在更改从组合框中选择的报表后刷新数据时出现问题。在ViewModel本身中，数据会更改，但视图不会刷新。建议我做错了什么？或者我应该改进什么？
在开始时，数据加载良好，Map是彩色的，唯一的问题是改变报告，因此缺乏Map刷新。
这是我在xaml上看到的：
<UserControl x:Class="DB.UI.Dashboard.NFZ.Maps.Views.CountiesMapView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:DB.UI.Dashboard.NFZ.Maps.Views"
xmlns:syncfusion="clr-namespace:Syncfusion.UI.Xaml.Maps;assembly=Syncfusion.SfMaps.WPF"
xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
xmlns:viewModels="clr-namespace:DB.UI.Dashboard.NFZ.Maps.ViewModels"
mc:Ignorable="d"
d:DesignHeight="450"
d:DesignWidth="800"
Loaded="CountiesMapView_OnLoaded">
<UserControl.Resources>
<ResourceDictionary>
<viewModels:CountiesMapViewModel x:Key="Vm"/>
</ResourceDictionary>
</UserControl.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="4*" />
</Grid.ColumnDefinitions>
<Grid Grid.Column="0">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<materialDesign:Card Grid.Row="0"
Foreground="Black"
Padding="8"
Margin="10 10 10 10"
UniformCornerRadius="6"
Background="White">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBlock Grid.Row="0"
TextAlignment="Center"
HorizontalAlignment="Center"
Text="Wybierz Raport"
TextWrapping="Wrap"
FontWeight="Bold"
FontSize="18"
ToolTip="Podsumowanie danych dla Realizatora
 w wybranym okresie rozliczeniowym" />
<Separator Grid.Row="1"
Margin="5 0 5 10" />
<ComboBox Grid.Row="2"
x:Name="ReportTypeComboBox"
Margin="5 0 5 10"
ItemsSource="{Binding ReportType}"
SelectedItem="{Binding SelectedReport}"
MinWidth="100"
HorizontalAlignment="Stretch"
HorizontalContentAlignment="Center">
</ComboBox>
</Grid>
</materialDesign:Card>
</Grid>
<Grid Grid.Column="1">
<materialDesign:Card Foreground="Black"
Padding="8"
Margin="10 10 10 10"
UniformCornerRadius="6"
Background="White">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBlock Grid.Row="0"
TextAlignment="Center"
HorizontalAlignment="Center"
Text="Powiaty"
TextWrapping="Wrap"
FontWeight="Bold"
FontSize="18"
ToolTip="Podsumowanie danych dla Realizatora
 w wybranym okresie rozliczeniowym" />
<Separator Grid.Row="1"
Margin="5 0 5 10" />
<syncfusion:SfMap Grid.Row="2"
x:Name="map"
DataContext="{StaticResource Vm}">
<syncfusion:SfMap.Layers>
<syncfusion:ShapeFileLayer ItemsSource="{Binding Report}"
MapPopupVisibility="Visible"
ShapeIDPath="CountyId"
ShapeIDTableField="JPT_KOD_JE"
Uri="DB.UI.Resources.Maps.Powiaty.shp">
<syncfusion:ShapeFileLayer.ItemsTemplate>
<DataTemplate>
<Grid Background="Transparent">
<TextBlock Margin="5"
FontFamily="Segoe UI"
FontSize="12"
FontWeight="SemiBold"
Foreground="Black"
Opacity="1"
Text="{Binding Data.DataValue}" />
</Grid>
</DataTemplate>
</syncfusion:ShapeFileLayer.ItemsTemplate>
<syncfusion:ShapeFileLayer.ShapeSettings>
<syncfusion:ShapeSetting ShapeColorValuePath="DataValue"
ShapeStrokeThickness="1"
ShapeValuePath="DataValue">
<syncfusion:ShapeSetting.FillSetting>
<syncfusion:ShapeFillSetting AutoFillColors="False">
<syncfusion:ShapeFillSetting.ColorMappings>
<syncfusion:RangeColorMapping To="0"
From="0"
Color="Transparent" />
<syncfusion:RangeColorMapping To="{Binding ToRange[0], Source={StaticResource Vm}}"
From="{Binding FromRange[0], Source={StaticResource Vm}}"
Color="#ddb0b7" />
<syncfusion:RangeColorMapping To="{Binding ToRange[1], Source={StaticResource Vm}}"
From="{Binding FromRange[1], Source={StaticResource Vm}}"
