列の表示/非表示

The FlexGrid control enables users to make specific grid columns visible or hidden by setting IsVisible property of the GridColumn class to true or false.

For example, while analyzing the weather report using FlexGrid, you are willing to view the daily summary at first instance. Additional details, such as temperature for each day, you want to appear only when desired.

The GIF below depicts this scenario, where on button click you can make the temperature hidden and visible by clicking on a checkbox.

Show and hide columns

The following code example demonstrates how to implement show or hide column in FlexGrid.

Razor	コードのコピー
@page "/columnvisibility" @using BlazorIntro.Data @using C1.Blazor.Core @using C1.Blazor.Input @using C1.Blazor.Grid @inject WeatherForecastService ForecastService <h1>Hide/Show Columns</h1> <p> Toggle CheckBox to change the Columns Visibility <br /> <label for="date">Date</label>  <input id="date" type="checkbox" @bind="isDateVisible" /> <label for="tempC">Temp C</label>  <input id="tempC" type="checkbox" @bind="isTempCVisible" /> <label for="tempF">Temp F</label>  <input id="tempF" type="checkbox" @bind="isTempFVisible" /> </p> <FlexGrid @ref="grid" AutoGenerateColumns="false" ItemsSource="forecasts"> <FlexGridColumns> <GridColumn Header="Date" Binding="Date" IsVisible="@isDateVisible" Format="d"></GridColumn> <GridColumn Header="Temp C" Binding="TemperatureC" IsVisible="@isTempCVisible"></GridColumn> <GridColumn Header="Temp F" Binding="TemperatureF" IsVisible="@isTempFVisible"></GridColumn> <GridColumn Header="Summary" Binding="Summary" ></GridColumn> </FlexGridColumns> </FlexGrid> @code { WeatherForecast[] forecasts; protected override async Task OnInitializedAsync() { forecasts = await ForecastService.GetForecastAsync(DateTime.Now); FlexGrid _grid = new FlexGrid(); } public object dateCheck; public bool isDateVisible { get; set; } = true; public bool isTempCVisible { get; set; }= true; public bool isTempFVisible { get; set; }= true; public object grid; }

Razor

コードのコピー

@page "/columnvisibility"
@using BlazorIntro.Data
@using C1.Blazor.Core
@using C1.Blazor.Input
@using C1.Blazor.Grid
@inject WeatherForecastService ForecastService
<h1>Hide/Show Columns</h1>


<p>
    Toggle CheckBox to change the Columns Visibility <br />
    <label for="date">Date</label> &nbsp;<input id="date" type="checkbox" @bind="isDateVisible" />
    <label for="tempC">Temp C</label> &nbsp;<input id="tempC" type="checkbox" @bind="isTempCVisible" />
    <label for="tempF">Temp F</label> &nbsp;<input id="tempF" type="checkbox" @bind="isTempFVisible" />
</p>

<FlexGrid @ref="grid" AutoGenerateColumns="false" ItemsSource="forecasts">
    <FlexGridColumns>
        <GridColumn Header="Date" Binding="Date" IsVisible="@isDateVisible" Format="d"></GridColumn>
        <GridColumn Header="Temp C" Binding="TemperatureC" IsVisible="@isTempCVisible"></GridColumn>
        <GridColumn Header="Temp F" Binding="TemperatureF" IsVisible="@isTempFVisible"></GridColumn>
        <GridColumn Header="Summary" Binding="Summary" ></GridColumn>
    </FlexGridColumns>
</FlexGrid>
@code {
    WeatherForecast[] forecasts;

    protected override async Task OnInitializedAsync()
    {
        forecasts = await ForecastService.GetForecastAsync(DateTime.Now);
        FlexGrid _grid = new FlexGrid();
    }
    public object dateCheck;
    public bool isDateVisible { get; set; } = true;
    public bool isTempCVisible { get; set; }= true;
    public bool isTempFVisible { get; set; }= true;

    public object grid;

    
}