La liaison de données de viewmodel de vue

Je suis nouveau sur wpf mvvm.

J'ai besoin de lier des données à la vue de la propriété du viewmodel. Dans le modèle que j'ai déclaré toutes les propriétés et dans la viewmodel je déclare des propriétés à l'aide de méthodes getter et setter.

Quand suis en train d'essayer de lier les valeurs, ce n'est pas la mise à jour de la vue, mais obtenir des valeurs liées à l'propriétés. Les contrôles sont à l'intérieur d'une grille. Les contrôles ne sont pas de liaison à l'intérieur d'une grille. J'ai besoin de lier des données à des contrôles de quand suis-cliquant sur la ligne d'une grille de données. J'obtiens des valeurs, mais il n'est pas d'obtenir lié aux contrôles.

S'il vous plaît aidez-moi immédiatement.

C'est mon modèle.

public string FirstName{get;set;}        
public string LastName { get; set; }
public DateTime Dob { get; set; }
public int Age { get; set; }
public string Street1 { get; set; }
public string Street2 { get; set; }
public string City { get; set; }
public string State { get; set; }
public string ZipCode { get; set; }
public string PhoneNumber { get; set; }
public string MobileNumber { get; set; }
public string Email { get; set; }
public string Web { get; set;}

C'est mon point de vue modèle,

public string Emp_ID;
public string emp_ID {
get {
return emp_ID;
}
set {
emp_ID = value;
OnPropertyChanged("Emp_ID");
}
}
public string FirstName {
get {
return employee.FirstName;
}
set {
employee.FirstName = value;
OnPropertyChanged("FirstName");
this.DetailView = new HomeViewModel(value);
}
}
public string LastName {
get {
return employee.LastName;
}
set {
employee.LastName = value;
OnPropertyChanged("LastName");
}
}
public DateTime Dob {
get {
return employee.Dob;
}
set {
employee.Dob = value;
OnPropertyChanged("Dob");
OnPropertyChanged("Age");
}
}
public int Age {
get {
//Birthdate = Convert.ToDateTime(Dob);
return employee.Age = DateTime.Today.Year - Dob.Year;
}
set {
employee.Age = value;
OnPropertyChanged("Age");
}
}
public string Street1 {
get {
return employee.Street1;
}
set {
employee.Street1 = value;
OnPropertyChanged("Street1");
}
}
public string Street2 {
get {
return employee.Street2;
}
set {
employee.Street2 = value;
OnPropertyChanged("Street2");
}
}
public string City {
get {
return employee.City;
}
set {
employee.City = value;
OnPropertyChanged("City");
}
}
public string State {
get {
return employee.State;
}
set {
employee.State = value;
OnPropertyChanged("State");
}
}
public string ZipCode {
get {
return employee.ZipCode;
}
set {
employee.ZipCode = value;
OnPropertyChanged("ZipCode");
}
}
public string PhoneNumber {
get {
return employee.PhoneNumber;
}
set {
employee.PhoneNumber = value;
OnPropertyChanged("PhoneNumber");
}
}
public string MobileNumber {
get {
return employee.MobileNumber;
}
set {
employee.MobileNumber = value;
OnPropertyChanged("MobileNumber");
}
}
public string Email {
get {
return employee.Email;
}
set {
employee.Email = value;
OnPropertyChanged("Email");
}
}
public string Web {
get {
return employee.Web;
}
set {
employee.Web = value;
OnPropertyChanged("Web");
}
}

C'est mon code de liaison dans le viewmodel

public ICommand SelectEmployeeCommand {
get {
return selectEmployeeCommand;
}
set {
selectEmployeeCommand = value;
}
}
private void selectEmployeeDetails() {
EmployeeViewModel employeeView = new EmployeeViewModel();
try {
sqlConnection = new SqlConnection(Connection.connectionstring);
sqlConnection.Open();
selectCommand = new SqlCommand(AppConstants.StoredProcedures.GetDataProcedure, sqlConnection);
selectCommand.CommandType = CommandType.StoredProcedure;
selectCommand.Parameters.Add(AppConstants.Parameters.Emp_ID, SqlDbType.Int).Value = SelectedEmployee.Row.ItemArray[0];
sqlAdapter = new SqlDataAdapter(selectCommand);
sqlDataSet = new DataSet();
sqlAdapter.Fill(sqlDataSet);
employeeView.FirstName = sqlDataSet.Tables[0].Rows[0][1].ToString();
employeeView.LastName = sqlDataSet.Tables[0].Rows[0][2].ToString();
employeeView.Dob = Convert.ToDateTime(sqlDataSet.Tables[0].Rows[0][3].ToString());
employeeView.Age = Convert.ToInt32(sqlDataSet.Tables[0].Rows[0][4].ToString());
employeeView.Street1 = sqlDataSet.Tables[0].Rows[0][5].ToString();
employeeView.Street2 = sqlDataSet.Tables[0].Rows[0][6].ToString();
employeeView.City = sqlDataSet.Tables[0].Rows[0][7].ToString();
employeeView.State = sqlDataSet.Tables[0].Rows[0][8].ToString();
employeeView.ZipCode = sqlDataSet.Tables[0].Rows[0][9].ToString();
employeeView.PhoneNumber = sqlDataSet.Tables[0].Rows[0][10].ToString();
employeeView.MobileNumber = sqlDataSet.Tables[0].Rows[0][11].ToString();
employeeView.Email = sqlDataSet.Tables[0].Rows[0][12].ToString();
employeeView.Web = sqlDataSet.Tables[0].Rows[0][13].ToString();
} catch (Exception ex) {
throw ex;
}
}

