invoke

What calls ListViewItem_ItemChecked event?

I have a ListView, checkboxes = true, View = List. On the start of the project, I go through, do some calculatations and determine if the database is empty and what I should do from there. Well one thing I do is iterate through an array (from a dll) of Report Names and add the list view items to the ListView because we want it to be as...

"press" edit button in gridview through c#

Hi, i'm doing a webshop in asp.net (c#). Is there a way to push the edit button in the gridview through the code of c#? I have a "new" button, that just adds the row, it would be great if that same row would "open" itself for editing without user having to press "new" then "edit"... I know there are other ways to do this, i just want to...

How do I invoke a servlet from my android application?

Hi, I am absolutely new to android development and I need help in know how can I invoke a remote servlet which is gonna send me data from a database in the form of xml. I am a beginner and I don't understand jargon. If possible provide me with a link/tutorial for the same. Any help is greatly appreciated, Thanks! ...

VB.net Invoke a property change in a control

Lots of examples of how to invoke methods, but how does one change a simple property? For demonstration-sake, here's a very simple set of code that should help. Let's say I need to set the visible property from a child form, and thus, it needs to be invoked: Friend Sub activateItem(ByVal myItem As PictureBox) If myItem.InvokeRequ...

Cleaning up code littered with InvokeRequired

I know that when manipulating UI controls from any non-UI thread, you must marshal your calls to the UI thread to avoid issues. The general consensus is that you should use test InvokeRequired, and if true, use .Invoke to perform the marshaling. This leads to a lot of code that looks like this: private void UpdateSummary(string text) {...

How do you return an object as the return value through a RealProxy transparent proxy?

I'm working up a system where I plan on using RealProxy objects to enable intercepting method calls against a set of objects, handling the call, and then returning appropriate results. This works just find for simple return types like strings or ints, but I can't seem to return objects from the RealProxy.Invoke method. Everything works...

Passing function as a parameter in invoke method of system.reflection

I have got a variable which contains function hierarchy like: string str= "fun1(fun2(),fun3(fun4(fun5(34,33,'aa'),'value',fun6()))" // this hierarchy is coming as a string from database I have imported System.reflection and used invoke method to invoke it, but it's only working if I have a only one function fun1. With above functi...

Why would ppl want to use Invoke() (not BeginInvoke())?

I was told that Invoke() is similar to normal method calling... so why would ppl choose to use Invoke and not normal method calling? I tried to search online regarding the issue, what i get is the advantages of using BeginInvoke(), but what are the advantages of using Invoke()? Thanks ...

Update DataGridView from other thread

Hi, I know I need to use some invoke method. But how will this work in respect to object properties bound to the DataGridView? Is it possible to have the DataGridView update automatically when the property of the bound object changes, and at the same time invoke it? The object I want to display is updated through an API event, so it ...

Recursive Invocation: Poor Style?

Below is a rather frightening pattern I sometimes use as a lazy way to do simple invocation. This code makes me feel slightly guilty, even though I'm not sure why. Is this horrifying? Reasonable? Going to blow up in my face later? public void myMethod(object args) { if (InvokeRequired) { Invoke(new MethodInvoker(delega...

method invoked or method called ?

I am not sure if this question is relevant but I see the expression "the method is invoked" a lot , So Is there a technical difference between invoking a method or calling a method or It's just other word for the same action ? P.S : Clearly , I am not an English native speaker and looking for invoke definition on the web didn't help . ...

Calling function from Powershell Cmdlet

I'm trying to create a cmdlet that calls Powershell function. Can this be done? Idea is to have static cmdlet that enumerates a set of data and then calls defined function to do something for each item. I can always copy - paste a base template for the enumaration part, but it really easy to make errors while making modification to para...

Interview Question: When Control.InvokeRequired do you use Control.Invoke or Control.BeginInvoke?

I have had recently one of those really bad interviews, where they play good cop/bad cop with you. Whatever I replied wasn't good enough for one of them and my confidence was shrinking minute by minute. His final question that really confused me was the following: if a control would need InvokeRequired would there be a difference in doi...

Communicate with Flash object from WebBrowser with C# .Net

Hello, I am trying to make myself a simple metacafe uploader, and I am using the webbrowser to do that. Everything was working great with loggin in, navigating to upload page etc... I used the HtmlElement and setAttribute/Invoke to click and set the text fields: HtmlElement password = wb.Document.All["sPass"]; assword.SetAttribute("valu...

invoke a webservice through pl/sql block

How to invoke a webservice through pl/sql block for which we know url,username and password. And how to see the response? Give some sample code... Thanks in advance I have used the following piece of code: CREATE OR REPLACE FUNCTION READ_DATA_FROM_WS (url IN VARCHAR2, username IN VARCHAR...

Error on invoke when the form has closed already

I am trying to display some information on a grid queried from a sql server. The data gathering can take about 10 seconds so I don't want to lock the UI thread. I currently have code like: ThreadPool.QueueUserWorkItem(DataUpdateThread, new UpdateParams(year)); private struct UpdateParams { internal string year; internal Upd...

WPF invoke a control

Hi, How can i invoke a control with parameters? I've googled this up, but no where to find! invoke ui thread This is the error i get: Additional information: Parameter count mismatch. And this happens when i do a simple check whether the text property of a textbox control is empty or not. This works in WinForms: if (this.textboxlin...

How to invoke on the UI thread of a WinForm Component?

I'm coding a WinForm component where I start a Task to do the actual processing and trap the exception on a continuation. From there I want to show the exception message on a UI element. Task myTask = Task.Factory.StartNew (() => SomeMethod(someArgs)); myTask.ContinueWith (antecedant => uiTextBox.Text = antecedant.Exception.Message, ...

Runtime parsing in Android

I am writing a small game for the android platform (HTC Desire) and i am trying to implement a simple scripting language, mostly to set variables and check if conditions are met. So I thought maybe there was a runtime parser in the android library, that way I can put some of the logic in scripts, instead of in the engine. It's quite ba...