我有一个绑定到 DataGrid 的 ObservableCollection,我希望能够在运行时使用实际行在其中添加行。但是,空白行不可见,因此用户无法添加行。我已经对此进行了研究,我添加了 CanUserAddRows=true 和 IsReadOnly=false。我还为 CostCenter 对象添加了一个空白构造函数,但它仍然无法正常工作。下面的代码是我到目前为止所拥有的:
在 XAML 中:
<Window.Resources>
<CollectionViewSource x:Key="jobItemViewSource1" d:DesignSource="{d:DesignInstance my:JobItem, CreateList=True}" />
<CollectionViewSource x:Key="CostCenterListViewSource" Source="{Binding Path=CostCenterList, Source={StaticResource jobItemViewSource1}}" />
</Window.Resources>
<DataGrid AutoGenerateColumns="False" ItemsSource="{Binding Source={StaticResource CostCenterListViewSource}}" Name="costCenterListDataGrid" CanUserResizeRows="False" CanUserAddRows="True" CanUserDeleteRows="True" Background="LightGray" IsReadOnly="False">
<DataGrid.Columns>
<DataGridTextColumn x:Name="nameColumn" Binding="{Binding Path=Name, Mode=TwoWay}" Header="Cost Center" />
<DataGridTextColumn x:Name="glCodeColumn" Binding="{Binding Path=GlCode, Mode=TwoWay}" Header="Gl Code"/>
<DataGridTextColumn x:Name="costCenterPercentageColumn" Binding="{Binding Path=CostCenterPercentage, Mode=TwoWay}" Header="%"/>
</DataGrid.Columns>
</DataGrid>
在后面的代码中,我设置了数据上下文:
costCenterListDataGrid.DataContext = item.CostCenterList;
在 JobItem 类中:
private ObservableCollection<CostCenter> costCenterList;
public JobItem()
{
costCenterList = new ObservableCollection<CostCenter>();
}
public ObservableCollection<CostCenter> CostCenterList
{
get { return costCenterList; }
set
{
costCenterList = value;
}
}
在 CostCenter 课程中,我有:
public CostCenter()
{
afes = new ObservableCollection<Afe>();
}
public CostCenter(ObservableCollection<Afe> afes, string glCode)
{
this.afes = afes;
this.glCode = glCode;
}
public string Name
{
get { return name; }
set
{
if (String.IsNullOrEmpty(Name) || !Name.Equals(value))
{
name = value;
OnPropertyChanged("Name");
}
}
}
public ObservableCollection<Afe> Afes
{
get { return afes; }
set { afes = value; }
}
public string GlCode
{
get { return glCode; }
set
{
if (String.IsNullOrEmpty(GlCode) || !GlCode.Equals(value))
{
glCode = value;
OnPropertyChanged("GlCode");
}
}
}
public double TotalPercentage
{
get { return totalPercentage; }
set
{
if (totalPercentage + value <= 100)
{
totalPercentage += value;
}
}
}
public double CostCenterPercentage
{
get { return cPercentage; }
set
{
if (CostCenterPercentage != value)
{
cPercentage = value;
OnPropertyChanged("CostCenterPercentage");
}
}
}
我试图省略不相关的代码,OnPropertyChanged 方法正在工作,因为我在其他代码中使用过它,否则,希望这是足够的代码来帮助我解决问题。JobItem 的数据上下文也在工作,我也没有在这个片段中添加它。