We have a website that runs .NET Framework 2.0 with Ajax version 10618. But as it is, that is an old version of the dll, so we planned on switching it to the "newest" version of it for the .NET Framework 2.0, the AjaxControlToolkit version 20229. On our tests, we detected a problem with the ASP control RegularExpressionValidator, whic...
Here is the exception: "Input string was not in a correct format." Here is the line of code: .Add(Integer.Parse(LoanData.Item("IsApplicantRaceAmericanIndian")).ToString) ...
Calling OnPropertyChanged for an ObservableCollection only works when there has been some change to the properties of the collection, not the objects it contains (add, remove, clear, etc). Is there any way to notify the View that there has been a change to an item within the collection? ...
Is there a efficient way to provide an Enumarable<SomeType> or a collection that implements INotifyCollectionChanged but that can only be changed from the inside of the providing class. The following example shows what I mean, but has the disadvantage that the caller can cast the IEnumerable<SomeType> back and then manipulate my intern...
If you create a COMClass, I've noticed that the values in the XML Summary tag do not show in the object browser of VB6/VBA when you reference the resulting tlb file. Is there a way to have these values show up? ...
I've been thinking about my options when it comes to events in vb.net. What I'd like to do is to track events that are fired in an application without explicitly declaring them with 'handles' sub. Here is a pseudo-code: Private Sub HandlesAllEvents(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles all.events Selec...
I would like to restrict what they see in the file upload dialog, which is set to "All Files" by default. I understand how to validate that they only uploaded a certain file type, that is not the question here. I would just like to know how to default the file type in the file selection dialog. Is there any way to change this to "PNG on...
We currently use the following code to create an email in Outlook so that the user can type what they want in Outlook, then when the email is sent, the system prompts them to see if they would like to save the email. Dim objOutlook As Object Dim objMessage As Object Dim objInspector As Object ...
I was recently asked a weird question in an interview here it is; Private Function sorttable (ByVal dt As DataTable, ByVal sorttype$, ByVal sort_direction$) As DataTable Dim dv As DataView Dim dt2 As DataTable dt2 = dt.Clone dt2.Merge(dt) dv = dt2.DefaultView dv.Sort = so...
I have a Class that is defined as Public MustInherit Class Entity(Of T As Entity(Of T)) And various classes derived from it. I would like to have another class accept all of the derived objects as a property, but I cannot seeem to find a workable syntax. If it were a parameter of a sub, I could say Public Sub Foo(T As Entity(Of T))...
This is the code I'm trying to develop: Public Structure Statistic(Of t) Dim maxStat As t Dim curStat As t Public Sub New(ByVal pValue As t) maxStat = pValue curStat = pValue End Sub Public Property Level() As t Get Return curStat ...
How would one go about associating a file type with his application? I know how to read the command line arguments but I am not sure how I can "register" the file extension with Windows. Furthermore, my application is a stand-alone executable, so how would I keep Windows up-to-date on the location of my program? I did a fair amount of s...
Hello, Please help me in reading this multilevel xml to a RadGrid. 1) I am planning not to use Aspx for this 2) The node named Item would eventually change as per app Requirements. So, I don't want to restrict my xpath to something like "//Product/Item" <Products> <Product ProductID="1"> <Item ItemID="1"> <Pr...
What is the proportion of .NET developers who do WinForms/desktop development vs ASP.NET development? Is there very much overlap? Are they very different skill-sets? ...
Hi to all I have 3 forms, one frmMain - main form, second is frmUserType- childform, and the last frmCreateUserType. In the main form I have a menu item to open my frmUserType, In this form I have a button to open another form which is my frmCreateUserType, In this form I have a button to add records then update the listview in frmUserT...
In aspx page: if (<%= Not Me.ThisVisa.PassportExpirationDate.IsNull %>){ Returns error: Microsoft JScript runtime error: 'True' is undefined I tried this: if ("<%= Me.ThisVisa.PassportExpirationDate.IsNull.ToString %>" != "True"){ ..but I get a compile time error: Error 5 Option Strict On disallows implicit conversions...
My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area d...
Hi... I need to calculate page wise sum and grand sum in my report.rdlc page. i did'nt find any formula field in report.rdlc page. How should i do this?can any body help me out with coding ? ...
Hi! This is incredibly urgent, I need to present this application in 3 and a half hours. My application checks against a data source to see if a value exists in the database and changes values depending on whether or not the value in question was found. The problem is that I've run the sql query with the value in question in SSMS and n...
Hi! A while ago, I wrote a web-based guestbook application that wrote it's own database. My code was very amateurish, but, as it was my very first publication, I was very happy with it. Only about a month after I'd published it did I realize I'd made a huge mistake in the code. I've only ever connected to a specific named instance of ...