I am trying to find a way to show a large amount of data that spans across multiple forms and text boxes. I am making a somewhat summery of the input strings.
View 3 RepliesI have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
View 8 RepliesI have 7 textbox's.
Names are
textbox1
textbox2
[code]....
I need to do
For i = 1 to MyVar
textbox(i).enabled
next
Am currently piecing my programm together and working on structure. My plans will have me running multiple forms,and my question is this. When I have ,say ,on form1, a "TextBox1" and on another form a TextBox with the same name,will I have conflicts when I access data across forms. Should I be taking care to make sure textboxes and buttons names aren't being repeated,or will VB know what I want?
View 11 RepliesI have a button that will run a video file in the Windows media player box, first up, is there a way for that video to display full screen on a secondary monitor?My plan was to have a large form that spread across the two screens with the control buttons on one side and the video on the other, is there an easier way to do this? Otherwise I think I might have to look at making an individual form for each screen and then somehow getting the buttons on say form1 to do the work on form2. Again is this hard to do?
View 2 RepliesI'm searching the same title "Large amount of data in ComboBox" last 1 and half years but I could not get what I'm expecting! Here is my case, I have 20 thousand unique products, I just fill into dataset & bind only two columns in the combobox for searching & validating the product if it is exist in the product list or not.
1) I read about dataset but all articles are described "Dataset only for few records because it is sitting in-memory". If I fill few records (100 or 1000 products) into the dataset, how can I search & validate REMAINING (NOT FILLED) products?
2) Is there anyother way without filling into dataset and bind to combobox? Can anyone suggest me which is suitable for me?
I'm working on a project at the moment, where all the data being loaded is kept in an XML file which until now have been rather clean with structures such as
Code:
<Textures>
<Texture id="1">TerraingrassDirtNW.png</Texture>
[code].....
How do I display a large amount of fixed text (about 400 words) in a form. I also need to have scroll down bars.[code]...
View 1 RepliesI tried to follow this advice, but I still run out of memory.
[URL]
Basically, I am reading all the bytes of a 1 gb disk and I want to try and do a md5 hash on it. However, when following this example, my cryptostream gets too large a System out of memory exception.
Is there another way to do the md5 hash over some much data?
I am currently reading it into 10 million bytes arrays at a time. Can I hash the first array, and then use it as a seed for the next array, and so one, like you might do to a CRC32 calculation?
I am trying to show a large amount of data in gridview but the problem is that everytime data increase the gridview row size increase automatically.
View 4 RepliesHow to do: on Treeview nodes click wanna show data in several Text boxes utilizing the below sample code
Private Sub Form_Load()
' Visual Bbasic 6 Sample Window Application
' To run this project Add 3 differnt text boxes and
[Code].....
I have a vb.net Windows application that calls a vb.net Web Service function. Both the vb.net application and Web Service have been in use for over 5 years and have worked well. The Windows App builds a text file consisting of a number of inserts into an Oracle table, followed by a call to an Oracle package. The Web Service call uploads the text file to the Web Server, loops through the statements in the text files and executes them. It then does a Select statement to put the resultant data in a string which is passed back to the calling program. We have both people on our local area network as well as external users where the call to the Web Server is over the internet.
The data string returned is the pricing for each of the lines inserted in the text file, separated by asterisks. Normal use of this call has anywhere from 1 to a few dozen lines, and the program works fine for this for both internal and external users.
Our problem right now is one external person is attempting to price a job with 491 individual line items. At first it would not price, whether the job was priced from a computer at the customers site or one of our internal people on the LAN. The problem turned out to be the timeout value was not long enough (it was set at 2 minutes, this job takes 5 minutes) so changing both the Timeout value in the Web Service call as well the httpRuntime executionTimeout value in the web.config file on the web server addressed the problem, but only for our internal users on the LAN. Our external customer wants to be able to price jobs of this size going forward, and I am at a loss as to why it errors on internet connected machines but not locally connected machines. Our customer is in New York, We are in Wisconsin, and I am able to recreate the error condition from my home computer.
