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Kendo's Form element has an initialValue prop which I can assign an object to. Inputs will use their "name" field to bind to the initialValue object however I am having trouble getting this to work with DropDownLists. 

Do DropDownLists work with a form's initial value if indeed the props (data, dataItemKey, textField, and name) are all set. The value of the binded field should match the dataItemKey's field.

 

Thanks

Stefan
Telerik team
 answered on 24 Mar 2021
2 answers
302 views

FloatingLabel returns the k-state-empty class when value is 0. This is a bug as 0 is a valid value, likely due to a conditional on numericValue.

My temporary fix is editorValue={numericValue !== undefined && numericValue !== null ? 1 : 0}

You can see the bug in action if you set the numeric value to 0 in this example:  https://www.telerik.com/kendo-react-ui/components/inputs/floating-labels/

Thanks.

Krissy
Telerik team
 answered on 23 Mar 2021
5 answers
505 views

I've implemented a Kendo React Grid and Tooltip. I can filter the grid without issues, however the tooltip is not updating to match the filtered grid. The tooltip is showing the information for the item that was previously in the row before the grid was filtered. 

I can see that moving the cursor over the grid cell clears the tootip from the source <td title>some data</td>

Lines 01 to 23 show how my grid is implemented and lines 31 to 38 show my Tooltip component.

How can I get the cell tootip to respond to the filtering?

01.<Tooltip openDelay={100} position="bottom">
02.   <Grid
03.        data={process(this.state.gridData.map((item) => ({...item, selected: item["id"] == this.state.selectedID})  ), this.state.gridDataState)}
04.        {...this.state.gridDataState}
05.        onDataStateChange={this.handleGridDataStateChange}
06.        pageable={true}
07.        sortable={true}
08.        selectedField="selected">
09.         
10.        <Column
11.            field="id"
12.            title="id"
13.            filter={'text'}
14.            cell={Tooltip}
15.            columnMenu={ColumnMenu} />
16.        <Column
17.            field="name"
18.            title="name"
19.            filter={'text'}
20.            cell={Tooltip}
21.            columnMenu={ColumnMenu} />
22.    </Grid>
23.</Tooltip>
24. 
25.handleGridDataStateChange = (e) => {
26.    this.setState({gridDataState: e.data})
27.}
28. 
29. 
30. 
31.export const Tooltip = (props: GridCellProps) => {
32.    const {field} = props;
33.    return (
34.        <td title={props.dataItem[field]}>
35.            {props.dataItem[field]}
36.        </td>
37.    );
38.}
Stefan
Telerik team
 answered on 18 Mar 2021
3 answers
392 views

I was trying to trigger filter in GridColumMenuFilter using Enter instead of manual click. I have checked this post https://www.telerik.com/forums/using-enter-key-for-grid's-columnmenufilter but I can't make it work. I'm not sure what was tweaked on that code.

 

Thanks

-Josh

Stefan
Telerik team
 answered on 18 Mar 2021
5 answers
1.8K+ views

Hi There,

We are using the Kendo React Form library. Is it possible to reset a single field to the initial value that the form supplies? I see the way to reset the entire form, but we are looking to include a reset button next to each input field that would reset the field to it's initial value and also inform the form that it has not been modified.

Stefan
Telerik team
 answered on 17 Mar 2021
2 answers
185 views

We use a button in multiselect header to select several items.

This does not work in v4+ (with autoClose set to false). Any elements within do not get clicks registered it just onBlurs out and closes. This was introduced in 4.x somewhere as when I revert back to 3.x its not happening. 

 

https://stackblitz.com/edit/react-7vxshz?file=app/main.jsx

Tarjei
Top achievements
Rank 1
 answered on 12 Mar 2021
6 answers
645 views

Hi,

I am using a React Grid to display some data where one of the underlying fields is a collection of objects. At present we join this into a comma-separated string server-side, and use the standard GridColumnMenuCheckboxFilter implementation with a text filter type. However, the resulting list of items in the filter menu is just a distinct list of the combination of underlying object names which can be quite long and doesn't take into account each object. Consider the following dataset:

[
    {
        "ProductID": 1,
        "ProductName": "Product A",
        "Categories": [
            {
                "CategoryID": "1",
                "CategoryName": "Category A"
            }
        ]
    },
    {
        "ProductID": 2,
        "ProductName": "Product B",
        "Categories": [
            {
                "CategoryID": "1",
                "CategoryName": "Category A"
            },
            {
                "CategoryID": "2",
                "CategoryName": "Category B"
            }
        ]
    },
    {
        "ProductID": 3,
        "ProductName": "Product C",
        "Categories": [
            {
                "CategoryID": "1",
                "CategoryName": "Category A"
            },
            {
                "CategoryID": "2",
                "CategoryName": "Category B"
            },
            {
                "CategoryID": "3",
                "CategoryName": "Category C"
            }
        ]
    }
]

 

This would give us a Category column with three checkbox filter items: "Category A", "Category A, Category B" and "Category A, Category B, Category C" etc.

I would like to know if it's possible to generate a GridColumnMenuCheckboxFilter that contains the entire set of discrete categories from all product records such that selecting one category will return all product rows that have that category. Using the example above, the three checkbox filter items would be "Category A", "Category B" and "Category C". Selecting Category A would return all rows, selecting Category B would only return Product B and C, selecting Category C would only return Product C.

Assuming this is possible, would it also be possible to customise the sort behaviour?

Kind regards,

David

Stefan
Telerik team
 answered on 11 Mar 2021
2 answers
196 views

Hi all,

Was wondering if anyone could point me to an example of using the Kendo jQuery Map widget in a React application. I looked at the available list of controls available for Kendo UI for React and didn't see a native control for maps there.

Thank you!

Jennifer
Top achievements
Rank 1
 answered on 11 Mar 2021
1 answer
467 views

Hi,

It doesn't seem to be possible to clear the value of a KendoReact MaskedTextBox. This can be seen here: https://stackblitz.com/edit/react-xnkrec?file=app/main.jsx

Once you have set a value, it isn't possible to clear it. Deleting everything in the input sets the value to the full mask. This is different behaviour to the jQuery MaskedTextBox which clears the value if the raw value is empty.

Is this intended behaviour?

Kind regards,

David

Krissy
Telerik team
 answered on 11 Mar 2021
2 answers
421 views

Hi all,

I'm just starting out with my trial, so am very much a beginner, hope this isn't a daft question.

I'd like to be able to drag items from a TreeView into some ListBoxes and back out again. The idea is that drag onto list box adds the item to that list, drag from listbox to the treeview will remove the item from the list.

I have got TreeView -> ListBox working by catching the TreeView.onDragEnd event and using document.elementFromPoint() to work out where the item is being dropped. (Perhaps there is a better way to do this too?)

I can't figure out how to detect the drop of a ListBox item outside of the ListBoxes though. There is an onDrop event but it only fires if dropping on a ListBox. If I drag anywhere outside the ListBox I get the "can not drop here" mouse icon".

Is there a way to achieve this?

Thanks for any help!

Colin

Colin
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Rank 1
 answered on 10 Mar 2021
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