c'est ma xaml pour la vue

<Window x:Class="EmployeeRegistration.Home" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:cmd="clr-namespace:GalaSoft.MvvmLight.Command;assembly=GalaSoft.MvvmLight.Extras.WPF4" xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity" xmlns:View="clr-namespace:EmployeeRegistration" Title="Home" Height="595" Width="1096">
<Window.DataContext>
<View:EmployeeViewModel></View:EmployeeViewModel>
</Window.DataContext>
<i:Interaction.Triggers>
<i:EventTrigger EventName="Loaded">
<cmd:EventToCommand Command="{Binding GetEmployeeCommand}" />
</i:EventTrigger>
</i:Interaction.Triggers>
<Window.Resources>
<Style TargetType="Control" x:Key="myErrorTemplate">
<Setter Property="Validation.ErrorTemplate"><Setter.Value><ControlTemplate><Border BorderBrush="Red" BorderThickness="1" CornerRadius="2.75" Grid.Column="0"><AdornedElementPlaceholder Name="MyControl" Grid.Column="0"/></Border></ControlTemplate></Setter.Value></Setter><Style.Triggers><Trigger Property="Validation.HasError" Value="true"><Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self},
Path=(Validation.Errors)[0].ErrorContent
}
"/>
</Trigger></Style.Triggers>
</Style>
<Style TargetType="TextBox" BasedOn="{StaticResource myErrorTemplate}" />
</Window.Resources>
<Grid Height="984" Width="1073">
<Grid.RowDefinitions>
<RowDefinition Height="65"></RowDefinition>
<RowDefinition Height="36"></RowDefinition>
<RowDefinition Height="35" />
<RowDefinition Height="44"></RowDefinition>
<RowDefinition Height="45" />
<RowDefinition Height="49" />
<RowDefinition Height="56" />
<RowDefinition Height="43" />
<RowDefinition Height="40" />
<RowDefinition Height="37"></RowDefinition>
<RowDefinition Height="39*" />
<RowDefinition Height="42*" />
<RowDefinition Height="453*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="538"></ColumnDefinition>
<ColumnDefinition Width="121" />
<ColumnDefinition Width="149" />
<ColumnDefinition Width="110" />
<ColumnDefinition Width="182" />
</Grid.ColumnDefinitions>
<Label Name="lblEmployeeDetails" Content="EMPLOYEE DETAILS" FontFamily="Calibri" FontSize="26" HorizontalAlignment="Center" Margin="117,12,125,6" Width="296"></Label>
<Label Name="lblHeading" Grid.Column="1" Content="UPDATE EMPLOYEE DETAILS" FontFamily="Calibri" FontSize="26" VerticalAlignment="Center" HorizontalAlignment="Center" Height="44" Width="486" Margin="49,10,27,10" Grid.ColumnSpan="4">
</Label>
<TextBlock Margin="0,-2,53,21" HorizontalAlignment="Right" Width="148" Grid.Column="3" Grid.ColumnSpan="2">
<Button Name="btnNewEmployee" Command="{Binding NewEmployeeCommand}" Content="New Employee Registration" FontFamily="Calibri" Background="#FF2693A7" Foreground="White" />
</TextBlock>
<Label Name="lblEnterName" Grid.Row="1" Content="Enter Employee Name:" FontFamily="Calibri" FontSize="16" Margin="0,8,12,21" Grid.RowSpan="2"></Label>
<TextBox Name="txtSearch" Text="{Binding Path=FirstName,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Grid.Row="1" Margin="174,18,0,31" HorizontalAlignment="Left" Width="186" Grid.RowSpan="2"></TextBox>
<Button Name="btnSearch" Command="{Binding SearchEmployeeCommand}" Grid.Row="1" Content="Search" Margin="0,18,61,31" HorizontalAlignment="Right" Width="103" Foreground="White" Background="Black" Grid.RowSpan="2"></Button>
<DataGrid Grid.Row="3" x:Name="grdEmployee" SelectedItem="{Binding SelectedEmployee, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" ItemsSource="{Binding EmployeeDatatable, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, NotifyOnSourceUpdated=True}" AutoGenerateColumns="False" IsReadOnly="True" FontFamily="Calibri" HorizontalAlignment="Center" Margin="5,5,39,0" Width="494" CanUserAddRows="False" Background="#FF20E0BB" AlternatingRowBackground="#FF7CB4AB" Height="405" VerticalAlignment="Top" Grid.RowSpan="10">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Emp_id}" Header="Employee ID"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding FirstName}" Header="FirstName"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding LastName}" Header="LastName"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Age}" Header="Age"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding ZipCode}" Header="ZipCode"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding PhoneNumber}" Header="PhoneNumber"></DataGridTextColumn>
