Datagrid单元格中的文本格式

时间:2018-09-10 14:45:42

标签: .net wpf vb.net xaml

我正在尝试格式化datagrid数据单元中的数字,以使'1000000.52'看起来像:'1 000 000.52'

我试图寻找能够启用此类功能的属性,并且只能在 DataGridCell 类内找到 ContentStringFormat 属性。不幸的是,我尝试的方法不起作用:

<DataGrid  CanUserAddRows="False" Name="EGrid" Grid.Column="0" Grid.Row="1" Grid.ColumnSpan="2" ItemsSource="{Binding Path=Data, Mode=TwoWay, ElementName=ExportableGrid}">
        <DataGrid.CellStyle>
            <Style TargetType="DataGridCell">
                <Setter Property="ContentStringFormat" Value="## ### ###.00"/>
            </Style>
        </DataGrid.CellStyle>
    </DataGrid>

我该如何实现?非常感谢您的任何帮助。

2 个答案:

答案 0 :(得分:2)

我将创建一个自定义值转换器:

    Imports System.Globalization

Public Class DecimalFormatConverter
    Implements IValueConverter

    Public Function IValueConverter_Convert(value As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IValueConverter.Convert
        Dim decimalVal As Decimal = Nothing

        If value IsNot Nothing AndAlso parameter IsNot Nothing AndAlso Decimal.TryParse(value.ToString(), decimalVal) Then
            Return decimalVal.ToString(parameter.ToString())
        End If

        Return value
    End Function

    Public Function IValueConverter_ConvertBack(value As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IValueConverter.ConvertBack
        Throw New NotImplementedException
    End Function

End Class

要在xaml中使用它,

<Window x:Class="MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp6VB"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.DataContext>
        <local:ViewModel />
    </Window.DataContext>
    <Grid>
        <Grid.Resources>
            <local:DecimalFormatConverter x:Key="DecimalFormatConverter" />
        </Grid.Resources>
        <DataGrid  CanUserAddRows="False" x:Name="EGrid" Grid.Column="0" ItemsSource="{Binding Nums}" >
            <DataGrid.Columns>
                <DataGridTemplateColumn Header="Number">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding Converter={StaticResource DecimalFormatConverter}, ConverterParameter='## ### ###.00'}" />
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
            </DataGrid.Columns>
        </DataGrid>
    </Grid>
</Window>

输出:

enter image description here

答案 1 :(得分:0)

您需要将其转换为字符串,将其拆分并在需要的地方添加空格。

我对您的问题进行了硬编码。 如果您希望代码段使用不同的数字,建议您使用相同的逻辑并在数字长度上创建一个Select/Case

这是解决您的问题的代码:

    Dim number As Double = 1000000.52
    Dim str() As String = Convert.ToString(number).Split(",")
    str(0) = "" & _
        str(0).Substring(0, 1) & _
        " " & str(0).Substring(1, 3) & _
        " " & str(0).Substring(4, 3) & _
        "." & str(1)