如何在C＃WPF DataGrid中获取选定的行值？

我正在使用Powershell命令在C＃WPF中编写此代码。如何在C＃WPF DataGrid中获取选定的行值？

我首先创建DataGrid列对象：

public class Item 
{ 
    public object ID { get; set; } 
    public object ProcessName { get; set; } 
    public object Handles { get; set; } 
    public object NPM { get; set; } 
    public object PM { get; set; } 
    public object WS { get; set; } 
    public object Path { get; set; } 
}

然后将以下代码填充一个DataGrid显示我的电脑上所有正在运行的进程：

private void btnGetProcess_Click(object sender, RoutedEventArgs e) 
{ 
    //Creates fields 
    DataGridTextColumn c1 = new DataGridTextColumn(); 
    c1.Header = "ID"; 
    c1.Binding = new Binding("ID"); 

    dgdProcessList.Columns.Add(c1); 
    DataGridTextColumn c2 = new DataGridTextColumn(); 
    c2.Header = "Process Name"; 
    c2.Binding = new Binding("ProcessName"); 
    dgdProcessList.Columns.Add(c2); 

    DataGridTextColumn c3 = new DataGridTextColumn(); 
    c3.Header = "Handles"; 
    c3.Binding = new Binding("Handles"); 
    dgdProcessList.Columns.Add(c3); 

    DataGridTextColumn c4 = new DataGridTextColumn(); 
    c4.Header = "NPM(K)"; 
    c4.Binding = new Binding("NPM"); 
    dgdProcessList.Columns.Add(c4); 

    DataGridTextColumn c5 = new DataGridTextColumn(); 
    c5.Header = "PM(K)"; 
    c5.Binding = new Binding("PM"); 
    dgdProcessList.Columns.Add(c5); 

    DataGridTextColumn c6 = new DataGridTextColumn(); 
    c6.Header = "WS(K)"; 
    c6.Binding = new Binding("WS"); 
    dgdProcessList.Columns.Add(c6); 

    DataGridTextColumn c7 = new DataGridTextColumn(); 
    c6.Header = "Path"; 
    c6.Binding = new Binding("Path"); 
    dgdProcessList.Columns.Add(c7); 

    //Connection to hostname successful 
    Runspace runspace = RunspaceFactory.CreateRunspace(); 
    runspace.Open(); 

    PowerShell ps = PowerShell.Create(); // Create a new PowerShell instance 
    ps.Runspace = runspace; // Add the instance to the runspace 
    ps.Commands.AddScript("Get-Process | Select-Object ID, ProcessName, Handles, NPM, PM, WS, Path"); // Add a script 
    Collection<PSObject> results = ps.Invoke(); 

    runspace.Close(); 

    foreach (PSObject obj in results) 
    { 
     object IDOutput; 
     object ProcessNameOutput; 
     object HandlesOutput; 
     object NPMOutput; 
     object PMOutput; 
     object WSOutput; 
     object PathOutput; 

     IDOutput = obj.Properties["ID"].Value; 
     ProcessNameOutput = obj.Properties["ProcessName"].Value; 
     HandlesOutput = obj.Properties["Handles"].Value; 
     NPMOutput = obj.Properties["NPM"].Value; 
     PMOutput = obj.Properties["PM"].Value; 
     WSOutput = obj.Properties["WS"].Value; 
     PathOutput = obj.Properties["Path"].Value; 
     dgdProcessList.Items.Add(new Item() { ID = IDOutput, ProcessName = ProcessNameOutput, Handles = HandlesOutput, NPM = NPMOutput, PM = PMOutput, WS = WSOutput, Path = PathOutput }); 
    } 
}

我试图找出如何获取选定的行值。更特别的是，我希望能够获得我选择的行的“ID”字段值。

我已经花了最后几个小时玩不同的属性变化（SelectedItem，SelectedValue，GetValue等），但我似乎无法得到它的工作。例如，此代码返回一个值（ProjectName.FormName + Item），但不是实际的对象值：

MessageBox.Show(dgdProcessList.SelectedValue.ToString());

任何帮助表示赞赏！谢谢。

来源

2017-03-25 E. Box

什么是'Item'？ –

@ MathiasR.Jessen是我在使用上面的消息框示例时收到的文本文本。 –

不，我的意思是在'dgdProcessList.Items.Add（new Item（）{...}）'< - Item是什么？ –

铸就DataGrid的SelectedItem属性您Item类型：

var selectedItem = dgdProcessList.SelectedItem as Item; 
if(selectedItem != null) 
    MessageBox.Show(selectedItem.ID.ToString());

来源

2017-03-26 20:41:50 mm8

完美！这工作。 –

如何在C＃WPF DataGrid中获取选定的行值？

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