Databases
StackOverflow2013
Postsdbo
POHow to log name/path of clicked control in WPF?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to log name/path of clicked control in WPF?
    primarykey
    data
    text
    <p>I use the following code to log every click in our <em>WinForms</em> application. In essence it looks up a control from its <em>HWND</em> and then prints the types and names of the control and all of its parents. Something like <em>MainForm"myWindow">TabPanel"mainTab">Button"save"</em></p> <pre><code>internal class ClickLogger : IMessageFilter { private const int WM_LBUTTONDOWN = 0x0201; private const int WM_LBUTTONDBLCLK = 0x0203; private const int WM_RBUTTONDOWN = 0x0204; private const int MaxRecurseDepth = 30; private readonly ILogger _log; public ClickLogger(ILogger logger) { _log = logger; } [DebuggerStepThrough] public bool PreFilterMessage(ref Message message) { if (message.Msg == WM_LBUTTONDOWN || message.Msg == WM_RBUTTONDOWN || message.Msg == WM_LBUTTONDBLCLK) { string path = "Unknown"; Control ctl = Control.FromHandle(message.HWnd); if (ctl != null) { path = PathFromControl(ctl, MaxRecurseDepth).ToString(); } string logEntry = string.Format("{0} Click on {1}", WndMsgToClickName(message.Msg), path); if (_log.IsInfoEnabled) { _log.Info(logEntry); } } return false; } private StringBuilder PathFromControl(Control control, int maxDepth) { if(maxDepth == 0) { _log.Warn("Max recursion {0} reached whilst resolving path of control", MaxRecurseDepth); return new StringBuilder("ERR"); } string name = control.GetType().Name; if (control.Name.IsNotBlank()) { name = name + "\"" + control.Name + "\""; } if (control.Parent != null &amp;&amp; control.Parent != control) { return PathFromControl(control.Parent, maxDepth - 1).Append("&gt;").Append(name); } return new StringBuilder(name); } public void Initialize() { Application.AddMessageFilter(this); } private static string WndMsgToClickName(int msgId) { switch (msgId) { case WM_LBUTTONDOWN: return "Left"; case WM_LBUTTONDBLCLK: return "Double"; case WM_RBUTTONDOWN: return "Right"; default: return "0x" + Convert.ToString(msgId, 16); } } } </code></pre> <p>Recently we've started to mix <em>WPF</em> and <em>WinForms</em> and the above click logger simply prints "Unknown" for any click on a <em>WPF</em> control. </p> <p>Is there a way I can perform a similar trick for <em>WPF</em> controls? A method that would work across technologies would be great.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USchillitom
    1. USchillitom
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload