Questions on Kendo UI for jQuery Forum

0 answers

152 views

Hi Team,

how can I connect a label to color-picker using "for" attribute? currently even though its linked, screen reader(accessibility) does not read the label for color-picker.

appreciate any help.

ColorPicker

asked on 27 Sep 2021

1 answer

535 views

Prevent default tab event in input of cell in edit mode (Kendo Grid) also prevent update the data has just input?

I have a grid use Kendo Grid. When i custom edit event and add event to input in edit mode like this

edit: function (e) {
if (e.container[0]) {
var cell = e.container[0]
$rootScope.rowToFocus = angular.element(cell).closest('tr').index();
$rootScope.colToFocus = e.sender.cellIndex(angular.element(cell).closest('td'));
if ($rootScope.rowToFocus != 0 || $rootScope.colToFocus != 0) {
$rootScope.gridToFocus = e.sender;
e.container.find("input").on("keydown", function (ev) {
if (ev.which == 9 || ev.which == 13) {
$rootScope.isKeyboard = true;

ev.preventDefault();

}
})
}
else {
$rootScope.rowToFocus = undefined;
$rootScope.colToFocus = undefined;
}
}
},

So i prevented default of tab event but aslo prevent update the data i input in this... Please help me a solution to prevent tab event in my input and still raise the update data event when i leave this cell.

Grid

answered on 27 Sep 2021

1 answer

77 views

detail row opens off screen

Hello, I have detail row that appears perfectly, except when the master row is at the bottom of the container (or screen). The detail row still opens, but requires scrolling to see it.

How can I auto scroll far enough to get the detail row to show, when the detail row is outside of the bounding container or screen?

Thanks.

Grid

answered on 24 Sep 2021

2 answers

906 views

"multi" multi-select when ctrl key pressed

We have a use case where users are choosing which values they'd like to concatenate together, from a list of options.

At times, they may need to concatenate the same thing more than once

Kendo's multiselect seems like the best component for this

... but I'm getting stuck on customizing it's behavior to allow the same value to repeat, when CTRL + CLICK takes place.

click - should add/remove choices per the usual
CTRL + CLICK should push the choice onto the multiselect, regardless if the multiselect already has that choice
- Observe whether or not CTRL has been engaged
- rewrite normal deselect handler to honor the required CTRL + CLICK behavior

Things are very close to working, but am unable to get the MultiSelect to dynamically update its value correctly, using Kendo's value() method.

Offending line of code attached in screenshot

and sample Dojo here -> https://dojo.telerik.com/ELeligEY/14

Am I missing something w/ Kendo's API? Should I be approaching this with a different Kendo component?

UPDATE: from scrounging the forums, it appears an underlying architectural design means MultiSelect inherits from something that does not allow repeating values? https://www.telerik.com/forums/allow-duplicate-items

Help with this feature request would be much appreciated.
https://feedback.telerik.com/kendo-jquery-ui/1359475-allow-select-items-in-multiselect-multiple-times

Or guidance on how one might customize the Kendo Multiselect to achieve this kind of use case.

Help much appreciated.

MultiSelect

answered on 24 Sep 2021

0 answers

68 views

ContextMenu on TreeList after first display shows menu regardless of click location

I have a TreeList and a connected ContextMenu. The context menu shows correctly the first time only when clicking on a TreeList row. After that however, no matter where I right-click on the page, the context menu is displayed.

@(Html.Kendo().ContextMenu()
    .Name("orgtreemenu")
    .Target("#OrganizationTreeMaintenance")
    .Orientation(ContextMenuOrientation.Vertical)
    .Filter(".k-grid-content table tbody tr[role='row']")
    .Events(e => e
        .Open("orgContextMenuOpen")
        .Select("orgTreemenuSelect")
    )
    .Items(items =>
    {
        items.Add()
            .Text("Add Organization")
            .HtmlAttributes(new { @id = "addorgaction" })
            .Enabled(true);
        items.Add()
            .Text("Edit Name")
            .HtmlAttributes(new { @id = "editorgnameaction" })
            .Enabled(true);
        items.Add()
            .Text("Delete Organization")
            .HtmlAttributes(new { @id = "deleteorgaction" })
            .Enabled(true);

        items.Add()
            .Text("Move Organization")
            .HtmlAttributes(new { @id = "moveorgaction" })
            .Enabled(false);
    }))