<DataGridTextColumn Binding="{Binding MobileNumber}" Header="MobileNumber"></DataGridTextColumn>
<DataGridTemplateColumn>
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Button Content="Edit" Command="{Binding DataContext.SelectEmployeeCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DataGrid}}}" CommandParameter="{Binding SelectedEmployee}"></Button>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
<Label Content="*" Grid.Row="1" Height="30" HorizontalAlignment="Left" Margin="152,10,0,0" Name="lblReqField" VerticalAlignment="Top" Width="16" Foreground="Red" Grid.RowSpan="2" />
<Label Name="lblPersonalInfo" Content="PERSONAL INFO" FontFamily="Calibri" FontSize="20" Foreground="#FF1C48D8" Grid.Column="1" Grid.Row="1" Height="36" HorizontalAlignment="Left" VerticalAlignment="Top" Grid.ColumnSpan="2" Width="270" />
<Label Grid.Column="1" Grid.Row="2" Height="35" HorizontalAlignment="Left" Name="lblFirstName" Content="FirstName" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="80" />
<TextBox Grid.Column="2" Grid.Row="2" Height="25" HorizontalAlignment="Left" Name="txtFirstName" Text="{Binding employee.FirstName, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type Window}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" BorderBrush="#FF179EB7" VerticalAlignment="Top" Width="130" Margin="9,4,0,0" />
<Label Height="35" HorizontalAlignment="Left" Margin="0,9,0,0" Name="lblLastName" Content="LastName" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="80" Grid.Column="1" Grid.Row="3" />
<TextBox BorderBrush="#FF179EB7" Height="25" HorizontalAlignment="Left" Name="txtLastName" Text="{Binding Path=DataContext.LastName, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type Grid}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" VerticalAlignment="Top" Width="130" Grid.Column="2" Grid.Row="3" Margin="8,9,0,0" />
<Label Height="35" HorizontalAlignment="Left" Margin="0,10,0,0" Name="lblDob" Content="DOB" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="56" Grid.Column="1" Grid.Row="4" />
<DatePicker Grid.Column="2" Grid.Row="4" Name="dtpDob" Text="{Binding DataContext.Dob, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type Grid}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Height="25" HorizontalAlignment="Left" Margin="9,10,0,0" VerticalAlignment="Top" Width="129" />
<Label Height="28" HorizontalAlignment="Left" Name="lblAge" Content="Age" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="56" Grid.Column="1" Grid.Row="5" Margin="0,6,0,0" />
<TextBox Height="25" HorizontalAlignment="Left" Name="txtAge" BorderBrush="#FF179EB7" IsReadOnly="True" Text="{Binding DataContext.Age, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type Grid}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" VerticalAlignment="Top" Width="129" Grid.Column="2" Grid.Row="5" Margin="9,6,0,0" />
<Label Height="35" HorizontalAlignment="Left" Margin="0,6,0,0" Name="lblAddressInfo" Content="ADDRESS INFO" FontFamily="Calibri" FontSize="20" VerticalAlignment="Top" Width="270" Grid.Column="1" Grid.Row="6" Grid.ColumnSpan="2" />
<Label Height="35" HorizontalAlignment="Left" Name="lblStreet1" Content="Street1" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="56" Grid.Column="1" Grid.Row="7" />
<TextBox Name="txtStreet1" BorderBrush="#FF179EB7" Text="{Binding DataContext.Street1, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type Grid}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Height="25" HorizontalAlignment="Left" VerticalAlignment="Top" Width="129" Grid.Column="2" Grid.Row="7" Margin="9,8,0,0" />
<Label Height="35" HorizontalAlignment="Left" Name="lblStreet2" Content="Street2" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="56" Grid.Column="1" Grid.Row="8" />
<TextBox Name="txtStreet2" BorderBrush="#FF179EB7" Text="{Binding Path=Street2, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type Grid}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Height="25" HorizontalAlignment="Left" Margin="9,6,0,0" VerticalAlignment="Top" Width="130" Grid.Column="2" Grid.Row="8" />
