小编Ahs*_*san的帖子

ToolsVersion和TargetFrameworkVersion有什么区别？

<Project DefaultTargets="Build"  ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
   ......  
    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>

我遵循 MVVM 模式。我想将控件的属性值传递给同一控件的“CommandParameter”属性。但是正在面临“对象引用未设置到对象实例”的运行时异常。

WPF：

 <Button
            x:Name="btnBrowseFirmware1"
            Grid.Row="2"
            Grid.Column="1"
            Width="135"                    
            Height="35"
            Command="{Binding OpenFileDialogCommand}"
            CommandParameter="{Binding  Name ,ElementName=btnBrowseFirmware1}"
            Content="Browse "
            Foreground="White"
             />

视图模型：

  public class ConfigurationParametersViewModel : WorkspaceViewModelBase
{
    public ICommand OpenFileDialogCommand { get; private set; }

    public ConfigurationParametersViewModel()
        : base("ConfigurationParameters", true)
    {
        OpenFileDialogCommand = new RelayCommand<string>(OpenFileDialogCommandFunc);
    }

    private void OpenFileDialogCommandFunc(string browseButtonName)
    {
        OpenFileDialog fileDialog = new OpenFileDialog();
        Some Code...
    }
}

我有下课.

public class User
{
    public User() { }
    public int Id; 
    public string Name; 
    public string Surname; 
    public string PhoneMobil; 
    public string SecondaryPhone; 
    public string Job; 
    public string Sex; 
    public string DepartmentName; 

    public int ID { get{return Id;} set { Id = 111; } }
    public string NAME { get { return Name; } set { Name = "ahsan riaz 1111"; } }
    public string SURNAME { get { return Surname; } set { Surname = "ahsan 1111 riaz"; …

如何设置静态类的私有静态只读数据库？

 public static class SessionInformation
 {
    private static readonly string UserName;
    private static readonly string PluginID;
    private static readonly string SessionID;
 }

我有一些动态信息将存储在这个静态类中,但我希望以后不要编辑这些信息.