@(Html.Kendo().TreeList<UserStatViewModel>()
    .Name("OrganizationTreeMaintenance")
    .Columns(columns =>
    {
        columns.Add().Field(e => e.OrganizationName).Width(300);
        columns.Add().Field(e => e.OrganizationId).Hidden(true);
        columns.Add().Field(e => e.TotalUserCount).Title("Users");
        columns.Add().Field(e => e.TotalDeviceCount).Title("Devices");
        columns.Add().Field(e => e.LicensedUserCount).Title("Licenses");
    })
    .Sortable()
    .HtmlAttributes(new { style = "height:500px;" })
    .Events(e => e
        .DataBound("onDataBoundLicenseTree"))
    .DataSource(dataSource => dataSource
        .Read(read => read.Action("GetOrgLicenseDetails", "home"))
        .ServerOperation(false)
        .Model(m =>
        {
            m.Id(f => f.OrganizationId);
            m.ParentId(f => f.ParentOrgId).DefaultValue(0);
            //           m.Expanded(true);
            m.Field(f => f.OrganizationName);
            m.Field(f => f.TotalDeviceCount);
            m.Field(f => f.ParentOrgId);
        })
    ))

I have tried modifying the Filter on the context menu to no avail. Hoping someone can see something obvious.

Thanks and regards,

Eric Katz

Menu

TreeList

asked on 23 Sep 2021

1 answer

510 views

How to add a checkBox (with select all in header) to the the dynamically generated grid

Hi team,

I was able to generate the model and columns and grid dynamically using the articles.

Adding to this I want to add a column to the front of the grid with a checkbox against each row.

I need to add a master checkbox in that column, which can select all of the rows if grid.

How do I achieve this? I tried, but I am not able to have the column visible.

Please help!.

Thanks

Data Source

Grid

answered on 23 Sep 2021

1 answer

470 views

saveChanges() and manual sync() trigger duplicate destroy call

Using a "destroy" command in the datagrid and "autoSync: false", it somehow calls the "destroy" twice. Any idea if I'm doing something wrong? When I set autoSync to true, it only fires once.

The following config gives me:

destroy
destroy
success
success

destroy: (options) => {
    console.log("destroy");
    $.ajax({
        url: $discountProductsGrid.data("delete-url"),
        dataType: "json",
        contentType: 'application/json',
        type: "POST",
        data: kendo.stringify({
            discountNumber: options.data.discountNumber,
            productNumber: options.data.productNumber,
            productColorId: options.data.productColorId,
            productSizeId: options.data.productSizeId,
        }),
        success: (result) => {
            console.log("success");
            options.success(result);
        },
        error: (result) => {
            console.log("error");
            options.error(result);
        },
    });
},

I do have sorting, filtering, and paging on the server, though I don't expect that to matter.

My model isn't very complicated and I've verified that there are no double IDs. At first I was thinking that perhaps the response body was incorrect, but that shouldn't be a problem because it fires the same destroy twice and doesn't wait for the first destroy to finish.

kendo.data.Model.define({
    id: "discountLineId",
    fields: {
        discountLineId: {type: "string"},
        discountNumber: {type: "number"},
        productSupplierName: {type: "string"},
        productCategoryDescription: {type: "string"},
        productNumber: {type: "number"},
        productId: {type: "string"},
        productDescription: {type: "string"},
        productColorId: {type: "string"},
        productColorDescription: {type: "string"},
        productSizeId: {type: "string", nullable: true},
        productSizeDescription: {type: "string", nullable: true},
        discountSalesPrice: {type: "number"},
        productSalesPrice: {type: "number"},
        discountSalesPricePercentage: {type: "number"},
    }
})

The method I use for saving:

$discountLineGrid.on("click", ".k-grid-save-changes", (e) => {
    e.preventDefault();

    discountLineGrid.saveChanges();

    // sync also firesd 
    // discountLineDataSource.sync();
});

I've verified inside the data source (in the range part), that the data is only 19 and that only the one record is that has to be deleted is still in the prestine data or whatever that is.

