.net - How To Manipulate DataSet
Jan 31, 2012i have problem in manipulating DataSet, how can i filter rows without getting the whole records in tables.
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i have problem in manipulating DataSet, how can i filter rows without getting the whole records in tables.
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Private sub updatelabels()
If me.invokerequired then 'entire form -- ok ?
me.invoke (new methodinvoker (addressof updatelabels))
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I have a form with a bunch of tabs on it, but I don't want them to all be visible all the time.[code]...
View 4 RepliesI am developing an intranet app (so security isn't such a problem). The client wants to drag eml files from Outlook to a folder. I would like put a file watcher control that monitors the folder. When the new file is added I want to run some javascript in the open intranet window. How can the file watcher app communicate with the intranet app (also there may be more than one intranet app open). I am experienced at asp.net but a total novice to Winforms so bear with me.
View 4 RepliesI don't know much about the CIL, except that there is metadata in assemblies that record the type information.Would it be possible to create some reflecting tool that is able to read a C# or VB.NET assembly and change its metadata so that all class members become public?
View 4 RepliesI need to create a code, that allows me manipulate a scanner for to do the functions of scanning and save the image.
View 1 RepliesI want to create and application (I'm a rather Jr. programmer, with just a few apps in production), but I'm not sure where to start.
The app needs to be able to join videos of the same types, for instance, divx1.avi and divx2.avi into divx_joined.avi.
I've already google...err I mean, searched bing for some how to's and what not, but I don't think I'm looking for the right terms.
Where do I start to learn to deal with video streams? Is there a book, SDK, etc?
I'm currently using system.data.oledb but I can't seem to make the update , search, & delete work fine. Are there any other ways on how to manipulate an ms access database in vb.net easier than my method? Here is my code for searching:
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I had a treeview that had checkbox and its content is like file explorer. the checkbox is check when users want to delete that files or directory, after the selection, press the command button then all selection will be process (on this case deletion) how that to be code?
View 2 RepliesHere's my submission to sort a string of characters in numeric, then lowercase, then uppercase.
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Lets say I have a List Box called listBox1 on Form1 and on Form2 I have a button called Delete. Whenever the user presses the Delete button on Form2 it should delete an entry from listBox1 in Form1. How can I manipulate listBox1 from Form2's Delete button?
View 5 RepliesIs it possible to manipulate data in worksheets?[code]...
what i want to do is round off the time in if the time is greater than 6:00 example please look at the data date 8/2 and 8/3. i would like to modify it and make the 6:01 to 6:15, and 6:16 to 6:30 , every 1-15min late the time would round off to the nearest 15mins.. my question is how can i make loop in the column "time in" and every time the program sees a "late IN" it will round it up to the nearest 15mins.
Do you know of any beginner tutorial on how to manipulate(Add, Edit, Delete, Search, List) sql Server database in vb.net?
View 2 RepliesI have the following property in a class:
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The problem is that when I try to set the property like this: myClass.Language = "English" The property is set to "English" and not to "<![CDATA[English]]>" which is what I want. What is the reason for that and how can I fix it? When placing a break point on End Set and use the Watch window to inspect the value of _Language after setting the property to "English" it remains "English" and doesn't change.
I want to create a program which inserts the person's data from a textbox into a form on the webpage named "name" (for example). I want to be able to make them select from a dropdown list named "cat" and what they select is selected on the dropdown form too.
I also want them to be able for the person to select a file on their machine which is entered in a form named "thumb"I'm completely stumped on how to do the above in VB 08. Also, how to use a submit button? On the page, the submit button's code is<input type='submit' value='Submit' />How to manipulate that in VB 08?
Excuse me if this was asked, Google wasn't in my favours today.
I use a Java web app (app/screenshot, you'd need to sign up, but it's just a java web app), however I'd like to automate its functionality inside of a .NET application (C# or VB, doesn't matter, I'd prefer C#).
I've tried searching but unfortunately "Java web" and ".NET" and "C#" etc, don't return me anything even remotely useful. Is it possible to load the page within a control (or through some other way) within a .NET application, and thus act upon the display itself (the data flow will be encrypted, since it's https - so I don't know if I'd be able to read the data coming to and from the java application, I assume not, but being able to read the application would be nice), to be able to select areas, click, read/input numbers and text, etc. I realize this is a pretty broad question, but, it'd be very helpful if someone could offer some advice/insight into this problem.
edit to add: I guess a better question would have been either "Ways to interact with a java web-start app with windows apis?" or "Possible to contain a java web-start app within a .NET app, and interact directly with components of the web app". I'm also wondering if it will be possible to load it into a browser in a form in .NET, although I assume that it would just launch web-start taking it out of the forms control.
