more than one picturebox is create at runtime. i have the menu strip called "1" and "2". when i click the menu "1", i want the picturebox image to change to whole.png . when i click menu "2" i want the picturebox change the image to half.png. the images is on my resources. when i try to do, picturebox.image = my.resources.whole, i give me this error "Object reference not set to an instance of an object.".
View 1 Repliesi am creating a table in vb.net code (htmltable) with htmltablerows and htmltablecell. I gave on image control but thatr control cant have the .imageurl property, which i need cause i have a handler image.ashx which brings image from the database.
heres' the code -
TD = New HtmlTableCell
Dim img As New HtmlImage()
img.ID = "image_" & rd("ID")
[code]....
on the last line, "img.ImageUrl" i get this error -'ImageUrl' is not a member of 'System.Web.UI.HtmlControls.HtmlImage'how do i fix this?
I'm trying to update pictures boxes with images of controls stored in an imagelist owned by a control. The images stored in the control.imagelist do not showup in the picturebox. I'm working on simplifying the code to post, but for now could use help.If I store the image in a member variable owned bythe control it woks fine.Something to do with persistance of images in control owned imagelist? [code]
View 2 RepliesI have done this below program keeping the picture box property dock=None.And the below code works fine.
Imports System.Drawing.Drawing2D
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code]....
i.e Dock=Fill And i stretched the form in the design mode... now the circles in the image are not proper...I want my program to work with the Dock property set to Fill?
Image is not Showing at Runtime
View 1 RepliesI have a picture box that i want the user to be able to move at runtime of course....he will click on the picture and while clicking the mouse down he can move the picture and when he release the mouse the picture stays at the location ....i searched the net and did not find any usefull articles ..
View 2 RepliesI would like to add an image to a crystal report at runtime.
I am currently doing this using a second data table containing only a byte field and then a blob field on the report. However this feels like a hack and if there is no data in the first primary table then for some reason the image does not show.
Is it possible to add an image with code or another method?
I'm using crystal reports for visual studio 2010. Winforms project. Either C# or VB.
[code]...
I'm trying to change the treeview image at runtime, i'm trying to apply the above code but nothing is happening. the goal is that i have an image i want to change it to another image at runtime.
i have a program i've made a while, and one of the users wants to be able to load his own images to the background instead of the plain grey that is there now. i've searched and searched, and basically can get this working
BackgroundImage = Image.FromFile("C:UsersMeFileName.png")
i just slapped that onto a button just to get it to work as i was experimenting. but that only works for a file of that name, on my computer, in that folder. what i'm looking to do is get it so a user can browse his own directories for images and upload them as the background on the form. and be able to save the settings as well. but so far i have only seen different ways to load preset images that you can load. if it's even possible? i'd assume that you'd use the openfiledialog command, but i'm not that well versed in vb as of yet.
I'm using Visual Studio just to create GUIs for a project. There is no code, only the designs.
I need to convert these forms into images that I can paste into the report.
Is this possible? I dont want to include a folder of all the images.I want to be able to take an image from the resource and export it to a file.
View 3 RepliesI'm developing a standalone application. The purpose of it is to have no installation necessary. I'm trying to keep it as small as possible, and everything contained in the actual program, so that the user can let it sit right on their desktop. I wanted to make it possible to generate an image, preferably something transparent (.png, .gif) of a certain dimension, and export it to a certain folder. I've explored Bitmap library, but I've yet to come up with a successful solution. I'd be very obliged if someone could point me in the correct direction. Here's my current code:
Dim myPNG = New System.Drawing.Bitmap(fileName:="logo.png")
myPNG.SetResolution(xDpi:=100, yDpi:=20)
myPNG.MakeTransparent() 'creates transparency
myPNG.Save("C:logo.png")
with the below codings how can i locate the image in the browser at the runtime
using System;
using System.Collections.Generic;
using System.ComponentModel;
[Code].....