Data Source

Grid

answered on 23 Sep 2021

1 answer

1.2K+ views

Manipulating grid columns during export to excel and pdf

I have a Kendo grid that uses Export-to-excel and Export-to-pdf.

One particular column consists of data with padded zeros (so that column sorting works). Then, this column uses a template to display the data without the padded zeros (a business requirement). This is perfect for the grid.

Now, the export functions do not export the template, they export the underlying data (this is documented in the Known Limitations). So my exports show the data with padded-zeros. But... I need to show the data without padded zeros. So I have been looking for a workaround.

Workaround attempt A)
I created two columns padded and non-padded. The idea was this:
Column i/ Data = padded; Grid view = non-padded; do not export.
Column ii/ Data = non-padded; Grid view = hidden; export.

However, this doesn't work for two reasons.
Column i/ columns: exportable: { pdf: false, excel: false } doesn't actually seem to work(!!!)
Column ii/ This isn't legal anyway. If you hide the data in the grid you can't export it anyway.

Workaround attempt B)
In the excelExport() function I did this:

excelExport: function (e) {
for (var j = 0; j < e.data.length; j++) {
e.data[j].padded_column = e.data[j].non-padded_column;
}
},

In the console this appears to work fine, that is I replace the value of the padded column with the data of the non-padded column. However, it makes no difference to what appears on the spreadsheet. My guess is that this is because the spreadsheet has already been generated before excelExport() modifies the data.

So, I need a new approach. Can anybody help?

ADDITIONAL INFORMATION

For further reference, here is the code for the column:

columns: [{
field: 'sys_id_sorted',
title: 'File ref',
hidden: false,
template: function (dataItem) {
var ctyClass = '';
switch (dataItem.cty_id) {
case '1':
ctyClass = 'CHAP';
break;
case '2':
ctyClass = 'EU-PILOT';
break;
case '3':
ctyClass = 'NIF';
break;
case '4':
ctyClass = 'OTHER';
break;
default:
ctyClass = 'default';
break;
}
return '<div class="label label-' + ctyClass + ' origin">' + dataItem.sys_id + '</div>';
}
},

'sys_id_sorted' is the field that has padded zeros.
'dataItem.sys_id' is the field with no padded zeros.

Grid

answered on 23 Sep 2021

1 answer

4.0K+ views

Grid with inline editing: Uncaught TypeError: Cannot read properties of undefined (reading 'data')

I have implemented a grid with inline editing, which has a dropdown in one of its columns. The problem is, everytime I am trying to save a change I made, I get the following TypeError and I think it is the dropdown which causes this:

kendo.all.js:6412 Uncaught TypeError: Cannot read properties of undefined (reading 'data')
    at init.setup (VM13051 kendo.all.min.js:formatted:4953)
    at init.update (VM13051 kendo.all.min.js:formatted:4946)
    at Object.<anonymous> (VM13051 kendo.all.min.js:formatted:5531)
    at Function.Deferred (VM12816 AJS097.P:528)
    at init._promise (VM13051 kendo.all.min.js:formatted:5526)
    at init._send (VM13051 kendo.all.min.js:formatted:5557)
    at init.sync (VM13051 kendo.all.min.js:formatted:5341)
    at init.saveRow (VM13051 kendo.all.min.js:formatted:48900)
    at init._editUpdateClick (VM13051 kendo.all.min.js:formatted:48689)
    at HTMLAnchorElement.proxy (VM12816 AJS097.P:65)