In my website i have a script that return the current song that playing from my shoutcast server in a format of: "artist-track", what i want to do is to take that string and split it to 2 strings: artist and track, in order to do that i wrapped the script in server tag like this[code]...
View 3 RepliesI am fairly certain that the error is on my calling the SQL database, but just checking if there is something obvious that I am missing.
Class Form2
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
If (My.User.Name).Replace("server", "") = "u
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<Element_List SubObjectList="Yes">
<Type>2</Type>
<Class>1</Class>
</Element_List>
I have a mdb file hosted on my site [URL]. I am developing an application which will be running on multiple machines and will contact the mdb file via internet. I am not sure how do i go about it as building the connection string for an online connection.
View 2 RepliesBasically functionality i need is:
easy integration with ASP.NET application.user ability to crop image with handle prior to save image optimization from any image type to jpg (compression levels) during the save saving images with proper h/w ratios during the save user ability to rotate the image prior to save ability to translate application to foreign language as it won't be used on international site
I'm new in WPF and C#. I know a lot of VB.NET and I'm used to the way when I call a form object like textboxes, etc. I'm calling it from another form. Now, I'm using WPF, I'm confused. Because I have a Main Window. And I want to add and item to a listbox in the Main Window from a Class. In VB.Net , its just like this.
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I have 10 variables that have numbers at the end in sequential order (e.g. V1, V2, V3, ect.). I would like to perform a function to find what the position is in an array and then add then add the value to the correct variable. Can I combine V & and the number to manipulate the variable?
View 2 Replieswas messing around with web controls and making auto login programs and I have been running across many websites that use java script to code their login boxes for some reason. I was wondering how might I edit the values and click on the sign in button if it is inside of javascript?
View 5 Repliesi want to import data about cigarettes from the internet. i don't know terminology so i'm having a hard time starting.
View 1 Replies.Net 3.5
I have 2 columns in a datagridview bound to datasource. When the user checks off one checkbox, i want to check some business logic after which I set the 2nd check box in the same row as checked as well.
My problem is: I want to check the 2nd check box right after the user clicks on the first checkbox and not only after he tabs away by clicking somewhere else.
Right now, I only succeed runing my business logic in the CellValueChanged or CellParsing events but those only occur after the user leaves the checkbox, which is not desired, I d like to run the logic and show the 2nd checkbox checked right after the user clicks on the 1st checkbox.
I also tried: CellClick event but I don t know how to : when the user clicks on a a checkbox, how to change the value of other checkboxes in the current row during CellClick event . The changes does not take effect in the UI !!!
I have a vb.net 2008 aplication that writes to a Word 2010 file. I can easily change the text in the bookmarks BM1 and BM2. In the file there is also a checkbox (Kryss1) that I need to change between checked an unchecked. How do I do to change the checkbox from vb.net?
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It's been a while since I've programmed in Visual Basic 6 and very recently nose-dived into Visul Basic 2008 and .NET 3.5 Compact Framework. Hence I'm now becoming a bit stuck. This is NOT homework but a self imposed personal assignment. Only person who will mark it is me, being happy it'll work. Trying to recall and refresh my pprogramming skills the hard way.
I have so far written a program under VB2008 that executed on a WinCE device of which I have to have the terminal connected to the computer as WinCE is not emulated under Visual Studio. I've got the thing reading and writing files on the device using file streams so in a nut shell the sample application I have got working that can write data, find data and amend data.
Now here is where I am becoming stuck. I am now turning my sight on using Microsoft's compact SQL server. To date I have created the data table on the WinCE device using VS2008's data explorer so a database has been created and using the data explorer I can read and write data to the SDF file on the device. (Data Explorer talks to the compact SQL server on the WinCE device via an ActiceSync connection.)
I am trying to write a code that will byte swipe data in a string.
The conversion should take a 16 characters string, and swipe the first to characters with the last two, then characters three and four with character thirteen and fourteen and so on, in this format if the input string is
A1B2C3D4E5F6G7H8 then the converted sting will be H8G7F6E5D4C3B2A1.
I run into problem using: left(mystring 2) and right(mystring -2) because the string to manipulate is an input of a textbox so I fail when I try to use cross data with a StringHandling class, and how to incorporate StringHandling into my form class and without it when I try something like
Dim byte1 As String = Left(MyString, 14)I get an
error saying - Public ReadOnly Property Left As Integer has no parameters and its return type cannot be indexed.
I have this application that I haven't created and I don't have the source for. But it's really handy in handling and recording the time I've used on different projects. But it has this annoying pop-up that comes up that contains a window and some debug text I believe. It wasn't done by a professional, it was just a hobby project. Everything is working even though this window appear. So I was wondering if it's possible to "hijack" a window and minimizing or closing it somehow?
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