<Label Height="35" HorizontalAlignment="Left" Name="lblCity" Content="City" FontFamily="Calibri" FontSize="16" Margin="0,1,0,0" VerticalAlignment="Top" Width="56" Grid.Column="1" Grid.Row="9" />
<ComboBox Text="{Binding DataContext.City, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type Grid}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Name="cmbCity" Width="129" Height="25" BorderBrush="#FF179EB7" Grid.Column="2" Grid.Row="9" HorizontalAlignment="Left" Margin="9,5,0,0" VerticalAlignment="Top">
<ComboBoxItem Content="Kasargod"></ComboBoxItem>
<ComboBoxItem Content="Kannur"></ComboBoxItem>
<ComboBoxItem Content="Thrissur"></ComboBoxItem>
<ComboBoxItem Content="Ernakulam"></ComboBoxItem>
<ComboBoxItem Content="Palakkad"></ComboBoxItem>
<ComboBoxItem Content="Alappuzha"></ComboBoxItem>
<ComboBoxItem Content="Chennai"></ComboBoxItem>
<ComboBoxItem Content="WhiteField"></ComboBoxItem>
<ComboBoxItem Content="Bangalore"></ComboBoxItem>
</ComboBox>
<Label Height="35" HorizontalAlignment="Left" Name="lblState" Content="State" FontFamily="Calibri" FontSize="16" Margin="0,4,0,0" VerticalAlignment="Top" Width="56" Grid.Column="1" Grid.Row="10" />
<ComboBox Height="25" HorizontalAlignment="Left" Margin="9,6,0,0" VerticalAlignment="Top" Width="129" Grid.Column="2" Grid.Row="10" Text="{Binding Path=State, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Name="cmbState" BorderBrush="#FF179EB7">
<ComboBoxItem Content="Kerala"></ComboBoxItem>
<ComboBoxItem Content="Karnataka"></ComboBoxItem>
<ComboBoxItem Content="TamilNadu"></ComboBoxItem>
<ComboBoxItem Content="AndhraPradesh"></ComboBoxItem>
<ComboBoxItem Content="Rajastan"></ComboBoxItem>
</ComboBox>
<Label Height="35" HorizontalAlignment="Left" Name="lblZipcode" Content="ZipCode" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="65" Grid.Column="1" Grid.Row="11" Margin="3,5,0,0" />
<TextBox Name="txtZipcode" BorderBrush="#FF179EB7" Text="{Binding Path=ZipCode,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Height="25" HorizontalAlignment="Left" VerticalAlignment="Top" Width="130" Grid.Column="2" Grid.Row="11" Margin="9,0,0,0" />
<Label Height="35" HorizontalAlignment="Left" Name="lblContactInfo" Content="CONTACT INFO" FontFamily="Calibri" FontSize="20" VerticalAlignment="Top" Width="165" Grid.Column="3" Grid.Row="6" Grid.ColumnSpan="2" Margin="0,6,0,0" />
<Label Height="35" HorizontalAlignment="Left" Name="lblPhoneNumber" Content="PhoneNumber" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="110" Grid.Column="3" Grid.Row="7" />
<TextBox Height="25" Name="txtPhoneNo" BorderBrush="#FF179EB7" Text="{Binding Path=PhoneNumber,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" HorizontalAlignment="Left" Margin="1,0,0,0" VerticalAlignment="Top" Width="129" Grid.Column="4" Grid.Row="7" />
<Label Height="35" HorizontalAlignment="Left" Name="lblMobileNumber" Content="MobileNumber" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="109" Grid.Column="3" Grid.Row="8" Margin="1,2,0,0" Grid.RowSpan="2" />
<TextBox Name="txtMobileNo" BorderBrush="#FF179EB7" Text="{Binding Path=MobileNumber,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Height="25" HorizontalAlignment="Left" Margin="1,4,0,0" VerticalAlignment="Top" Width="129" Grid.Column="4" Grid.Row="8" />
<Label Height="35" HorizontalAlignment="Left" Name="lblEmail" Content="Email" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="56" Grid.Column="3" Grid.Row="9" Margin="0,1,0,0" />
<TextBox Name="txtEmail" BorderBrush="#FF179EB7" Text="{Binding Path=Email,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Height="25" HorizontalAlignment="Left" Margin="0,5,0,0" VerticalAlignment="Top" Width="129" Grid.Column="4" Grid.Row="9" />
<Label Height="35" HorizontalAlignment="Left" Name="lblWeb" Content="Web" FontFamily="Calibri" FontSize="16" VerticalAlignment="Top" Width="56" Grid.Column="3" Grid.Row="10" Margin="1,4,0,0" />
<TextBox Name="txtWeb" BorderBrush="#FF179EB7" Text="{Binding Path=Web,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Height="25" HorizontalAlignment="Left" Margin="1,4,0,0" VerticalAlignment="Top" Width="129" Grid.Column="4" Grid.Row="10" />
</Grid>
</Window>

