to refresh the dropdown list when I click on the Edit button on the row or when I click on the dropdown list to select contacts?
I have tried to refresh the dropdownlist using the BeforeEdit and Save events, but it did not work.
This is very urgent and any help will be greatly appreciated.

Thanks and Regards
Georgi
Telerik team
 answered on 30 Aug 2018
3 answers
849 views

Hi, I realized the 2 bar chart in a single mvc5/bootstrap page as shown in the image "actual.jpg" (see the code) I would like to obtain the result in "wanted.jpg" in short an overlapping bar chart and changing categories colors, there is a way to do this?

Thank You in advance.

code:
<div class="container-fluid">
    <div class="row">
        <div class="col-xs-18 col-md-12">
            @(Html.Kendo().Chart()
                                    .Name("chart-multi")
                                    .Title("First")
                                    .Legend(legend => legend
                                        .Position(ChartLegendPosition.Top)
                                    )
                                    .Series(series =>
                                    {
                                        series
                                            .Column(new int[] { 20, 40, 45, 30, 50 })
                                            .Color("#cc6e38")
                                            .Spacing(-1)
                                            .Name("on battery");
                                        series
                                            .Column(new int[] { 20, 30, 35, 35, 40 })
                                            .Color("#ef955f")
                                            .Name("on gas");
                                    })
                                    .CategoryAxis(axis => axis
                                        .Categories("Mon", "Tue", "Wed", "Thu", "Fri")
                                        .AxisCrossingValue(0, 10)
                                    )
                                    .ValueAxis(axis => axis
                                        .Numeric()
                                            .Title("miles")
                                            .Min(0).Max(100)
                                    )
                                    .ValueAxis(axis => axis
                                        .Numeric("km")
                                            .Title("km")
                                            .Min(0).Max(161).MajorUnit(32)
                                    )
            )
        </div>
    </div>
</div>

<div class="container-fluid">
    <div class="row">
        <div class="col-xs-18 col-md-12">
            @(Html.Kendo().Chart()
                                        .Name("bar-chart")
                                        .Title("Second")
                                        .Series(series =>
                                        {
                                            series.RangeColumn(new double[][] {
                                                               new double[] {0, 121.99},
                                                               new double[] {38.47, 121.99},
                                                               new double[] {16.17, 38.47},
                                                               new double[] {0, 16.17}
                                            }).Labels(labels => labels
                                                .Visible(true)
                                                .From(from => from.Template("#=value.from#"))
                                                .To(to => to.Template("#=value.to#")));
                                        })
                                        .CategoryAxis(axis => axis
                                            .Categories("Total", "Done", "Committed", "Uncommitted")
                                        )
                                        .Tooltip(tooltip => tooltip
                                            .Visible(true)
                                            .Template("#= value.to - value.from #")
                                        )
            )
        </div>
    </div>
</div>

Alex Hajigeorgieva
Telerik team
 answered on 29 Aug 2018
1 answer
1.1K+ views

Hi All,

I want to display an icon in the kendo grid at the last with click event functionality ,Kindly provide me a sample .Please find the attached screen shot how it should be.

In the grid display my code is displayed below

  columns.Bound(p => p.CampaignName).Title("Campaign Name").Width(120).HtmlAttributes(new { @class= "text-left" });
  columns.Bound(p => p.CampaignType).Title("Channel Type").Width(100).HtmlAttributes(new { @class = "text-left" });
  columns.Bound(p => p.LeadType).Title("Lead Type").Width(60).HtmlAttributes(new { @class = "text-left" });

  ///Here display images/icons code///

Kindly help me to achieve the above scenario

Thanks & Regards,

Sampath

Preslav
Telerik team
 answered on 28 Aug 2018
1 answer
440 views

I am using the grid with pop up editing. When a record is being created or updated we perform some validation logic to make sure a record with the same name value is not already present. If one if found we do not create or update the record and need to alert the user of this. I've looked for this but everything I've found deals with if an error has occurred and in this case no error occurs but the code simply does not continue.

public ActionResult Classification_Create([DataSourceRequest] DataSourceRequest request, Classification classification)
        {
            if (classification != null && ModelState.IsValid)
            {
                this.Create(classification);
            }
            return Json(new[] { classification }.ToDataSourceResult(request, ModelState));
        }
 
 private void Create(Classification classification)
        {
            try
            {
                // Check for duplicate before adding
                var classificationCheck = _db.Classifications.FirstOrDefault(x => x.Name == classification.Name && x.DivisionId == classification.DivisionId);
 
                if (classificationCheck == null)
                {
                    classification.Active = true;
                    _db.Classifications.Add(classification);
                    _db.SaveChanges();
 
                    // Log the creation
                    Logging.CreateLog("Classification", classification.Id, "New classification record created", PlatformSession.CurrApplications[PlatformApplicationSession.OperationHighlights]);
                }
                else
                {
                    // Check to see if it's just makred as inactive and return a message to user
                    string errorMessage = !classificationCheck.Active ? "A classification with this name already exists but is simply in-active. Please locate this classification and re-activate it." : "A classification with this name already exists for this division. Please check the data again and re-try.";
                    ViewBag.Error = errorMessage;
                }
            }
            catch (Exception ex)
            {
                // Log the error
                ExceptionHandling.CreateErrorLog(ex, PlatformSession.CurrApplications[PlatformApplicationSession.OperationHighlights]);
                // Send the user to a notification screen.
                string errorMessage = "There was an issue creating the routing template and this has been logged. Please try again but if this persists please contact a platform administrator.";
                ViewBag.Error = errorMessage;
            }
        }

 

In the Create method we perform a simply check to see if this record exists. If so we do not create the record and place a message into a ViewBag object. In the current layout the pop-up window goes away and nothing has been added. I would like to have the window stay in place and another window appear that contains the message the server placed into the ViewBag object.

 

 

Viktor Tachev
Telerik team
 answered on 28 Aug 2018
1 answer
1.2K+ views

Hi,
My grid uses Ajax to load its entire content at initial load.Paging/Filtering/Sorting all done locally afterwards. I would like to enable interactive Grouping that mimics as closely as possible the Telerik Windows Forms Grid.

When the user groups on a column, the grid should display initially collapsed groups with as many group headers as fit into the given page size. Ideally, The group headers should also indicate the number of child rows in the group. In addition I should be able to sort the group headers according to the count of members (largest group first).
I had a look at documentation but most samples seem to use the databind event which is as far as I know not fired when the user selects grouping after data load.
I'm a beginner with ASP.NET MVC so I might have missed the obvious.

Thanks and kind regards
Erwin

Preslav
Telerik team
 answered on 28 Aug 2018
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