Hi,

in my MVC-App I use <authentication mode="Windows" /> and <identity impersonate="true"/> inside web.config which means the current WindowsIdentity is delivered through IIS to SQL-Server. Normally I use the async/await pattern in my code and thus use ToDataSourceResultAsync(...) to get my filtered/sorted/paged results async. When doing so I run into an error. The call from App -> IIS -> SQL-Server is now under the normal "IIS APPPOOL\DefaultAppPool" account which is not a valid SQL-Server user and so the connection is refused. When using the normal ToDataSourceResult(...) call everything works perfect.

The reason for this is the usage of "Task.Factory.StartNew(...)" inside QueryableExtensions.cs. Whenever you use "Task.Factory.StartNew(...)" the impersonation is reset to the default value and is NOT using the identity used inside the MVC-App. Here is a little example (just place the code inside a normal Controller Action):

As a result you get:
Line 1: "App is running as: myDomain\myUser"
Line 4: "New Task is running as: IIS APPPOOL\DefaultAppPool"

At least you should warn in your documentation that this could happen or think about a better solution for implementing "ToDataSourceResultAsync(...)". In my opinion my scenario is not so seldom in the enterprise world so giving a warning should be a good idea.

Regards
Heiko

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.

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.

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

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

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?

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>

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

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.

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.