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Conditional Row Formatting

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Michael
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Michael asked on 10 May 2020, 10:02 PM

Marin:

I need to format Grid content on a row by row basis and using the RowTemplate am able to get close to what I want but it's breaking the Select and Hover behavior.

What is the best way to do this?  

 

@page "/"
@page "/formatting"
 
<style>
    .mygrid-formatting th.k-header {
        padding: 5px;
    }
 
    .mygrid-formatting .k-master-row td {
        padding: 2px 4px;
        border-bottom: 1px solid rgba(33, 37, 41, 0.15);
        line-height: 1.25rem;
        vertical-align: @_verticalAlignment;
    }
 
    .mygrid-formatting .k-grid-table .k-master-row {
        background-color: @_backGroundColor;
    }
 
        .mygrid-formatting .k-grid-table .k-master-row:hover {
            background-color: rgba(220, 238, 239, 0.50);
        }
 
        .mygrid-formatting .k-grid-table .k-master-row.k-alt {
            background-color: @_backGroundColor;
        }
 
            .mygrid-formatting .k-grid-table .k-master-row.k-alt:hover {
                background-color: rgba(220, 238, 239, 0.50);
            }
</style>
 
 
@if (showForm)
{
    <TelerikGrid Data="@GridData"
                 Class="mygrid-formatting"
                 Height="600px"
                 SelectionMode="GridSelectionMode.Single"
                 Pageable="true"
                 PageSize="30"
                 RowHeight="30"
                 Sortable="true">
 
         
        <RowTemplate Context="sample">
            <td style="@RowStyle(sample.Id)">@sample.Id</td>
            <td style="@RowStyle(sample.Id)">@sample.Name</td>
            <td style="@RowStyle(sample.Id)">@sample.LastName</td>
            <td style="@RowStyle(sample.Id)">@sample.HireDate.ToShortDateString()</td>
        </RowTemplate>
 
        <GridColumns>
            <GridColumn Field="@(nameof(SampleData.Id))" Title="ID" />
            <GridColumn Field="@(nameof(SampleData.Name))" Title="Name" />
            <GridColumn Field="@(nameof(SampleData.LastName))" Title="Last Name" />
            <GridColumn Field="@(nameof(SampleData.HireDate))" Title="Hired" />
        </GridColumns>
    </TelerikGrid>
}
 
 
@code {
    public List<SampleData> GridData { get; set; }
    bool showForm = false;
    string _verticalAlignment = "Center";
    string _backGroundColor = "White";
 
 
    protected override async Task OnInitializedAsync()
    {
        GridData = await GetData();
        showForm = true;
    }
 
    private string RowStyle(int id)
    {
        string style = string.Empty;
 
        if (id <= 15) style = "color: red; background-color: white;";
        else if (id <= 30) style = "color: DarkBlue; background-color: AliceBlue;";
        else if (id <= 45) style = "color: green; background-color: Khaki;";
        else style = "color: Indigo; background-color: Lavender;";
 
        return style;
    }
 
 
    private async Task<List<SampleData>> GetData()
    {
        return Enumerable.Range(1, 100).Select(x => new SampleData
        {
            Id = x,
            Name = $"name {x}",
            LastName = $"Surname {x}",
            HireDate = DateTime.Now.Date.AddDays(-x)
        }).ToList();
    }
 
    public class SampleData
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string LastName { get; set; }
        public DateTime HireDate { get; set; }
    }
 
}

3 Answers, 1 is accepted

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Michael
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answered on 13 May 2020, 06:23 AM

Marin:

Sorry to bug you, but could you offer some guidance on my above question?

Mike

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Svetoslav Dimitrov
Telerik team
answered on 13 May 2020, 09:04 AM

Hello Michael,

There is an open Feature Request on our Feedback Portal regarding the conditional formatting of a Grid Row. You can see it from here: https://feedback.telerik.com/blazor/1456957-conditional-row-class-for-styling. I have given a Vote on your behalf to raise its popularity. You can Follow it for email notifications on status updates. Also, in the public thread you can express your ideas on the implementation of this feature. In this thread there is a link to a Knowledge Base article that has a workaround solution.

As attached file, you can see a demo project that has Single Item Selection and Hover, when working with RowTemplate (note: selection of items with CheckBox column is not available in the RowTemplate, more information here: https://docs.telerik.com/blazor-ui/components/grid/templates#row-template). The main difference between our two projects is that i have commented out the CSS rules which seem to break the selection.

 

Regards,
Svetoslav Dimitrov
Progress Telerik

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Michael
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answered on 14 May 2020, 12:17 AM
Thanks
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Svetoslav Dimitrov
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