Here is the implementation of the grid (I tried to keep it as simple as I could, by removing anything that might be unnecessary for this problem):

jq(document).ready(function() {
    var copyBool = false
        grid_counter = 0; 
    
    jq("#inline_grid").kendoGrid({
        autoBind: true,
        dataSource: {
            transport: {
                read: {
                    url: "GetJsonData_Grid.p",
                    dataType: "json",
                    data:{ 
                        "function": "testfunction",
                        "element": "grid",
                        "param1": "testparam1",
                        "param2": "",
                        "param3": "",
                        "rowid": $("rowid").value
                    }                                           
                }
            },
            schema: {
                data:  "data",
                total: "recordsCount",
                model: {
                    id: "field1", 
                    fields: { 
                        field1:  { 
                                    type: "string", 
                                    validation: { 
                                        required: true,
                                        maxlength: "3", 
                                        field1validation: function(input) {
                                            var grid_length = jq("#inline_grid").data("kendoGrid").dataSource.data().length + 1; 

                                            if(input.is("[name='field1']") && input.val() == "0") {
                                                input.attr("data-field1validation-msg","the number must be greater than 0");
                                                returnfalse;
                                            } elseif(input.is("[name='field1']") && input.val() == "") {
                                                input.attr("data-field1validation-msg","the number must not be empty");
                                                returnfalse;
                                            } elseif(input.is("[name='field1']") && (input.val() < "0" || input.val() > "99999999")) {
                                                input.attr("data-field1validation-msg","the input is invalid");  
                                                input.val(grid_length);
                                                returnfalse;                                                           
                                            }
                                            
                                            returntrue;
                                        } 
                                    }
                                },
                        field2: { type: "string", validation: { required: false }},
                        field3: { type: "string", validation: { required: false }},
                        field4: { type: "string", validation: { required: false }},
                        field5: { type: "string", validation: { required: false }},
                        field6: { type: "string", validation: { required: false }}
                    }                                            
                }  
            },
            pageSize: 15
        },
        toolbar:    [
            { name: "create", text: "Add", iconClass: "" },  
        ],   
        dataBound: function(e) {
            if(grid_counter == 0) {
                this.select("tr:eq(0)");  
                grid_counter++;    
            }
        },
        selectable: true,
        change: function(e) {
            var selectedRows = this.select(),
                dataItem = this.dataItem(selectedRows[0]);
            ...                                                 
        },                                                       
        sortable: false,
        scrollable: {
            virtual: true
        },
        persistSelection: true,
        columns: [
            { field: "field1",  title: "nr",           width: "30px", attributes: {style: "text-align:left;"}, headerAttributes: {style: "text-align:left;"}, editor: textEditor },   
            { field: "field2",  title: "active",       width: "20px", attributes: {style: "text-align:left;"}, headerAttributes: {style: "text-align:left;"}, editor: cbEditor   },   
            { field: "field3",  title: "art",          width: "100px",attributes: {style: "text-align:left;"}, headerAttributes: {style: "text-align:left;"}, editor: ddlEditor  },    
            { field: "field4",  title: "description",  width: "100px",attributes: {style: "text-align:left;"}, headerAttributes: {style: "text-align:left;"}, editor: textEditor },    
            { field: "field5",  title: "comment",      width: "100px",attributes: {style: "text-align:left;"}, headerAttributes: {style: "text-align:left;"}, editor: textEditor },    
            { field: "field6",  title: "processed",    width: "60px", attributes: {style: "text-align:left;"}, headerAttributes: {style: "text-align:left;"}, editor: cbEditor   },    
            { command: [
                { name: "edit", 
                    text: { edit: " ", update: "Save", cancel: " "}
                },  
                { name: "copy", 
                    text: " ",
                    iconClass: "k-icon k-i-copy",
                    click: function(e) {
                      e.preventDefault();
                    
                      var data = this.dataItem(jq(e.target).closest("tr"));
                        
                      field1 = data.field1;
                      field2 = data.field2;
                      field3 = data.field3;
                      field4 = data.field4;
                      field5 = data.field5;
                      field6 = data.field6;
                    
                      copyBool = true;
                      
                      jq("#inline_grid").data("kendoGrid").addRow();
                    }
                },
                { name: "destroy", 
                    text: " ",
                    iconClass: "k-icon k-i-delete"
                },                                                                      
            ], title: "&nbsp;", width: "60px", attributes: {style: "text-align:right;"} }
        ],
        noRecords: true,
        pageable: {
            previousNext: false,   
            numeric: false,
            alwaysVisible: true,
            pageSizes: [5,10,15] 
        },
        editable: {
            mode: "inline",  
            createAt: "bottom"
        },
        edit: function(e) {
            var model = e.model,
                container = e.container,
                nummer = parseInt(jq("#inline_grid").data("kendoGrid")._data[jq("#inline_grid").data("kendoGrid")._data.length - 2].field1) + 1;

            jq("#inline_grid tbody").find("tr.k-state-selected").removeClass("k-state-selected k-state-selecting");  

