@(Html.Kendo().Grid<InventoryItemViewModel>()
    .Name("InventoryItemGrid")
    .Columns(columns =>
    {
    columns.Bound(c => c.InventoryItemId).Title("ID").ClientTemplate("#=kendo.toString(InventoryItemId, '000000')#").Media("(min-width: 1200px)").Filterable(ftb => ftb.Multi(true));
    columns.Bound(c => c.Name).Media("(min-width: 1200px)").Filterable(ftb => ftb.Multi(true));
    columns.Bound(c => c.Description).Title("Description").Media("(min-width: 1200px)").Filterable(ftb => ftb.Multi(true));
    columns.Bound(c => c.InventoryItemTypeName).Title("Type").Media("(min-width: 1200px)").Filterable(ftb => ftb.Multi(true));
    columns.Bound(c => c.WetTonnes).ClientTemplate("<span class='source-#=WetTonnesSource#'>#=WetTonnes#</span>").Media("(min-width: 1200px)");
    columns.Bound(c => c.MoisturePercent).ClientTemplate("<span class='source-#=MoisturePercentSource#'>#=MoisturePercent#</span>").Media("(min-width: 1200px)");
    columns.Bound(c => c.CoarseFineRatio).ClientTemplate("<span class='source-#CoarseFineRatioSource#'>#=CoarseFineRatio#</span>").Title("Coarse Percentage").Media("(min-width: 1200px)");
    for (int x = 0; x < 6; x++)
    {
        columns.Bound(c => x).Title(x.ToString()).ClientTemplate(x.ToString());
    }


    columns.Bound(c => c.IsBlended).Media("(min-width: 1200px)").Filterable(ftb => ftb.Multi(true));
    columns.Bound(c => c.Status).ClientTemplate("#=statusTemplate(data)#").Media("(min-width: 1200px)").Filterable(ftb => ftb.Multi(true));

    columns.Bound(c => c.CreatedDate).Media("(min-width: 1200px)").Format("{0:g}").Hidden(true);
    columns.Bound(c => c.CreatedBy).Media("(min-width: 1200px)").Hidden(true);
    columns.Bound(c => c.LastUpdatedDate).Media("(min-width: 1200px)").Format("{0:g}").Hidden(true);
    columns.Bound(c => c.LastUpdatedBy).Media("(min-width: 1200px)").Hidden(true);
    columns.Template(@<text></text>).ClientTemplate("#=resColTemplate(data)#").Title("Details").Media("(max-width: 1200px)");
    })
    .Sortable()
    .Scrollable(s=>s.Height("auto"))
    .Filterable()
    .ColumnMenu(c=>c.Columns(true))
    .Excel(excel => excel
        .FileName("Inventory Item Export.xlsx")
        .Filterable(true)
        .AllPages(true)
        .ProxyURL(Url.Action("Excel_Export_Save", "InventoryItems"))
    )
    .ToolBar(t=>
    {

        t.Template(@<text>
            <div class="toolbar">
                 <label class="k-grid-title-label">Items</label>
<div class="k-grid-toolbar-btns">
<button type="button" class="btn btn-secondary btn-sm" id="ExcludeFilter" data-exclude-state="excluded">
<i class="fa fa-filter" aria-hidden="true"></i>
Exclude Archived
</button>
                     <button id="export" class="btn btn-secondary btn-sm"><i class="fas fa-file-excel"></i></button>
@if (PLS.Library.Authorize.AuthorizeUser(PLS.Models.Enum.AccessLevel.Create, PLS.Models.Enum.SystemSection.Inventory))
{
<a class="btn btn-primary btn-sm"  href="@Url.Action("Create", "InventoryItems", new { Area = "Inventory" })">
Create
</a>
}
</div>
<div class="k-grid-toolbar-search">
<span class="k-textbox k-grid-search k-display-flex">
<input autocomplete="off" placeholder="Search..." title="Search..." class="k-input">
<span class="k-input-icon"><i class="fa fa-search" aria-hidden="true"></i></span>
</span>
</div>
           </div>
            </text>);
    })
    .Search(search =>
    {
        search.Field(f => f.InventoryItemId);
        search.Field(f => f.Name);
        search.Field(f => f.Description);
        search.Field(f => f.InventoryItemTypeName);
        search.Field(f => f.Status);
        search.Field(f => f.WetTonnes);
        search.Field(f => f.CoarseFineRatio);
        search.Field(f => f.MoisturePercent);
    })
    .Pageable(pageable => pageable
        .Refresh(true)
        .PageSizes(true)
        .ButtonCount(5)
    )
    .Selectable(selectable =>
    {
        selectable.Mode(GridSelectionMode.Single);
        selectable.Type(GridSelectionType.Row);
    })
    .Resizable(resize => resize.Columns(true))
    .DataSource(dataSource => dataSource
        .Ajax()
        .Read(read => read.Action("InventoryItems_Read", "InventoryItems"))
        .Sort(sort =>
        {
            sort.Add(f => f.StatusId).Ascending();
            sort.Add(f => f.CreatedDate).Ascending();
        })
        .PageSize(10).ServerOperation(false)
        .Filter(f => f.Add(x => x.Status).IsNotEqualTo("Archived"))
    )
)

