我有一个DataGrid
,其中有Jobs
个用户可以添加/更新/删除的选项。我的问题DataGrid
的问题在于,当数据加载到其中时,我希望它自动填写一些TextBoxes
,其中包含DataGrid
中第一项的详细信息。我是通过在SelectionChanged
;
DataGrid
事件的方法来完成的
private void DataGridSelectionChanged(object sender, SelectionChangedEventArgs e)
{
var selectedJob = dataGrid.SelectedItem as JobModel;
//MessageBox.Show(selectedJob.ITName);
if (selectedJob != null)
{
notesTextBox.Text = selectedJob.CaseNotes;
createdPicker.SelectedDate = DateTime.Parse(selectedJob.DateCreated.ToString("yyyy-MM-dd"));
deadlinePicker.SelectedDate = DateTime.Parse(selectedJob.DateDeadline.ToString("yyyy-MM-dd"));
nameTextBox.Text = selectedJob.CaseClient;
itNameComboBox.SelectedItem = selectedJob.ITName;
}
}
此处的问题是,TextBoxes
加载后DatePickers
(和DataGrid
)未填写。但是,如果我取消注释MessageBox
,则数据会正确填写。这是一个很大的问题,好像DataGrid
中只有一个作业,然后用户无法选择它来删除或更新它。以下是XAML
本身的DataGrid
;
<DataGrid x:Name="dataGrid" ColumnWidth="*" IsReadOnly="true"
Margin="10" Grid.ColumnSpan="3" FontSize="18.667"
HeadersVisibility="Column" AutoGenerateColumns="False"
CanUserAddRows="False"
IsSynchronizedWithCurrentItem="True"
EnableRowVirtualization="True"
ItemsSource="{Binding JobsCollectionView}"
MinColumnWidth="0" SelectionChanged="DataGridSelectionChanged">
<DataGrid.RowStyle>
<Style TargetType="DataGridRow">
<Style.Triggers>
<DataTrigger Binding="{Binding Overdue}" Value="1">
<Setter Property="Background" Value="Red"/>
<Setter Property="FontWeight" Value="Bold"/>
</DataTrigger>
</Style.Triggers>
</Style>
</DataGrid.RowStyle>
<DataGrid.Columns>
<!--<DataGridTextColumn Header="Case NO" Width="*" Binding="{Binding CaseNumber}"/>!-->
<DataGridTextColumn Header="IT Person" Width="*" Binding="{Binding ITName}"/>
<DataGridTextColumn Header="Case Notes" Width="*" Binding="{Binding CaseNotes}"/>
<DataGridTextColumn Header="Date Created" Width="*" Binding="{Binding DateCreated, StringFormat=dd/MM/yyyy}"/>
<DataGridTextColumn Header="Deadline Date" Width="*" Binding="{Binding DateDeadline, StringFormat=dd/MM/yyyy}"/>
<DataGridTextColumn Header="Employee Name" Width="*" Binding="{Binding CaseClient}"/>
</DataGrid.Columns>
</DataGrid>
填充DataGrid
;
public void FillDataGrid()
{
_jobDataService = new JobDataService();
var _jobs = new ObservableCollection<JobModel>();
_jobs = _jobDataService.GetJobList();
JobsCollectionView = CollectionViewSource.GetDefaultView(_jobs);
DataContext = this;
foreach (JobModel currentJob in JobsCollectionView)
{
if (DateTime.Now == currentJob.DateDeadline)
{
currentJob.Overdue = 0;
}
else if (DateTime.Now > currentJob.DateDeadline)
{
currentJob.Overdue = 1;
}
}
}
是否有一些明显我遗漏的东西阻止了SelectionChanged
事件被调用?如果我取消MessageBox
它按预期工作的话,我觉得很奇怪。
答案 0 :(得分:0)
我已经通过完全删除SelectionChanged
事件来回答这个问题。相反,我将XAML
中的UI元素绑定在一起;
<TextBox x:Name="notesTextBox" Text="{Binding SelectedItem.CaseNotes, ElementName=dataGrid}" Margin="5" FontSize="21.333" Grid.Column="1" VerticalAlignment="Center"/>
绑定到SelectedItem
中的XAML
现在可以正常工作。