Color="#deacb3" />
<syncfusion:RangeColorMapping To="{Binding ToRange[2], Source={StaticResource Vm}}"
From="{Binding FromRange[2], Source={StaticResource Vm}}"
Color="#e0a7af" />
<syncfusion:RangeColorMapping To="{Binding ToRange[3], Source={StaticResource Vm}}"
From="{Binding FromRange[3], Source={StaticResource Vm}}"
Color="#e1a3ac" />
<syncfusion:RangeColorMapping To="{Binding ToRange[4], Source={StaticResource Vm}}"
From="{Binding FromRange[4], Source={StaticResource Vm}}"
Color="#e29fa8" />
<syncfusion:RangeColorMapping To="{Binding ToRange[5], Source={StaticResource Vm}}"
From="{Binding FromRange[5], Source={StaticResource Vm}}"
Color="#e49aa3" />
<syncfusion:RangeColorMapping To="{Binding ToRange[6], Source={StaticResource Vm}}"
From="{Binding FromRange[6], Source={StaticResource Vm}}"
Color="#e5969f" />
<syncfusion:RangeColorMapping To="{Binding ToRange[7], Source={StaticResource Vm}}"
From="{Binding FromRange[7], Source={StaticResource Vm}}"
Color="#e6929b" />
<syncfusion:RangeColorMapping To="{Binding ToRange[8], Source={StaticResource Vm}}"
From="{Binding FromRange[8], Source={StaticResource Vm}}"
Color="#e68d97" />
<syncfusion:RangeColorMapping To="{Binding ToRange[9], Source={StaticResource Vm}}"
From="{Binding FromRange[9], Source={StaticResource Vm}}"
Color="#e78992" />
<syncfusion:RangeColorMapping To="{Binding ToRange[10], Source={StaticResource Vm}}"
From="{Binding FromRange[10], Source={StaticResource Vm}}"
Color="#e8848e" />
<syncfusion:RangeColorMapping To="{Binding ToRange[11], Source={StaticResource Vm}}"
From="{Binding FromRange[11], Source={StaticResource Vm}}"
Color="#e88089" />
<syncfusion:RangeColorMapping To="{Binding ToRange[12], Source={StaticResource Vm}}"
From="{Binding FromRange[12], Source={StaticResource Vm}}"
Color="#e97b84" />
<syncfusion:RangeColorMapping To="{Binding ToRange[13], Source={StaticResource Vm}}"
From="{Binding FromRange[13], Source={StaticResource Vm}}"
Color="#e9767f" />
<syncfusion:RangeColorMapping To="{Binding ToRange[14], Source={StaticResource Vm}}"
From="{Binding FromRange[14], Source={StaticResource Vm}}"
Color="#ea727b" />
<syncfusion:RangeColorMapping To="{Binding ToRange[15], Source={StaticResource Vm}}"
From="{Binding FromRange[15], Source={StaticResource Vm}}"
Color="#ea6d76" />
<syncfusion:RangeColorMapping To="{Binding ToRange[16], Source={StaticResource Vm}}"
From="{Binding FromRange[16], Source={StaticResource Vm}}"
Color="#ea6871" />
<syncfusion:RangeColorMapping To="{Binding ToRange[17], Source={StaticResource Vm}}"
From="{Binding FromRange[17], Source={StaticResource Vm}}"
Color="#ea636b" />
<syncfusion:RangeColorMapping To="{Binding ToRange[18], Source={StaticResource Vm}}"
From="{Binding FromRange[18], Source={StaticResource Vm}}"
Color="#ea5e66" />
<syncfusion:RangeColorMapping To="{Binding ToRange[19], Source={StaticResource Vm}}"
From="{Binding FromRange[19], Source={StaticResource Vm}}"
Color="#e95961" />
<syncfusion:RangeColorMapping To="{Binding ToRange[20], Source={StaticResource Vm}}"
From="{Binding FromRange[20], Source={StaticResource Vm}}"
Color="#e9535c" />
<syncfusion:RangeColorMapping To="{Binding ToRange[21], Source={StaticResource Vm}}"
From="{Binding FromRange[21], Source={StaticResource Vm}}"
Color="#e94e56" />