si vous ne pas faire des erreurs, essayez de rechercher dans la vue de sortie pour certains de liaison des erreurs. qu'avez-vous là?
Qu'est-ce que l'utilisation de la méthode selectEmployeeDetails?. Vous remplissez toutes les données dans une variable locale. Vous devez stocker les données employee.
vérifiez aussi votre Viewmodel de la Propriété emp_ID, vous avez également une variable publique Emp_ID et votre OnPropertyChanged est appelé pour Emp_ID mais cette variable n'est jamais rempli
Sélectionnez les informations sur les employés est utilisé pour sélectionner les détails de quand suis-cliquant sur la ligne sélectionnée..essaie de lier sélectionné les valeurs de ligne
Est le DataGrid dans le même point de vue? Est-il possible pour vous poster la complète XAML de la View?
Si vous êtes nouveau à WPF et MVVM, alors pourquoi ne pas commencer avec un simple exercice jusqu'à ce que vous avez réellement comprendre la langue et de la méthodologie?
k sûr..je l'hépatite a ajouté complète xaml..
je l'hépatite a essayé tout simplement l'application de relativesource dans certaines propriétés..bt il ne fonctionne pas..je l'hépatite a ajouté ancêtre type de grille..et je l'hépatite a uniquement un viewmodel..

InformationsquelleAutor user2786086 | 2013-09-20

binding c#datagrid mvvm wpf

Je ne vois pas exactement ce que vous essayez de lier, mais reguardless, je ne vois pas une mise en œuvre de la INotfyPropertyChanged de l'interface sur votre classe. Vous devez mettre en œuvre dans votre ViewModel de la sorte:

public class SomeClass : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
//This method is called by the Set accessor of each property. 
//The CallerMemberName attribute that is applied to the optional propertyName 
//parameter causes the property name of the caller to be substituted as an argument. 
private void NotifyPropertyChanged([CallerMemberName] String propertyName = "")
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
private int percent = 0;
public int Percent 
{
get { return percent; }
set
{
if (value != percent)
{
percent = value;
NotifyPropertyChanged();
}
}
}
}

La liaison ici serait alors tout droit vers l'avant

...
<ProgressBar Value="{Binding Percent}" />
...

J'espère que cette aide.

Noter que vous avez besoin .NET-Framework 4.5 notre ci-dessus pour utiliser CallerMemberName.

Le code affiche les appels à OnPropertyChanged donc sans doute il est un événement PropertyChanged qui n'a pas été démontré.

InformationsquelleAutor MoonKnight

0

Le problème, c'est que vous avez 2 EmployeeViewModel objets. L'un est créé dans le code XAML et affecté au DataContext et celui créé lors de la selectEmployeeDetails() est appelée.

Il est difficile de savoir pourquoi vous êtes la création d'un autre EmployeeViewModel objet dans selectEmployeeDetails() qui sans doute est une fonction membre de EmployeeViewModel.

Devrait vous venez de définir les propriétés d'objets à l'intérieur de cette fonction?
- je vous remercie..maintenant itz de travail...merci beaucoup
- Rappelez-vous d'accepter les réponses aux questions qui ont été répondues! Voir stackoverflow.com/help/someone-answers pour plus d'info.
InformationsquelleAutor grantnz

Par la voie,

public string Emp_ID;
public string emp_ID
{
get
{
return emp_ID;
}
set
{
emp_ID = value;
OnPropertyChanged("Emp_ID");
}
}

ce sera la cause de récursive d'appel et de réglage, modifier emp_ID à Emp_ID

InformationsquelleAutor Maximus

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