invoke

Why does VS2010 always break on exception from MethodInfo.Invoke?

由 一个人想着一个人 提交于 2019-12-05 08:54:54
I have a try/catch around a MethodInfo.Invoke(o,null), and VS2010 is set to never break on Exceptions, but unfortunately the debugger continues to break inside the Invoked method. The method is static, and I've got the Phone Developer Beta installed. Is this a bug or developer error? Thx!! exsulto Yes, with every exception check-box is un-checked it breaks on only these Invoke exceptions. All the other exceptions work fine. The great news is that an anonymous genius gave me a work-around: delegate void VoidTest(); VoidTest test = (VoidTest)Delegate.CreateDelegate(typeof(VoidTest), o, method

Accessing Class members with Invoke from a different thread in C#

由 眉间皱痕 提交于 2019-12-05 06:01:58
问题 Note : Part of a series: C#: Accessing form members from another class and How to access form objects from another cs file in C#. Hello, The Idea is to notify the user using the memo when a packet is received/sent in a TCP Client. After couple of fixes,the most suitable solution seemed to be this one public string TextValue { set { this.Memo.Text += value + "\n"; } } That's how it's being called var form = Form.ActiveForm as Form1; if(form != null) form.TextValue = "Test asdasd"; However

A threading problem where mono hangs and MS.Net doesn't

由 南笙酒味 提交于 2019-12-05 05:50:33
I'm testing my app with mono in prevision of a Linux port, and I have a threading problem. I initially considered pasting 3000 code lines here, but finally I've devised a small minimal example ;) You have a form with a button (poetically named Button1 , and a label (which bears, without surprise, the name Label1 )). The whole lot is living a happy life on a form called Form1 . Clicking Button1 launches an infinite loop that increments a local counter and updates Label1 (using Invoke ) to reflect its value. Now in Mono, if you resize the form, the label stops updating, never to restart. This

PowerShell Pass Named parameters to ArgumentList

由 主宰稳场 提交于 2019-12-05 02:41:15
I have a PowerShell script that accepts 3 named parameters. Please let me know how to pass the same from command line. I tried below code but same is not working. It assigns the entire value to P3 only. My requirement is that P1 should contain 1, P2 should 2 and P3 should be assigned 3. Invoke-Command -ComputerName server -FilePath "D:\test.ps1" -ArgumentList {-P1 1 -P2 2 -P3 3} Ihe below is script file code. Param ( [string]$P3, [string]$P2, [string]$P1 ) Write-Output "P1 Value :" $P1 Write-Output "P2 Value:" $P2 Write-Output "P3 Value :" $P3 One option: $params = @{ P1 = 1 P2 = 2 P3 = 3 }

How to call the __invoke method of a member variable inside a class

由 断了今生、忘了曾经 提交于 2019-12-05 01:47:28
PHP 5.4.5, here. I'm trying to invoke an object which is stored as a member of some other object. Like this (very roughly) class A { function __invoke () { ... } } class B { private a = new A(); ... $this->a(); <-- runtime error here } This produces a runtime error, of course, because there's no method called a. But if I write the call like this: ($this->a)(); then I get a syntax error. Of course, I can write $this->a->__invoke(); but that seems intolerably ugly, and rather undermines the point of functors. I was just wondering if there is a better (or official) way. There's three ways:

what is invoking?

由 ∥☆過路亽．° 提交于 2019-12-05 00:51:19
What is method invoke, control.invoke? What is invoking in general in programming examples : MethodInvoker getValues = new MethodInvoker(delegate() { checkbox1Checked = checkbox1.Checked; textBox6Text = textBox6.Text; textBox7Text = textBox7.Text; textBox3Text = textBox3.Text; textBox1Text = textBox1.Text; textBox4Text = textBox4.Text; richTextBox1Text = richTextBox1.Text; textBox5Text = textBox5.Text; }); if (this.InvokeRequired) { this.Invoke(getValues); } else { getValues(); } And I also wanna know what does MethodInvoker and InvokeRequired mean? Dror Helper “Invoking” refers to calling a

Why exceptions are not propagated by WPF Dispatcher.Invoke?

由 岁酱吖の 提交于 2019-12-04 16:37:26
问题 Here's my hypothetical example. I have a very simple WPF window with a one Button. The Button.Click event has a handler that goes like this. Action doit = () => { Action error = () => { throw new InvalidOperationException("test"); }; try { this.Dispatcher.Invoke(error, DispatcherPriority.Normal); } catch (Exception ex) { System.Diagnostics.Trace.WriteLine(ex); throw; } }; doit.BeginInvoke(null, null); I would expect that the exception would be caught and written down by the Trace.WriteLine

PowerShell Invoke-Sqlcmd switches into sqlps session

由 青春壹個敷衍的年華 提交于 2019-12-04 15:46:18
问题 I am writing a script in PowerShell ISE and I am using Invoke-Sqlcmd. After the command is executed the Powershell session switches into sqlps session (PS SQLSERVER:>) and I can't execute script for the second time. I have to quit PowerShell ISE and start it again. So my question is: how to switch back from sqlps to regular ps or how to prevent Invoke-Sqlcmd from switching session. Invoke-Sqlcmd -ServerInstance $server -Database master -Username $user -Password $password -InputFile $file `

ProcessStartInfo and Process in PowerShell - Authentication Error

由 依然范特西╮ 提交于 2019-12-04 13:31:23
问题 I have code that uses ProcessStartInfo and Process to invoke another script, and to return the output of that script. Unfortunately, I am getting errors, and I am unsure how to troubleshoot them. #script1.ps1 $abc = $args $startInfo = $NULL $process = $NULL $standardOut = $NULL <#Previously created password file in C:\Script\cred.txt, read-host -assecurestring | convertfrom-securestring | out-file C:\Script\cred.txt#> $password = get-content C:\Script\cred.txt | convertto-securestring

Winforms multithreading: Is creating a new delegate each time when invoking a method on the UI thread needed?

由 不羁岁月 提交于 2019-12-04 12:41:46
问题 I want to invoke a method that manipulates a control on the UI thread. My code works and I want to optimize. I am referring to this resource on MSDN. According to there, we should do public delegate void myDelegate(int anInteger, string aString); //... Label1.Invoke(new myDelegate(myMethod), new Object[] {1, "This is the string"}); Would this introduce an orphaned delegate object (a memory leak), at each call? When I would do it with a static instance of the delegate like below and then use
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