blazor-devexpress-dot-blazor-dot-dxgridcolumn-c5bd9d20.md
Specifies column width in CSS units.
Namespace : DevExpress.Blazor
Assembly : DevExpress.Blazor.v25.2.dll
NuGet Package : DevExpress.Blazor
[DefaultValue(null)]
[Parameter]
public string Width { get; set; }
| Type | Default | Description |
|---|---|---|
| String | null |
The column’s width.
|
You can specify the Width property in any relative or absolute units that your browser supports.
Note
If you set the Width in em units, the Grid component converts this value from em to pixels on page load. The Grid does not automatically update the Width value when the base em size changes at runtime (due to CSS rules or window resizing).
@inject WeatherForecastService ForecastService
<DxGrid Data="@Data">
<Columns>
<DxGridDataColumn FieldName="Date" DisplayFormat="D" />
<DxGridDataColumn FieldName="TemperatureC" Caption="@("Temp. (\x2103)")" Width="120px" />
<DxGridDataColumn FieldName="TemperatureF" Caption="@("Temp. (\x2109)")" Width="120px" />
<DxGridDataColumn FieldName="Forecast" />
<DxGridDataColumn FieldName="CloudCover" />
</Columns>
</DxGrid>
@code {
object Data { get; set; }
protected override void OnInitialized() {
Data = ForecastService.GetForecast();
}
}
using System;
public class WeatherForecast {
public DateTime Date { get; set; }
public int TemperatureC { get; set; }
public double TemperatureF => Math.Round((TemperatureC * 1.8 + 32), 2);
public string Forecast { get; set; }
public string CloudCover { get; set; }
public bool Precipitation { get; set; }
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
public class WeatherForecastService {
private List<WeatherForecast> Forecast { get; set; }
private static string[] CloudCover = new[] {
"Sunny", "Partly cloudy", "Cloudy", "Storm"
};
Tuple<int, string>[] ConditionsForForecast = new Tuple<int, string>[] {
Tuple.Create( 22 , "Hot"),
Tuple.Create( 13 , "Warm"),
Tuple.Create( 0 , "Cold"),
Tuple.Create( -10 , "Freezing")
};
public WeatherForecastService() {
Forecast = CreateForecast();
}
private List<WeatherForecast> CreateForecast() {
var rng = new Random();
DateTime startDate = DateTime.Now;
return Enumerable.Range(1, 15).Select(index => {
var temperatureC = rng.Next(-10, 30);
return new WeatherForecast {
Date = startDate.AddDays(index),
TemperatureC = temperatureC,
CloudCover = CloudCover[rng.Next(0, 4)],
Precipitation = Convert.ToBoolean(rng.Next(0, 2)),
Forecast = ConditionsForForecast.First(c => c.Item1 <= temperatureC).Item2
};
}).ToList();
}
public IEnumerable<WeatherForecast> GetForecast() {
return Forecast.ToArray();
}
// ...
}
// ...
builder.Services.AddSingleton<WeatherForecastService>();
If you do not specify a column’s Width property explicitly, its value is automatically calculated based on the Grid’s total width, other column widths, borders, and cell spacing. For additional information on how this algorithm works in different scenarios, refer to the following topic: Layout Specifics in Blazor Grid.
If there is not enough space to display all Grid columns, columns with unspecified widths can be collapsed. To prevent a column from collapsing, set its MinWidth property to a non-zero value.
See Also