Column Spanning in ASP.NET Core Grid

26 Feb 202524 minutes to read

The column spanning feature in the Syncfusion Grid allows you to merge adjacent cells horizontally, creating a visually appealing and informative layout. By defining the colSpan attribute in the queryCellInfo event, you can easily span cells and customize the appearance of the Grid.

In the following demo, Employee Davolio doing analysis from 9.00 AM to 10.00 AM, so that cells have spanned.

CSHTML
Columnspanning.cs
<ejs-grid id="Grid" dataSource="@ViewBag.DataSource" queryCellInfo="QueryCellEvent" height="auto" width="auto" allowTextWrap="true" gridLines="Both">
        <e-grid-columns>
            <e-grid-column field="EmployeeID" headerText="Employee ID" isPrimaryKey="true" textAlign="Right" width="150"></e-grid-column>
            <e-grid-column field="EmployeeName" headerText="Employee Name" width="200"></e-grid-column>
            <e-grid-column field="Time9AM" headerText="9.00 AM" width="120"></e-grid-column>
            <e-grid-column field="Time930AM" headerText="9.30 AM" width="120"></e-grid-column>
            <e-grid-column field="Time10AM" headerText="10.00 AM" width="120"></e-grid-column>
            <e-grid-column field="Time1030AM" headerText="10.30 AM" width="120"></e-grid-column>
            <e-grid-column field="Time11AM" headerText="11.00 AM" width="120"></e-grid-column>
            <e-grid-column field="Time1130AM" headerText="11.30 AM" width="120"></e-grid-column>
            <e-grid-column field="Time12PM" headerText="12.00 AM" width="120"></e-grid-column>
            <e-grid-column field="Time1230PM" headerText="12.30 AM" width="120"></e-grid-column>
            <e-grid-column field="Time230PM" headerText="2.30 PM" width="120"></e-grid-column>
            <e-grid-column field="Time3PM" headerText="3.00 PM" width="120"></e-grid-column>
            <e-grid-column field="Time330PM" headerText="3.30 PM" width="120"></e-grid-column>
            <e-grid-column field="Time4PM" headerText="4.00 PM" width="120"></e-grid-column>
            <e-grid-column field="Time430PM" headerText="4.30 PM" width="120"></e-grid-column>
            <e-grid-column field="Time5PM" headerText="5.00 PM" width="120"></e-grid-column>
        </e-grid-columns>
    </ejs-grid>
    <script>
        function QueryCellEvent(args) {
            var data = args.data;
            switch (data.EmployeeID) {
                case 10001:
                    if (args.column.field === 'Time9AM' || args.column.field === 'Time230PM' || args.column.field === 'Time430PM') {
                        args.colSpan = 2;
                    } else if (args.column.field === 'Time11AM') {
                        args.colSpan = 3;
                    }
                    break;
                case 10002:
                    if (args.column.field === 'Time930AM' || args.column.field === 'Time230PM' || args.column.field === 'Time430PM') {
                        args.colSpan = 3;
                    } else if (args.column.field === 'Time11AM') {
                        args.colSpan = 4;
                    }
                    break;
                case 10003:
                    if (args.column.field === 'Time9AM' || args.column.field === 'Time1130AM') {
                        args.colSpan = 3;
                    } else if (args.column.field === 'Time1030AM' || args.column.field === 'Time330PM' || args.column.field === 'Time430PM' || args.column.field === 'Time230PM') {
                        args.colSpan = 2;
                    }
                    break;
                case 10004:
                    if (args.column.field === 'Time9AM') {
                        args.colSpan = 3;
                    } else if (args.column.field === 'Time11AM') {
                        args.colSpan = 4;
                    } else if (args.column.field === 'Time4PM' || args.column.field === 'Time230PM') {
                        args.colSpan = 2;
                    }
                    break;
                case 10005:
                    if (args.column.field === 'Time9AM') {
                        args.colSpan = 4;
                    } else if (args.column.field === 'Time1130AM') {
                        args.colSpan = 3;
                    } else if (args.column.field === 'Time330PM' || args.column.field === 'Time430PM' || args.column.field === 'Time230PM') {
                        args.colSpan = 2;
                    }
                    break;
                case 10006:
                    if (args.column.field === 'Time9AM' || args.column.field === 'Time430PM' || args.column.field === 'Time230PM' || args.column.field === 'Time330PM') {
                        args.colSpan = 2;
                    } else if (args.column.field === 'Time10AM' || args.column.field === 'Time1130AM') {
                        args.colSpan = 3;
                    }
                    break;
                case 10007:
                    if (args.column.field === 'Time9AM' || args.column.field === 'Time3PM' || args.column.field === 'Time1030AM') {
                        args.colSpan = 2;
                    } else if (args.column.field === 'Time1130AM' || args.column.field === 'Time4PM') {
                        args.colSpan = 3;
                    }
                    break;
                case 10008:
                    if (args.column.field === 'Time9AM' || args.column.field === 'Time1030AM' || args.column.field === 'Time230AM') {
                        args.colSpan = 3;
                    } else if (args.column.field === 'Time4AM') {
                        args.colSpan = 2;
                    }
                    break;
                case 10009:
                    if (args.column.field === 'Time9AM' || args.column.field === 'Time1130AM') {
                        args.colSpan = 3;
                    } else if (args.column.field === 'Time430AM' || args.column.field === 'Time230AM') {
                        args.colSpan = 2;
                    }
                    break;
                case 100010:
                    if (args.column.field === 'Time9AM' || args.column.field === 'Time230AM' ||
                        args.column.field === 'Time4AM' || args.column.field === 'Time1130AM') {
                        args.colSpan = 3;
                    } else if (args.column.field === 'Time1030AM') {
                        args.colSpan = 2;
                    }
                    break;
                        }
                    }
</script>
public IActionResult Index()
{
    ViewBag.DataSource = Merge.GetAllRecords()
    return View();
}