The other thing is, if I create a VPN connection to our server from my computer at home, this job will price (again, it takes about 5 minutes) but if I disconnect the VPN connection, it gets an error after approximately 3 minutes, http 404: Not Found.The customer can otherwise price all of his other jobs with no problems, it's only this one, very large job that gets the error.
I have 3 check boxes on a form and am trying to code them to change the font in combinations of Large Font,Bold Font, and underline font.I coded the bold font check box and large font check box but cannot get the Bold and large font to work at the same time.
View 5 Repliessaving data from a text field and multiple combo boxes to a file on a server in visual basic 2008
View 1 RepliesIm trying to make a program that allows the user to view additional information via moving the cursor over the label to view (make visble) additional information, in the form of text boxes and/or picture boxes. How will i go about doing this?
View 6 RepliesI have a form which contains a large number of textboxes covering numerous panels/tab controls and I would like to have the user only have one text box visible at a given time and when the user clicks on the screen to another label with a corresponding text box I would like that to appear and the other currently open to disappear. Currently I have the following loop that goes through and changes the visibility of the appropriate controls unless it is the name of the control I am looking for:
'This is used to iterate through all the controls in the form and ensure the visibility of all other controls
' than the active control is set to false.
[Code].....
If I have a large number of classes, each similar to the other in certain aspects (they all share a common base class, but each does things differently), and I need to create Windows forms for each to allow easy changing of their values through a GUI? Create one matching form for each object in VS' forms designer, Or Use code to create the forms dynamically at runtime.
#2 makes the most sense to me, because a lot of these objects will share very common features of the form, notably "Ok" and "Cancel" buttons. But one object might need to draw a textbox on the form while another might need to draw a combobox. Not to mention, if I want to put icons on the "Ok" and "Cancel" buttons, I'd have to do this for each copy of the form in designer, and that sounds like it could get out of hand quickly.But is drawing forms through code sane? VS' forms designer is pretty sophisticated and designed to make life easier. Am I wise to consider ignoring its functionality and diving into the trench warfare of forms design through code? Or are there examples of automating form creation based on an existing object's properties?
visual basic 2008 express
access 2007 db
I am attempting to fill a form with multiple rows from an access table based off of a parameterized query. My query works fine but I don't want to return one row at a time, I want to return all rows that match my query in multiple text boxes. I know that I can use a datagrid view to accomplish this, but I would prefer the look of a textboxes on a form. I have read through many books and searched the internet forums but think I may just not know what to search for as nothing has worked yet. Can anyone point me in the right direction. So far I have tried setting the text box value to the row().item(), creating a different dataset for each row, and even setting variables for the results of the query to then be passed to the text boxes. Since none of this work, I don't really have any starting code to post. If I could just get a starting point I could work from there, so don't feel the need to code anything for me, just set me in the right direction.
I'm in the middle of creating an application that will be used to input customer information whilst the customer is speaking to someone over the phone. This involves the customer giving the employee information such as name, address, postcode etc and the employee inputting that information into text boxes and combo boxes that are in the application.
What I would like to be able to do is after the customers information is given over the phone, I need to be able to send that information to a database which will probably most likely be done by button click. In this case, I'm using Microsoft Access. I'm also hoping that I can do this within Visual Basic coding.
The database is set out with multiple tables which include a customer table and a ticket table and both have multiple fields such as first name, surname in the customers table. Both of these tables are in use with the information that the customer gives over the phone.
I've already asked on other forums and people are where replying giving me third party programs that I could use to implement this, something I don't really want to do.
I'm in the middle of creating an application that will be used to input customer information whilst the customer is speaking to someone over the phone. This involves the customer giving the employee information such as name, address, postcode etc and the employee inputting that information into text boxes and combo boxes that are in the application.
What I would like to be able to do is after the customers information is given over the phone, I need to be able to send that information to a database which will probably most likely be done by button click. In this case, I'm using Microsoft Access. I'm also hoping that I can do this within Visual Basic coding.The database is set out with multiple tables which include a customer table and a ticket table and both have multiple fields such as first name, surname in the customers table. Both of these tables are in use with the information that the customer gives over the phone.
