Methods of loading a listview and treeview with over 1000 items without delay/flicker,...

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by: Anushya | last post by:

Hi I am using Listview and inherited listview control overriding WndProc & PreProcessMessage in ListView. I need this to customize listview to display only the page the user scrolls to. Since i am populating listview with more than 200,000 items. It is too slow and tried virtual listview. But that doesnot allow me to add images in the listview. So now trying to list only the page user scrolls to.

.NET Framework

6378

ListView Unbearable

by: C# Learner | last post by:

Has anyone else noticed ListView's unbearable flickering? I have a project containing a list-view with the following: - View: Details - Columns: 5 The following code causes the list-view to flicker: private void TestListView() {

C# / C Sharp

6655

CSharp Resize flicker and flashing of WebBrowser TreeView controls

by: Ian Stiles | last post by:

I have tried everything under the sun to get rid of horrible flashing and flickering that occurs on a CSharp form when the form hosts a TreeView or WebBrowser control and then you resize the form. Here is what I've tried so far: 1. Turning off CS_VREDRAW and CS_HREDRAW in both the parent form and a subclass of the control via the "override CreateParams" property (these values were already off). 2. Setting various styles and handling...

C# / C Sharp

2607

Loading and Showing a Form before Adding Items to a Listview

by: Holmes | last post by:

Hello Ran into a bit of a problem here and have now exhausted my resources to getting this working What I am trying to do is load and show a simple vb form with a listbox in it Dim frm_nc_code As New frm_nc_sen frm_nc_code.Show( Well what I want to have happen is it loads the form then shows all of the controls on the form (especially the listview control which should be blank at this time)

Visual Basic .NET

10409

Remove items form ListView and Treeview

by: Progalex | last post by:

Hi everybody! I have a listview and a treeview in a form . With an OpenDialog I let the user select multiple files and then these files are added to the listview with the complete pathname, while they are added to the treeview without the path (only file name). I'd like the user would be able to remove multiple items selecting filenames from the listview. So, items should be removed both from the listview and the treeview. How can I do...

Visual Basic .NET

1671

memory issuse with listview control?

by: Michael M. | last post by:

HI all, When I add items to a Listview control, then clearing the items and adding more items my program seems to allocate a few KB of data and then not free the Memory. I noticed this about half way through writing a program and it's driving me a bit mad. I have posted a sub function below that I used to test this problem: The Sub is called every 4 seconds by a timer object, every 4 the seconds the memory usage of the program is...

.NET Framework

12658

c# ListView selection change

by: Jure Bogataj | last post by:

Hi all! I have a problem (performance issue) with listview. I have implemented an ItemSelectionChange on my listview and put some code in it (I build some toolbar based on selection and update info in statusbar). When selecting one item (clicking on listview) it works fast, without noticing. However if selecting multiple items with SHIFT (approx. 500 items) or selecting with mouse, for each item selected through all listview an event...

C# / C Sharp

8347

Removing ListView items

by: =?Utf-8?B?UmF5IE1pdGNoZWxs?= | last post by:

Hello, In my application I need to periodically remove all current items from a ListView and add a new set into it. The following abbreviated code contains the basic idea: private void FillListViewFromFile(string path) {

C# / C Sharp

1996

ListView Cursor changing & flickering

by: IanWright | last post by:

I'm trying to change the cursor that appears on a standard ListView when the cursor appears over an item. However I am getting a flickering effect as the mouse is changed to a finger cursor, and then back to what I asked it to be. I'm trying to isolate this flicker/changing to the hand cursor but can't figure out where it's occuring or how to stop it. To replicate this... 1) Create a form with a ListView on it. 2) Add an image list and...

C# / C Sharp

8403

Changing the language in Windows 10

by: Hystou | last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...

Windows Server

8930

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...

C / C++

8828

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...

Online Marketing

8677

Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

by: tracyyun | last post by:

Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...

General

7446

AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...

Career Advice

5704

Couldn’t get equations in html when convert word .docx file to html file in C#.

by: conductexam | last post by:

I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...

C# / C Sharp

4227

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Networking - Hardware / Configuration

2819

transfer the data from one system to another through ip address

by: 6302768590 | last post by:

Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

C# / C Sharp

2062

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP