I'm new to VB programming and I'm trying to develop a program where you browse and select a picture, then it opens in a Picturebox. Afterwards you can choose to open that same picture in paint. My question is, after opening it in paint, making changes to it and saving the picture, how can I make it refresh automatically on the Picturebox with the new changes ? The code I'm using to open my image in paint is the following :
[Code]...
1. i create a widows form application.
2. i place a picture box in the form.
3. i import a picture.
4. I run the program, (there is no code, simply a picture in a picturebox)
when i do this the image automatically crops itself! it zooms in on a piece of the image i have in the picture box. I have tried different picture types eg JPEG, PNG, BITMAP, GIF etc, same result. I have reinstalled visual basic 2010 Express. Still same problem.
I have a datagrid, linked to a database. The user of my program can update the database, in one place, then i want my datagrid on another form to update automatically.
View 1 RepliesI would like the client app being able to refresh the data every 30 minutes.
View 2 RepliesI have tried to write a simple function to bring an Internet Explorer windows to the foreground and then press F5 to refresh it using the dll function: Declare Function SetForegroundWindow Lib "user32" (ByVal hwnd As Integer) As Integer
and then later call this function using:
SetForegroundWindow(processID.MainWindowHandle.ToInt32)
SendKeys.Send("{F5}")
However, when I tried to debug the code, the setforeground does not work.I am using a Windows 2008 (64 bit) so I thought I should use ToInt64 instead. However that did not seem to do the trick as well, when I called SetForegroundWindow, nothing seems to come up.
I'm creating a program in visual basic 2008 that can scan an image straight to a picturebox using a scanner.
View 1 RepliesIt uses a Drawmap() sub with map data to create the map on the game load, but I can't seem to get it to refresh, and then re-draw the map based on player location. For example, if the player walks into a door, then it refreshes the map to show them in a building. Any advice on this? Code below:
Imports System.Drawing
Imports System.Windows.Forms
Public Class Form1
[code].....
I am in need of a method to refresh a webbrowser object's IP address. Until now, I've just change the value in the Registry. However, the webbrowser only gets the IP when it is first instantiated (when it first navigates to a web page). So, it will not update every time I change the registry. I know there is a way to simply change the IP of the webbrowser itself, so that it will update the IP every time the command is run in VB6, however I have no idea how to do this in VB.NET.
View 2 Repliesthe Datagridview is included in first tabpage. first tabpage is the search form and the second tabpage is the record detail view. user is switching and working between those two continuously.
The problem is that everytime user selects the tabpage1 the datagridview repaints itself. there is about 6000 rows in datagridview so it takes about 2-3 sec to paint itself. I know the delay is normal and can't avoid that. but it affects the tabpage selection. tabpage1 isn't selected completely until the Datagridview1 finishes it job. in this time the tabpage1 and tabpage2 gets combined and confused.
is there a way to put datagridview processing in backgroundworker or something that doesn't affect main UI ?
i'm an old VB6 programmer that has just starting dabbling in VB.NET 2010 and my first project is a Usercontrol Button project and i'm running into some trouble with refreshing the usercontrol on events.
For example when you mousedown on the usercontrol i want it to act as if the button is being pressed in, to do this i make the caption move 2 pixels down and to the left. And then reverse this when the usercontrol mouseup is triggered.I think my code is correct but i'm not 100% sure what i'm doing with me.refresh and the usercontrol_paint events.
[Code]...
so I am a little confused. I am trying to refresh my datagrid when I have either add, deleted or edit a row via another form. I have it so my main form shows the datagridview, I have bound my controls to the database and I see all rows, no problem. I also have it setup to double click a row and it brings it up in another form to edit that record. This works. but it doesn't refresh the datagrid when saved. I am trying to follow this thread, specifically this post Refresh Datagridview - Post 2 Here is how I am loading the datagridview in main form
[Code]...
So basically I created Dim gr As System.Drawing.Graphics on my picturebox and I am drawing on it.
Each time I cover my window with anything or move it away from the screen whatever was covered/invisible becomes missing.
As I understand I can do:
CODE:
But I just can't figure out when should I call restore().
Tried on:
CODE:
When should I restore?
I'm trying to make a little app that displays the battery life of a notebook, and also whether it is charging or not.I've got it displaying the battery percentage and if it is running via the cable or battery alone.My problem is that I have a timer constantly ticking to grab the latest information as to whether it is still chraging, what the battery % is like, however for some reason when it first runs it get's the info but then that's it, it won't refresh the info in real time. I'm confused because the battery can deplete but the program only displays what info it got when it was first ran but if I unplug the power cord or plug it back in it refreshes that info straight away. My code is:
Public Class Form1
Dim psBattery As PowerStatus = SystemInformation.PowerStatus
Dim perFull As Single = psBattery.BatteryLifePercent
Dim GraphicPercent As VariantType
[code]....
The bit I've highlighted in red in my code won't work either, basically I've shaped the two labels to look like a crude battery shape and label2's function is to represent the nobly bit at the top of the battery and I wan't that to change to Lime when the battery is 100%.why it won't refresh the graphical output to the screen?
I am working on a small desktop form in VB 2010 and am trying to place a pictureBox with an image in it, next to another pictureBox already located on the form when the user clicks a button.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim tool As String
[Code]....
But for some reason the newPictureBox with image from "ptext" does not show up on the form. When I specify the new Point to be something like, (50,50) instead of getting the first pictureBox coordinates, the new pictureBox shows up in the right place.
