[英]IsEnabled button in datagrid mvvm wpf
如何使用mvvm啟用/禁用datagrid中的按鈕,其中列狀態等於c#中的某些值?
謝謝。
PS我是mvvm和wpf的新手。
編輯:
我的代碼僅在Datagrid中打印數據。 我想在列狀態等於1時禁用編輯按鈕。
您可以在下面看到我的代碼。
模型文件
public class Reestr
{
private int id;
private string date;
private string market;
private int status;
public int Id
{
get { return id; }
set {
id = value;
}
}
public string Date
{
get { return date; }
set {
date = value;
}
}
public string Market
{
get { return market; }
set {
market = value;
}
}
public int Status
{
get { return status; }
set {
status = value;
}
}
}
ViewModel文件
public ReestrViewModel()
{
reestr = GetListOfReestrs();
reestr.Add(new Reestr() { Date = "01.08.2017", Market = "Market1", Status = 0 });
reestr.Add(new Reestr() { Date = "02.08.2017", Market = "Market2", Status = 1 });
}
public ObservableCollection<Reestr> ReestrItems
{
get { return reestr; }
}
public ObservableCollection<Reestr> GetListOfReestrs()
{
return reestr;
}
XAML文件:
<DataGrid GridLinesVisibility="All"
AutoGenerateColumns="False"
CanUserAddRows="False"
x:Name="ReestrDataGrid"
ItemsSource="{Binding ReestrViewModel.ReestrItems}">
<DataGrid.Columns>
<DataGridTextColumn Header="ID"
Binding="{Binding Id}"
IsReadOnly="True"
Visibility="Hidden"
Width="*"/>
<DataGridTextColumn Header="Date"
Binding="{Binding Date}"
IsReadOnly="True"
Width="*"/>
<DataGridTextColumn Header="Market"
Binding="{Binding Market}"
IsReadOnly="True"
Width="*"/>
<DataGridTextColumn Header="Status"
Binding="{Binding Status}"
IsReadOnly="True"
Width="*"/>
<DataGridTemplateColumn Header="Operations" Width="200">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Button x:Name="ViewButton"
Click="ViewButton_Click"></Button>
<Button x:Name="EditButton"></Button>
</StackPanel>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
您可以將Style
與DataTrigger
:
<Button x:Name="EditButton">
<Button.Style>
<Style TargetType="Button">
<Style.Triggers>
<DataTrigger Binding="{Binding Status}" Value="1">
<Setter Property="IsEnabled" Value="False" />
</DataTrigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
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