I was wondering how can I select all of the images in a richtextbox at runtime .For example, suppose a file is loaded into a richtextbox control (system.windows.forms) [code]...
View 2 RepliesI am designing an app and I want to attach some pictures to my VB forms. I have used a picture box and the image is only visible before I debug. Once debugging starts, the image disappears.
How do I display the image when I run the debugger?
I know this may sound really stupid, however, I really do not know. Though I have been programming with VB2005 for about the last 4 years or so, I have never used toolstrip at all. Just simply never has a need to, until now. So, I tried it by simply clicking it in the toolbox, which is simple enough, and choose the toolstrip button for the toolstrip as well. I change the button image to the image I have and want, which seems to be piece of cake operation. Everything looks good in design time. However, when I ran the program, I have the toolstrip simply look blank (no show of the button or the image at all)! The button was there alright, as when I clicked it, it responded. However, it just simply not visible at all, nor the image. When I ran my mouse over it, it did change color (which I guess indicate it is there), but no image either.
View 3 RepliesI'm developing a windows application using vb.net (VS 2005 and windows XP) I've set images (transparent png files) to buttons.I do it importing images into the resources of the project I could do it for most of the buttons of this project, but today I noticed new images I set, not showing in run time. In the development form I can see all images on buttons, but when I run the application, buttons with new images are missing. This happens to the new images I import and set as button images. I tried few times new images I set are not showing.
View 18 RepliesHow can i change the background image during runtime? so far, i have an openfiledialog that grabs the location of the .png or .bmp file and then i have this below it[code]...
How can i fix the error that i get "Type system.string cannot be converted to type system.drawing.image"
Is it possible to set a unique image for a particulur cell in a datagridvew at runtime?
View 3 RepliesAny thoughts on what might cause a thread error like this?Error:InvalidOperationException was unhandledCross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on.
Relavent Code:
Private Sub SerialPort_DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
[code].....
How to remove or change the form back gorund image to "none" through runtime?
View 7 Repliesi'm doing a simple form tat could add picturebox during runtime and i could add several picture into it.
View 5 RepliesI have created multiple dropdown list at runtime and populated with data. I also have added an eventhandler to determine the selected value of the drop down list.
The code is as follows :
Dim tbl As New Table()
tbl.EnableViewState = "true"
[code].....
I have a Visual Basic 2005 program which runs fine if I execute the built Executable. However if I start the application in VS2005 debugger it gives a weird error
[Code]...
I'd like to verify if an image control has an image loaded . If it does , I want to unload that image (and load no image) , but if the image control has no image loaded , I want to load an image . Is it possible ?
If ImageMY.Image.Equals(Nothing) Then
ImageMY.Image = System.Drawing.Image.FromFile("C:ImageBlaBlaBla.jpg")
Else
[code].....
Soemone recently downloaded my software and they got this error: microsoft common languages runtime version 4.0.30319.0 how do i fix this
View 1 RepliesI created a new cursor (it works properly, I tried it in windows 7) but is not working for me in the program.I took the Windows cursor (aero_helpsel_xl, from C:WindowsCursors) and it appears to me the same error.i use with this code:
Me.Cursor = New Cursor("Patch..")
The problem say:: "{"Image format is not valid. Image file may be corrupted.
Parameter name: stream "}"
edit: I realized what the problem ... It can read only cur files with 24-bit color and lower - but it shows only two colors: black and white.
I have an app that loads a jpg into a picyure box, then updates exif data in exifworks classThe problem is that when I save the image(from image used for picture box) or class (to save exif data) then try to delete, sometimes I get success, others it won't allow delet I have gone to the trouble of using gc.collect, do events, put the delete in a timer & wait for the delete before continuing & still get the problem
View 7 RepliesWith a button click event, how do I make a picture box image property switch to a random image from the resources folder?
View 1 Repliesi want to save image in ms access 2000 database & i want retrive it in a crystal report in vb.net 2005
View 8 Replies