<syncfusion:RangeColorMapping To="{Binding ToRange[22], Source={StaticResource Vm}}"
From="{Binding FromRange[22], Source={StaticResource Vm}}"
Color="#e84851" />
<syncfusion:RangeColorMapping To="{Binding ToRange[23], Source={StaticResource Vm}}"
From="{Binding FromRange[23], Source={StaticResource Vm}}"
Color="#e7434c" />
<syncfusion:RangeColorMapping To="{Binding ToRange[24], Source={StaticResource Vm}}"
From="{Binding FromRange[24], Source={StaticResource Vm}}"
Color="#e73c46" />
<syncfusion:RangeColorMapping To="{Binding ToRange[25], Source={StaticResource Vm}}"
From="{Binding FromRange[25], Source={StaticResource Vm}}"
Color="#e63640" />
<syncfusion:RangeColorMapping To="{Binding ToRange[26], Source={StaticResource Vm}}"
From="{Binding FromRange[26], Source={StaticResource Vm}}"
Color="#e52f3b" />
<syncfusion:RangeColorMapping To="{Binding ToRange[27], Source={StaticResource Vm}}"
From="{Binding FromRange[27], Source={StaticResource Vm}}"
Color="#e42735" />
<syncfusion:RangeColorMapping To="{Binding ToRange[28], Source={StaticResource Vm}}"
From="{Binding FromRange[28], Source={StaticResource Vm}}"
Color="#e21d2f" />
<syncfusion:RangeColorMapping To="{Binding ToRange[29], Source={StaticResource Vm}}"
From="{Binding FromRange[29], Source={StaticResource Vm}}"
Color="#e11029" />
</syncfusion:ShapeFillSetting.ColorMappings>
</syncfusion:ShapeFillSetting>
</syncfusion:ShapeSetting.FillSetting>
</syncfusion:ShapeSetting>
</syncfusion:ShapeFileLayer.ShapeSettings>
<syncfusion:ShapeFileLayer.PopupCustomTemplate>
<DataTemplate>
<Border>
<Grid Width="250">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Border VerticalAlignment="Center"
Padding="10,5,0,0"
Height="30"
Background="#FF4B4A4A"
Grid.ColumnSpan="2">
<TextBlock Foreground="White"
FontFamily="Segoe UI"
FontSize="14"
Text="{Binding CountyName}" />
</Border>
<Border Padding="3,10,3,3"
Background="White"
Grid.Row="1"
Grid.ColumnSpan="2">
<StackPanel HorizontalAlignment="Center"
VerticalAlignment="Center"
Height="35"
Background="White"
Orientation="Horizontal">
<TextBlock Foreground="Black"
FontFamily="Segoe UI"
FontSize="16"
Text="{Binding TooltipDataValue}" />
</StackPanel>
</Border>
<Border HorizontalAlignment="Center"
Grid.Row="2">
<StackPanel Orientation="Horizontal">
<ItemsControl Background="White"
ItemsSource="{Binding DataValue}"
DisplayMemberPath="CountyName" />
<ItemsControl Background="White"
ItemsSource="{Binding DataValue}"
DisplayMemberPath="DataValue" />
</StackPanel>
</Border>
</Grid>
</Border>
</DataTemplate>
</syncfusion:ShapeFileLayer.PopupCustomTemplate>
</syncfusion:ShapeFileLayer>
</syncfusion:SfMap.Layers>
</syncfusion:SfMap>
</Grid>
</materialDesign:Card>
</Grid>
</Grid>这是在ViewModel中
public class CountiesMapViewModel : Screen
{
private CountiesDataProvider _countiesDataProvider = new CountiesDataProvider();
private MapReportType _mapDataType = new MapReportType();
private ObservableCollection<MapData> _report;
public ObservableCollection<MapData> Report
{
get { return _report; }
set
{
_report = value;
NotifyOfPropertyChange(() => Report);
}
}
private IEnumerable<Counties> _counties;
public IEnumerable<Counties> Counties
{
get { return _counties; }
set
{
_counties = value;
NotifyOfPropertyChange(() => Counties);
}
}
private ObservableCollection<int> _fromRange;
