I am a self taught "developer". I use the term loosely because I only know enough to make myself dangerous. I have no theory background, and I only pick up things to get this little tool to work or make that control do what I want. That said, I am looking for some reading material that explains some of the theory behind application dev...
Is there a way to include examples for multiple languages (C# and Visual Basic, for example) in XML documentation? I'm using SandCastle to build MSDN-style documentation and would like to include usage examples for a few .NET languages. ...
Imagine I have a rectangle say 400px x 300px. Then let’s say I want to load an image in that. All of this is very easy using Sytem.Drawing.DrawImage. But then I want to leave the left hand side as 300px but change the right hand side to 250 px. I can draw the box using 4 DrawLines but I don’t know how to squash the image into the ne...
I have a strange problem with a DataGridView I'm using which is bound to a table in VB.net I've added a checkbox column to allow a user to tick a bunch of rows that I can then loop through and save off to a different table. All the checkboxes are enabled by default. So it's really a case of unchecking the rows which aren't required. Ho...
I am looking for a key/value type datastore with very specific requirements. Anyone know anything that will work? Needs to be a component of some sort. No additional installation needed. The datastore needs to be on the local hard drive. I am using VB.Net for a desktop app running Windows XP through 7 so it needs to callable by that en...
Hi, a lot of my programs require the ability to write files to the hard drive. When I first made these programs for XP they worked great. Now I'm less ignorant about UAC (got a new laptop recently). And for future customers...I've noticed the potential for a LOT of annoying error messages....and quite frankly if the program can't write d...
I've googled for creation of namespaces and found some very useful examples, what these examples didn't have is how do I compile and implement my created namespace on my system so I can include it from my various applications. So for example, if I create a namespace to load a config file from my application path and insert it to an arra...
[using VB.NET, but I can easily read C# code in responses] I have a class called QuestionClipboard with ALL shared methods/properties. I previously had a QuesitonClipboard.doesClipboardHaveContent function that returned true/false if there was a Object on my 'clipboard'. I'd prefer to implement a Dependency Property so I can allow t...
I 'm not familiar with VB.NET at all. I need to convert this function to C#. Can anyone please give me a hand? Public Function GetAppGUID(ByVal sectionId As String) As String Dim hexString As String = Nothing Dim i As Integer Dim guidlen As Integer guidlen = 16 If sectionId.Length < guidlen Then sectionId ...
Currently I'm using the IHTMLDocument2 and IHTMLElementCollection to parse HTML, is there some way to parse it using some sort of xpath/selectors, something like elements = find_html_elements("a .link[rel=100]") ? ...
Hi, I have complex UserControl (grid, edit controls for grid, etc...) and I want handle CTRL+C keyboard shortcut, however I don't want disable a native functions by edit controls (textboxes, comboboxes, etc...). If the CTRL+C is not handled by other inner controls I want handle it by myself (copy whole row(s) from grid, etc...). I trie...
Hey Guys We got a legacy vb.net applicaction that was working for years But all of a sudden it stops working yesterday and gives sql server timeout Most part of application gives time out error , one part for example is below code : command2 = New SqlCommand("select * from Acc order by AccDate,AccNo,AccSeq", SBSConnection2) rea...
The ContextMenuStrip tied to the ListView control. However, the right click option (edit) appear where ever i click on the ListView area, this gives me exceptional error because the implementation of edit can only cope with a selected row. I only want it to appear when on a selected row (blue highlighted row). How can i do it? ...
I'm using NumericUpDownExtender inside updatepanel which is inside repeater displays comments on article. I use NumericUpDownExtender as thumbs up/down and I need to disable it after first click so that no one can rate the comment more than once. How can I do that? Thanks in advance for your help! ...
Hi dear friends, I have a ListBox (MyListBox) on my screen, and a Textbox (MyTextBox). The ListBox is filled with a List(Of T), which are all custom items. Now I try to do this: The ListBox' datasource is the List(Of T). Now when an Item changes I want the textbox to be updated to a particular property of the selected item in my Li...
Ok this is frustrating... The code below works "correctly" as far as sending the email address to the SaveEmail URL and it gets saved correctly each time I change the drop down. However it only outputs the "Successful" message once, no matter how many times I change the value in the drop down. The "data" that is returned is "Successful"...
I understand visual programming languages to be those languages that allow the programmer to to manipulate graphical--rather than textual--objects onscreen to build functionality. The closest thing I see in C#, VB, etc. is RAD controls, but that is just composing UI and the very simplest functionality -- it has nothing to do with the la...
This seems super weird to me. I have a callback handler done in VB which works fine with this code: <!-- Div Outside Form --> <div class="container"> <form id="querydata" runat="server"> <asp:DropDownList runat="server" ID="myddl" AutoPostBack="true" OnSelectedIndexChanged="myddlhandler"> <asp:ListItem>Hello</asp:ListItem> <asp:ListItem...
Hi, my issue is very similar to: http://www.dotnetmonster.com/Uwe/Forum.aspx/dotnet-vb/54944/VB-Net-project-throwing-errors-when-executing-Clean-Solution Typical errors: Unable to load referenced library X Type IWshRuntimeLibrary.WshShell is not defined. Interface System.IDisposable is not implemented by this class. Namespace of type ...
I've an app wich alows the user to drag drop images into a picturebox. It works on xp, it doesn't works on vista and seven since the UAC could cause the problem. I've tried running it as administrator and still it doesn't work. ...