Column Spanning

Change the border color while column spanning

You can change the border color for the spanned cells by the using queryCellInfo event. This event triggers before the cell element is appended to the Grid element.

CSHTML
Columnspanning.cs
<ejs-grid id="Grid" dataSource="@ViewBag.DataSource" queryCellInfo="QueryCellEvent" height="auto" width="auto" allowTextWrap="true" gridLines="Both">
        <e-grid-columns>
            <e-grid-column field="EmployeeID" headerText="Employee ID" isPrimaryKey="true" textAlign="Right" width="150"></e-grid-column>
            <e-grid-column field="EmployeeName" headerText="Employee Name" width="200"></e-grid-column>
            <e-grid-column field="Time9AM" headerText="9.00 AM" width="120"></e-grid-column>
            <e-grid-column field="Time930AM" headerText="9.30 AM" width="120"></e-grid-column>
            <e-grid-column field="Time10AM" headerText="10.00 AM" width="120"></e-grid-column>
            <e-grid-column field="Time1030AM" headerText="10.30 AM" width="120"></e-grid-column>
            <e-grid-column field="Time11AM" headerText="11.00 AM" width="120"></e-grid-column>
            <e-grid-column field="Time1130AM" headerText="11.30 AM" width="120"></e-grid-column>
            <e-grid-column field="Time12PM" headerText="12.00 AM" width="120"></e-grid-column>
            <e-grid-column field="Time1230PM" headerText="12.30 AM" width="120"></e-grid-column>
            <e-grid-column field="Time230PM" headerText="2.30 PM" width="120"></e-grid-column>
            <e-grid-column field="Time3PM" headerText="3.00 PM" width="120"></e-grid-column>
            <e-grid-column field="Time330PM" headerText="3.30 PM" width="120"></e-grid-column>
            <e-grid-column field="Time4PM" headerText="4.00 PM" width="120"></e-grid-column>
            <e-grid-column field="Time430PM" headerText="4.30 PM" width="120"></e-grid-column>
            <e-grid-column field="Time5PM" headerText="5.00 PM" width="120"></e-grid-column>
        </e-grid-columns>
    </ejs-grid>
    <script>
    function QueryCellEvent(args) {
        var data = args.data;
        switch (data.EmployeeID) {
            case 10001:
                if (args.column.field === 'Time9AM' || args.column.field === 'Time230PM' || args.column.field === 'Time430PM') {
                    args.colSpan = 2;
                } else if (args.column.field === 'Time11AM') {
                    args.colSpan = 3;
                }
                break;
            case 10002:
                if (args.column.field === 'Time930AM' || args.column.field === 'Time230PM' || args.column.field === 'Time430PM') {
                    args.colSpan = 3;
                } else if (args.column.field === 'Time11AM') {
                    args.colSpan = 4;
                }
                break;
            case 10003:
                if (args.column.field === 'Time9AM' || args.column.field === 'Time1130AM') {
                    args.colSpan = 3;
                } else if (args.column.field === 'Time1030AM' || args.column.field === 'Time330PM' || args.column.field === 'Time430PM' || args.column.field === 'Time230PM') {
                    args.colSpan = 2;
                }
                break;
            case 10004:
                if (args.column.field === 'Time9AM') {
                    args.colSpan = 3;
                } else if (args.column.field === 'Time11AM') {
                    args.colSpan = 4;
                } else if (args.column.field === 'Time4PM' || args.column.field === 'Time230PM') {
                    args.colSpan = 2;
                }
                break;
            case 10005:
                if (args.column.field === 'Time9AM') {
                    args.colSpan = 4;
                } else if (args.column.field === 'Time1130AM') {
                    args.colSpan = 3;
                } else if (args.column.field === 'Time330PM' || args.column.field === 'Time430PM' || args.column.field === 'Time230PM') {
                    args.colSpan = 2;
                }
                break;
            case 10006:
                if (args.column.field === 'Time9AM' || args.column.field === 'Time430PM' || args.column.field === 'Time230PM' || args.column.field === 'Time330PM') {
                    args.colSpan = 2;
                } else if (args.column.field === 'Time10AM' || args.column.field === 'Time1130AM') {
                    args.colSpan = 3;
                }
                break;
            case 10007:
                if (args.column.field === 'Time9AM' || args.column.field === 'Time3PM' || args.column.field === 'Time1030AM') {
                    args.colSpan = 2;
                } else if (args.column.field === 'Time1130AM' || args.column.field === 'Time4PM') {
                    args.colSpan = 3;
                }
                break;
            case 10008:
                if (args.column.field === 'Time9AM' || args.column.field === 'Time1030AM' || args.column.field === 'Time230PM') {
                    args.colSpan = 3;
                } else if (args.column.field === 'Time4PM') {
                    args.colSpan = 2;
                }
                break;
            default:
                extendQueryCellEvent(args, data.EmployeeID);
        }

        if (args.colSpan > 1) {
            args.cell.style.border = '1px solid red';
        }
    }

    function extendQueryCellEvent(args, value) {
        switch (value) {
            case 10009:
                if (args.column.field === 'Time9AM' || args.column.field === 'Time1130AM') {
                    args.colSpan = 3;
                } else if (args.column.field === 'Time430PM' || args.column.field === 'Time230PM') {
                    args.colSpan = 2;
                }
                break;
            case 10010:
                if (args.column.field === 'Time9AM' || args.column.field === 'Time230PM' || args.column.field === 'Time4PM' || args.column.field === 'Time1130AM') {
                    args.colSpan = 3;
                } else if (args.column.field === 'Time1030AM') {
                    args.colSpan = 2;
                }
                break;
        }
    }
</script>
public IActionResult Index()
{
    ViewBag.DataSource = Merge.GetAllRecords()
    return View();
}

Column Spanning BorderColor

Limitations

The updateCell method does not support column spanning.
Column spanning is not compatible with the following features:
1. Virtual scrolling
2. Infinite scrolling
3. Grouping
4. Autofill