public ObservableCollection<int> FromRange
{
get { return _fromRange; }
set
{
_fromRange = value;
NotifyOfPropertyChange(() => FromRange);
}
}
private ObservableCollection<int> _toRange;
public ObservableCollection<int> ToRange
{
get { return _toRange; }
set
{
_toRange = value;
NotifyOfPropertyChange(() => ToRange);
}
}
public CountiesMapViewModel()
{
_counties = _countiesDataProvider.GetCounties;
Report = new ObservableCollection<MapData>(PrepareReportData(_counties));
PrepareDataRanges(Report.Max(rp => rp.DataValue));
}
public void PrepareDataRanges(decimal maxValue)
{
var fromList = new List<int>();
var toList = new List<int>();
var range = Convert.ToInt32(Math.Round(maxValue / 30));
int lastTo = 0;
for (int i = 0; i < 30; i++)
{
var from = lastTo;
var to = lastTo + range;
lastTo = to + 1;
fromList.Add(from);
toList.Add(to);
}
FromRange = new ObservableCollection<int>(fromList);
ToRange = new ObservableCollection<int>(toList);
}
private ObservableCollection<MapData> PrepareReportData(IEnumerable<Counties> counties)
{
ObservableCollection<MapData> prepareReportData = new ObservableCollection<MapData>();
switch (SelectedReport)
{
case "Liczba Świadczeń":
foreach (var row in counties)
{
prepareReportData.Add(new MapData()
{
CountyId = row.CountyId,
CountyName = row.County,
DataValue = row.NumberOfMedicals,
TooltipDataValue = $"Liczba świadczeń: {row.NumberOfMedicals}"
});
}
break;
case "Liczba Pacjentów":
foreach (var row in counties)
{
prepareReportData.Add(new MapData()
{
CountyId = row.CountyId,
CountyName = row.County,
DataValue = row.NumberOfPatients,
TooltipDataValue = $"Liczba Pacjentów: {row.NumberOfPatients}"
});
}
break;
case "Wartość Zrealizowanych Świadczeń":
foreach (var row in counties)
{
prepareReportData.Add(new MapData()
{
CountyId = row.CountyId,
CountyName = row.County,
DataValue = row.Execution,
TooltipDataValue = $"Wartość zrealizowanych świadczeń: {row.Execution:C}"
});
}
break;
case "Liczba Zrealizowanych Punktów":
foreach (var row in counties)
{
prepareReportData.Add(new MapData()
{
CountyId = row.CountyId,
CountyName = row.County,
DataValue = row.Points,
TooltipDataValue = $"Zrealizowane punkty: {row.Points:N2}"
});
}
break;
}
return prepareReportData;
}
private List<string> _reportType;
public List<string> ReportType
{
get { return _mapDataType.ReportType; }
set
{
_reportType = value;
NotifyOfPropertyChange(() => ReportType);
NotifyOfPropertyChange(() => Report);
}
}
private string _selectedReport = "Liczba Świadczeń";
public string SelectedReport
{
get { return _selectedReport; }
set
{
_selectedReport = value;
NotifyOfPropertyChange(() => SelectedReport);
Report = new ObservableCollection<MapData>(PrepareReportData(_counties));
PrepareDataRanges(Report.Max(rp => rp.DataValue));
NotifyOfPropertyChange(() => Report);
}
}
}
public class MapData
{
public int CountyId { get; set; }
public string CountyName { get; set; }
public decimal DataValue { get; set; }
public string TooltipDataValue { get; set; }
}我使用CaliburnMicro和同步融合的Map。
1条答案
按热度按时间izkcnapc1#
有几件事
1.组合框未绑定到任何对象，因此当为组合框选择新值时，不会执行
SelectedReport的setter中的代码这是因为您只为Map控件设置了DataContext，所以让我们更改视图-视图模型链接的方式
1.替换
与
因此，
CountiesMapViewModel将是所有UserControl的DataContext。现在，删除.“xaml”中出现的所有
DataContext="{StaticResource Vm}"和, Source={StaticResource Vm}，根本不需要这些（第二个在旧代码中甚至不需要）给予看吧。