I'm fairly new to VB.NET, and I'm working on a text editor with a tabbed interface. I deal with large text files. Should I have each tab / text document open up in a new thread or a process? I basically want the entire application to always run fast as the text editor is just one part of it. If I have several large text files open I don't want the rest of the application slowing down a bit.
View 2 RepliesI ran into a problem where the listbox is taking awfully long time to show up. This is not the same in java(It took very very less time - one second max). So, is there any remedy to this??, any other form control??, or some other way?? imports System.Threading imports System.Windows.Forms
[Code]...
I have written a code and tried linking up groupboxes from my input form called input.vb and the output form called results.vb.
[Code]...
I have used the above codes to access groupboxes from both forms. However, at run time I get errors saying "InvalidCastException was unhandled" and below that it says "Conversion from string to DOuble is not valid". This error points to a value in a group box that is actually hidden or disabled.
Just a doubt: if I have large amount of image files for my app, is it ok to store them in the resource file ?
Will those files be saved in a single resource file ? Will that cause any problem to the performance of my app ? When I try to access a image file from the resource using code, will it load that file only into the memory or the entire image contents from the resource file ?
I'm loading an image, then getting size and such info from it, and loading the image into a picture box. Now it works and all, but I noticed it uses a large amount of memory. I'm doing: img = Image.FromFile(file)Where I load the image, 'file' being just a string containing path to an image on the hd. After that, I get the size and frame count (if any), and load it into a picture box: The image I've been testing with, is a 6600x5100 3.5MB JPEG, which can be downloaded from url...Watching task manager, when the app loads the image, it takes up about 104MB of memory. I've tried doing img.Dispose after the above line, but it brings up an error. If I put a button on the form with img.Dispose in it, and click it after app has loaded, it drops down to about 6MB of memory used. Loading the image directly into the picture box using .Load or .LoadAsync, after disposing img beforehand, still ends up with a huge amount of memory used.
So I'm wondering if theres a way to check if the picture box has fully loaded the img, so then I can Dispose the img and free up the memory. Or maybe a better way all together of loading an image into a picture box, and/or getting size & frame count, without having to use up that amount of memory before freeing.
how to permanently save to text files then re-open all of the information again using SFD and OFD. Now my teacher has come back at me and said that i need to be able to save the information from multiple text boxes and have the text in certain labels to also be saved into the one text file (the labels need to be done because it is a database and these labels are like the fields and the right text box needs to match the right label)
View 39 RepliesSo i watched this video here. [URL]
And i want to do this for like 40+ text boxes, how can i do it?
I need to to able to save multiple text-boxes and a combo-box to a text file. the thing is, when I go to save, I check out the .txt file manually and its saved all in one line, no spaces. when I go to "read" it with the 2nd part (<-----this is a 2 part Challenge) it even reads all from that one line in the text file. What i'm asking is how can I make my text-boxes saved in the text file on different lines. [Code]
View 10 RepliesI have 5 combo boxes that need to show the same list of items that come from a single dataset table. I have managed to bind the datatable to the combo boxes no problem at all.. but when I run the application and select an item from one of the combo boxes all the others change to the item I selected. After some research I believe that this problem is something to do with using the one datasource so I have tried assigning the dataset datatable to 2 different variables and used them as datasources for 2 of the comboboxes but the same still happens.
A work around to this I can see is to call the same methods and SQL select statements 5 times over to get individual datasources for each combo box but this doing that sounds crazy to me. how I can get around this easily? Code snippet below shows 2 combox boxes and their datasources. I'm using VS2005, .Net 2
ComboBox1.DropDownStyle = ComboBoxStyle.DropDownList
ComboBox1.DataSource = AllergyListDataSet.Tables("ListOfAllergies")
ComboBox1.DisplayMember = "Condition"
[Code]....
I am making an inventory program in which there's an ItemMaster and Sales Form. Currently there are 15000 records of items(increasing daily). I want to display all the items in the sales form so that the user can select an item from the list for billing, and also in the itemmaster so that if the user wants to edit any item then he can select it from the list.
I can make a common list form for both sales and master, but i have to load the data from the database into the list every time the list is displayed(which is taking lot of time), so is there an better way to do it.