 Response status code does not indicate success: 500 (Internal Server Error).
  Retrying 'FindPackagesByIdAsyncCore' for source 'https://nuget.telerik.com/nuget/FindPackagesById()?id='System.Diagnostics.StackTrace'&semVerLevel=2.0.0'.
  Response status code does not indicate success: 500 (Internal Server Error).
  Retrying 'FindPackagesByIdAsyncCore' for source 'https://nuget.telerik.com/nuget/FindPackagesById()?id='System.Xml.XmlDocument'&semVerLevel=2.0.0'.
  Response status code does not indicate success: 500 (Internal Server Error).
  Retrying 'FindPackagesByIdAsyncCore' for source 'https://nuget.telerik.com/nuget/FindPackagesById()?id='System.Xml.XDocument'&semVerLevel=2.0.0'.
  Response status code does not indicate success: 500 (Internal Server Error).
  Retrying 'FindPackagesByIdAsyncCore' for source 'https://nuget.telerik.com/nuget/FindPackagesById()?id='System.Reflection.Emit.ILGeneration'&semVerLevel=2.0.0'.
  Response status code does not indicate success: 500 (Internal Server Error).
  Retrying 'FindPackagesByIdAsyncCore' for source 'https://nuget.telerik.com/nuget/FindPackagesById()?id='System.Composition.TypedParts'&semVerLevel=2.0.0'.
  Response status code does not indicate success: 500 (Internal Server Error).
  Retrying 'FindPackagesByIdAsyncCore' for source 'https://nuget.telerik.com/nuget/FindPackagesById()?id='System.Configuration.ConfigurationManager'&semVerLevel=2.0.0'.
  Response status code does not indicate success: 500 (Internal Server Error).

@using EconExcelExtender.Classes

@model List<PocoAttributeDetail>

@{
    var modelName = ViewBag.ModelName;
    var companySite = ViewBag.CompanySite;
    var inUse = ViewBag.InUse;
    int hasBeenDownloaded = (int)ViewBag.HasBeenDownloaded;
}

<div id="mdlattributeMaintenance" class="modal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-xl" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Attribute Maintenance</h5>
            </div>
            <div id="attributeMaintenanceBody" class="modal-body">

            </div>
        </div>
    </div>
</div>

@if (hasBeenDownloaded == (int)Enums.AttributeOptionDownloadStatus.InAttributesAndOptions)
{

    <div class="row mt-2">
        <div class="col-12 text-center">
            <h6>Attributes for Model @modelName only exist in the Attribute And Options Table</h6>
            <h6>They must be downloaded before adding new records, or editing existing records can take place.</h6>
        </div>
        <div class="col-12 text-center">
            <button type="button" id="btnDownloadAttributes" onclick="" data-text="Download Attributes" class="btn btn-danger form-control btnDownloadAttributes">Download Attributes</button>
        </div>
    </div>


}

@if (hasBeenDownloaded == (int)Enums.AttributeOptionDownloadStatus.None)
{

    <div class="row mt-2">
        <div class="col-12 text-center">
            <h6>There are no attributes for Model @modelName found on the database</h6>
            <h6>They must be entered using this form.</h6>
        </div>
    </div>

}


@if (Model != null)
{

    <div class="mt-2">
        @(Html.Kendo().Grid(Model)
            .Name("grid")
            .TableHtmlAttributes(new {@style="font-size:smaller"})
            .Columns(columns => {


                columns.Bound(p => p.AttributeDetailID).Title("Attribute ID").Width(105);
                columns.Bound(p => p.AttributeCode).Title("Attribute Code").Width(105);
                columns.Bound(p => p.AttributeName).Title("Attribute Name").Width(150);
                columns.Bound(p => p.InputOutput).Title("Input/Output").Width(105);
                columns.Bound(p => p.Type).Title("Type").Width(105);
                columns.Bound(p => p.IsRange).Title("Is Range").Width(80)
                    .ClientTemplate("#= IsRange ? 'Yes' : 'No' #");
                columns.Bound(p => p.HasLabels).Title("Has Range").Width(80)
                    .ClientTemplate("#= HasLabels ? 'Yes' : 'No' #");
                columns.Bound(p => p.InUse).Title("In Use").Width(80)
                    .ClientTemplate("#= InUse ? 'Yes' : 'No' #");
                
                 columns.Command(commands =>
 {
 commands.Edit();
 commands.Destroy();
 });


            })
                .HtmlAttributes(new { style = "height: 550px;" })

                .Sortable()
    .Scrollable(scr=>scr.Height(430))
    .Filterable()
    .Pageable()

    //.Editable(editable => editable.Mode(GridEditMode.PopUp))


    .DataSource(ds => {
        ds.Ajax()
        .Model(model => model.Id(p => p.AttributeDetailID))

     .ServerOperation(false);


        ;



    })
    )
    </div>

}

@using (Ajax.BeginForm("MaintainAttribute", "AttributesAndOptions", null, new AjaxOptions
{
    UpdateTargetId = "attributeMaintenanceBody",
    InsertionMode = InsertionMode.Replace,
    OnComplete = "$('#mdlattributeMaintenance').modal('show');  ShowSpinner(null, '', 'hide'); ",
    HttpMethod = "Post"

}, new { @id = "frmMaintModelAttributes" }))
{

    <input type="hidden" id="itemModel" name="ModelName" value="@modelName" />
    <input type="hidden" id="itemID" name="ItemID" />
}

@using (Ajax.BeginForm("DownloadAttributes", "AttributesAndOptions", null, new AjaxOptions
{
    UpdateTargetId = "maintenancediv",
    InsertionMode = InsertionMode.Replace,
    OnComplete = "SetUpTable('#tblDisplay');ShowSpinner(null, '', 'hide'); ",
    HttpMethod = "Post"

}, new { @id = "frmDownloadAttributes" }))
{

    <input type="hidden" id="optionModel" name="ModelName" value="@modelName" />
    <input type="hidden" id="optionCompany" name="CompanySite" value="@companySite" />

}

System.InvalidOperationException: 'The parameter conversion from type 'System.String' to type 'System.Boolean' failed. See the inner exception for more information.'

This is the error message: 		"-1 is not a valid value for Boolean."