            /* field1 */if(e.model.isNew() && !e.model.dirty) {
                e.container
                    .find("input[name=field1]")
                    .val(nummer)
                    .change();
            }                 

            if(copyBool) {
                e.model.set("field2", field2);
                e.model.set("field3", field3);
                e.model.set("field4", field4);
                e.model.set("field5", field5);
                e.model.set("field6", field6);
                
                copyBool = false;
            }   
            ...                            
        },
        save: function(e) {
            $("model").value = "test";
            $("nr").value = e.model.field1;
            $("active").value = e.model.field2;
            $("art").value  = e.model.field3;
            $("description").value = e.model.field4;
            $("comment").value = e.model.field5;
            $("processed").value = e.model.field6;

            ...
        },
        remove: function(e) {
            $("model").value = "test"; 
            $("nr").value = e.model.field1; 
            
            ...
        }
    });
    
    var inline_grid = jq("#inline_grid").data("kendoGrid");  

    function textEditor(container,options) {
        jq('<input data-value-update="input" type="text" class="k-textbox k-valid" id="' + options.field + '" name="' + options.field + '" maxlength="30" autocomplete="off" data-bind="value:' + options.field + '"/>')
            .appendTo(container);
    }
    
    function cbEditor(container,options) {
        jq('<input type="checkbox" class="k-checkbox" id="' + options.field + '" name="' + options.field + '" value="yes"/>')
            .appendTo(container);
    }
    
    function ddlEditor(container,options) {
        jq('<input id="ddl_' + options.field + '" data-text-field="field1" data-value-field="field1" data-bind="value:' + options.field + '"/>')
            .appendTo(container)
            .kendoDropDownList({
                dataTextField: "field1",
                dataValueField: "field1",
                autoBind: false,
                dataSource: {
                    transport: {
                        read: {
                            url: "GetJsonData_Grid.p",
                            data: {
                                "function": "testfunction",
                                "element": "ddl",
                                "param1": "testparam1"
                            }
                        },
                        dataType: "json"
                    },
                    schema:{
                        data: "data",
                        total: "recordsCount"
                    },
                    sort: {
                        field: "field1", dir: "asc"
                    }
                },
                optionLabel: "-- select --",  
                optionLabelTemplate:"<span style='color:gray;'>-- select --</span>",  
                filter: "startswith",
                filtering: function(e) {
                    var filterValue = e.filter != undefined ? e.filter.value : "";
                    e.preventDefault();
                    filtering("#ddl_" + options.field,filterValue,2);
                },
                headerTemplate: "<div> \
                                    <table> \
                                        <tr> \
                                            <td style='font-weight:bold;width:100px;'>Code</td> \
                                            <td style='font-weight:bold;width:200px;'>Description</td> \
                                        </tr> \
                                    </table> \
                                <div>",
                template:       "<div> \
                                    <table> \
                                        <tr> \
                                            <td style='width:100px;' nowrap>#= field1 #</td> \
                                            <td style='width:200px;' nowrap>#= field2 #</td> \
                                        </tr> \
                                    </table> \
                                <div>",
                autoWidth: true,
                change: function(e) {
                    ddl_value = this.value();
                    
                    // Tooltip 
                    e.sender.select(function (dataItem) {
                        if(dataItem.field1 == ddl_value) {
                            jq("[data-container-for=" + options.field + "] .k-widget.k-dropdown").prop("title", dataItem.field2);                                                
                            return (dataItem.field1 == ddl_value);
                        }
                    });                                         
                }
            });
    }; 
}); // jq(document).ready(function() {