Am I using System.Drawing.Point wrong? Or is there some other error that I'm making?
I had issues in refreshing a form that is bound to different tables in a database. Various forms allow the user to change and add and update information on the form via the database. I had created a public sub in that form that the other forms could call, after saving the data, that was supposed to refresh the data on the main form. This was not working so I researched the problem. I came across this page which pertains to Form.Activated: [url]
I placed all of the table adapter fills into this event, instead of in Form_Load, and it seems to work now, when the form first loads, and when other forms update data. My question is does anyone have experience using this and what are the consequences, if any, in using this to reload/refresh the data showing on the form?
Q1: how to play next song automatically? Q2: I dont want to fullname of Song like : d:mp3asshunter - dota125.mp3 (Only Basshunter - dota125 or Basshunter - dota125.mp3)but i need fullname of file to play song cuz my play button code Player.URL = ListBox1.SelectedItem
Q3: About my trackposition bar (name:trackbar2) song moves (back or forward) when i moved trackbar2 scroll (it's ok no problem)but trackbar2 scroll doesn't automatically move.
[code]...
I want to have an email client in my vb using just the web browser of it.I want it to auto log in and will not display the log in page instead it will login automatically in the website.It will show directly your mail inbox or let you in automatically log in your email account.I will give the default password and username that will be use in the email account using a textbox found in my form.
View 4 RepliesAttached is a sample program which demonstrates the problem I am having.
When the user loads the program they are presented with Form1. If they press Button1 without ticking the checkbox they are presented with Form2 which contains a toolstripmenu.
When they select toolstripmenuitem1 Form3 then appears as a child form of Form2.
The problem comes when they tick the checkbox on Form1. It is meant to load Form2 then automatically select toolstripmenuitem1 to load Form3 but instead it only displays Form3.
[Code]...
What must i do for the program to control the value of x automatically? that is, suppose i click on btn1, value of x must become 0; if i click on btn2, value of x must become 1 and so on.
When new record is added, I want the vb to look at the last record in the database, look at its id, add 1 to it (+1) and generate a new number and display it in the IDTextBox.
View 5 RepliesI`m trying to write simple program to choose any country and program automatically tell U on what continent is it... I add on form 1 combo box it`s name "combobox2" and 1 label it`s name "txtcountry" and on "txtcountry" visible is false. I think that when I or any customer choose any country, only after that label will be say on what continen is it I write this code
[Code]....
Visual Basic 2008/2010 - How do I automatically click buttons in a sequence?I have about 15 buttons that automatically goto a website, then it clicks on certain links and does save as page. They are working beautifully, now i have to automate this process. already have a code in place to wait for the website to finish with each button so i am not sure if i can still use a timer to complete this process?
View 4 RepliesIs it possible to have visual studio 2010 automatically add namespaces to classes within folders just like c#?
View 1 RepliesI have template designer form with scroll bar and maximized mode in MID form. Now, when I click on any of the item of ListBox placed at the the middle of the form, form automatically scrolls to the selected item. Is there any way to prevent auto scrolling?
View 3 RepliesMy project is about recipes. I want to automatically create table inside in mysql database when I hit the add button on my project through codes. First is when I input recipe name in the textbox1 then my input will be saved in the recipes table under recipe name column and also create a new table through codes on what i input in the textbox1
Example of my database in sql
texbox1 input will be save here
recipes - id, recipename
And then it will also automatically create a new table in mysql database, create newtable, with id, quantity ,unit, ingredients
Private Sub iadd()
Dim command As New MySqlCommand("insert into recipes (recipename) values ('" & TextBox1.Text & "')", connection)
Try
connection.Close()
connection.Open()
command.ExecuteNonQuery()
[Code] .....
I am building a tool that takes an XML document and replaces XML nodes with a different XML node using .ReplaceChild. This all works great. The nodes get changed to the proper nodes. Where I seem to be having an issue is that the new node is inserted with an xmlns="" attribute, which I am not specifying for it to do, nor do I want as an attribute. How can I stop the ReplaceChild from inserting this as an attribute, or am I going to have to remove the attribute after the node is replaced?
Dim imgSrcNode As XmlElement = xmlDoc.CreateElement("img")
Dim imgSrcAttr As XmlAttribute = xmlDoc.CreateAttribute("src")
imgSrcAttr.InnerText = "./art/" + imageName.Substring(0, imageName.LastIndexOf("."))
imgSrcNode.Attributes.Append(imgSrcAttr)
mmlNode.ParentNode.ReplaceChild(imgSrcNode, mmlNode)
Resulting XML change:
<img src="./art/equJI161298_1" xmlns="" />
XML change desired:
<img src="./art/equJI161298_1" />
I have a DataTable in a DataGridView, one of the columns has data that I want sorted. I can click on the column header to sort it and it's fine. The problem is that I don't want that column sorted automatically when some of the data changes in it. I want it sorted only when I click on the header.
View 3 Replies2008/2010 - automatically download a file from a website that generates
View 2 RepliesI've searched the forums but never seems to find an answer for this one.. I recently connected to MySQL database server "Automatically" in Visual Studio 2010. I want to know if there's a way to determine the connection state for "Automatically created" connections in Visual Studio 2010. I know how to do it for"programmatically created" connections but just want to know how on the auto-generated ones.
View 1 RepliesI have a website which has a section under maintenance with a button called create a new file - when you click on this button it does a backup and generate a filename on the same page called *.tbf - the filename changes each time you click on create a new file
[Code]...