I am using a datepicker control that doesn't like "compareto" is there an alternative I can use (apart from using a bog standard datepicker)
If dpEndTimeDate.Value.CompareTo(dpStartTimeDate.Value) < 0 Then
dpStartTimeDate.Value = dpEndTimeDate.Value
End If
Message: Compareto not a member of 'Date'
I have a VB 2008 application with multiple DataPicker fields. The data is binded to SQL database. On the form load I set the checkBox for each date to false if there is no date in the field. Noticed that if I make changes to some dates for record 1 in the table, save it and scroll to the next record - I see the date that I just changed for record 1 - also on records 2 and 3. Why is it happening? I don't have that problem if I use text fields to display the dates. I had encountered the same problem with different project and just switched to text boxes. With this new project?
View 15 RepliesI need to define weeks for my app. So I want to select a certain week of a month. then I want to tick the days that apply and save those dates to a table.
View 2 RepliesThe CompareTo() method for my class is dynamic, and can range from a simple comparison to comparisons on a number of columns. This is all determined at run time, and it works great.But in some cases, I want any attempt to sort a collection of my objects using the default comparison to just do nothing.
Having CompareTo() just return a 0 for any comparison, to my surprise, doesn't work. The list gets rearranged in some odd, seemingly-random order.Is there a way to do this in the CompareTo() method implementation? I'd rather not handle this up at the collection level by having to override Sort().
What's a sound approach to override the CompareTo() method in a custom class with multiple approaches to comparing the data contained in the class? I'm attempting to implement IComparable(Of T) just so I have a few of the baseline interfaces implemented. Not planning on doing any sorting yet, but this will save me down the road if I need to.
Reading MSDN states mostly that we have to return 0 if the objects are equal, -1 if obj1 is less than obj2, or 1 is obj1 is greater than obj2. But that's rather simplistic.
Consider an IPv4 address (which is what I'm implementing in my class). There's two main numbers to consider -- the IP address itself, and the CIDR. An IPv4 address by itself is assumed to have a CIDR of /32, so in that case, in a CompareTo method, I can just compare the addresses directly to determine if one is greater or less than the other. But when the CIDR's are different, then things get tricky.
Assume obj1 is 10.0.0.0/8 and obj2 is 192.168.75.0/24. I could compare these two addresses a number of ways. I could just ignore the CIDR, and still regard as obj2 as being greater than obj1. I could compare them based on their CIDR, which would be comparing the size of the network (and a /8 will trump a /24 quite easily). I could compare them on both their numerical address AND their CIDR, on the off chance obj2 was actually an address inside the network defined by obj1.
What's the kind of approach used to handle situations like this? Can I define two CompareTo methods, overloaded, such that one would evaluate one address relative to another address, and the second would evaluate the size of the overall network? How would the .NET framework be told which one to use depending on how one might want to sort an array? Or do some other function that relies on CompareTo()?
I am looking how to set events to a webrowser which is being created by the following:
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I try to get how many days there are between two datetimepickers, but get convert error no mater what i do.
View 2 Repliescan I tell a standard Datepicker somehow, that Iif I use the Tab Key, it should jump to the next item?
View 7 RepliesI would like to add to my RadioButtonList a ListItem displaying a DatePicker on select. How do I go about adding this in code please, I mean the DatePicker? The code below is my attempt at this but does not work
Dim datepick As New DatePicker
With datepick
.ID = "RadDatePicker1"
.MinDate = New DateTime(CLng("2006-01-01"))
.SharedCalendarID = "sharedCalendar"
.Width = New Unit(100)
End With
RBtnList.Items.Add(New ListItem(datepick, "Other"))
I'm using MaxDate and MinDate to restrict the days allowed to be entered by the date picker, but the dates outside that range of dates are not grayed out, I would like to be able to gray out dates that are not valid, to clearly indicate which dates are valid. Is this possible?
View 13 Repliesi have problem when display date data from database to display on DatePicker.the error is: "Conversion from string "30/08/2011" to type 'Date' is not valid."
this vb
vb.net
dtPO.Value = CDate(dtt.Rows(0).Item("po_date"))
data in database is "30/08/2011", not error if data "07/04/2011"
I am using the vs2008 ReportViewer control, and I'd like to filter the date range on the report by selected it from (2) DatePicker controls. There are a couple of ways to do it I'm sure, but I would like to write the filter as an expression in the reportviewer designer. How can I target a control(s) on my form to filter the expression through?
View 2 RepliesI am trying to implement the old scrit control but it doesn't work. I am sure there must be a setting somewhere to enable SOM but I can't find where.
View 1 RepliesI have a scanner control as part of an MDI app. Below is the code I have on scan button press.
Everthing seems to work, but no image appears on scanner control.
If I create it just as a normal form, all works fine, it is definately something to do with it being a child form.
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I have a Web Browser Control on a User Control that I load into IE problem is doesn't matter what I do, IE says that I cannot access a disposed control.I read the others have had similar problems with various controls, but here is no real answer out there regarding a Web Broswer control. The problem is on line 34. It happens if yout ry to do anything with the control, not just navigating. Also, the User Control does load in IE fine, however, the Web Browser control is never there no matter what I do.[code]
View 1 RepliesI Currently have events set in my datepicker based of my filter.js file that uses something like:
[code..]
I have these dates stored in a mysql db and I need to pull the dates from it instead of a static js file. Dates can be added, changed, etc.I'm using vb .net
I am using a datetimepicker control to record leave dates. Since i am developing the application for a Ghanaian organization, i found out there is the need for me to format the datetimepicker value to suite the users so that it will look like how Ghanaian usaully write their dates. So i have been able to format it perfectly by using this code
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I have following code on .NET 2.x:
Dim pDate as Date
Dim dteDay, dteMonth, dteYear As Integer
dteDay = Day(pDate)
dteMonth = Month(pDate)
dteYear = Year(pDate)
I use DatePicker to assgin date to pDate.
If I assigned vaule as 8/2/2010, with above code, dteDay = 8, dteMonth = 2
If I assigned vaule as 8/25/2010, with above code, dteDay = 25, dteMonth = 8
I'm using a datepicker for a field on my form, but the arrows are not visible. If I go to the location where they supposed to be, I can click them to change the month, but the arrows themselves are not visible.
View 1 RepliesI have a datepicker where I would like to highlight (in some way) the dates where I have activities stored in a database. I know how to loop through the database, but I canīt figure out how to highlight the dates in the datepicker.
View 2 RepliesIt was there in VB 6. I have some images that I'm going to use a buttons, and I did this in VB 6 with the image control. however, this control doesn't appear to exist in VB.NET 2008 Express. I guess I could use a picture box, but isn't that overkill for such a simple task?
View 3 RepliesIf I bind an BindingList(Of FooBar) to the datasource of my datagrid the controls gets updated whenever I add an item to this BindingList.[code]...
View 2 Repliesi am using VB 2008. And i want to tell you that there are many basic features not yet available with controls. 1] Blank Date (Null Date) with DateTimePicker Control (user may not want to write date for some fields) 2] NumericBox for Writting just Numbers having properties AllowDecimal, AllowThousandSeperator, Min. n Max.Ranges. 3] Multi Column List for ComboBox. 4] 'Contains' type Lookup (finding) in ComboBox and AutoComplite enabled TextBox which finds for the strings in any part of String. Why developers needs to rely on third party control vendors for these Basic Features?
View 5 RepliesI'm currently using this
Public Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Integer) As Short
Public Function GetKeyState(ByVal Key1 As Integer, Optional ByVal Key2 As Integer = -1, Optional ByVal Key3 As Integer = -1) As Boolean[code].......
But even when I do press control, the message box doesn't pop up.
i have a textbox1 in my asp.net webform which shows the server side date i want the user would not select date using jquery datepicker earlier than the date in the textbox1 i m using the following code to show jquery calendar in other textbox2 :
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I am using VB.net as well as Jquery Datepicker for getting dates.
In my VB.net code
<tr><td>
DateOfReceiving:
</td><td colspan="3">
<asp:TextBox ID="DateOfReceivingTextBox" runat="server"
CssClass="pastdatepicker"
Text="DateOfReceiving" />
</td></tr>
I want to allow enter user only todays date or past date with format dd/mm/yyyy. I want vb.net custom validation for that. How to write vb.net regular expression.
I have a datatemplate for my listbox:
<DataTemplate x:Key="CheckBoxTextBoxItemTemplate">
<StackPanel Orientation="Horizontal">
<CheckBox Focusable="False" IsChecked="{Binding IsChecked}" VerticalAlignment="Center"/>
<ContentPresenter Content="{Binding Name, Mode=OneTime}" Margin="2,0" Width="140" VerticalAlignment="Center"/>
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However the items in the list that the listbox is bound to are not all String types. Some are DateTime and a few are Integers. I would like to have a datetimepicker displayed instead of a textbox for the DateTime types. How can I make this happen.To clarify some points the list is populated at runtime using reflection so I don't know which fields are what types ahead of time.
I created a simple user control with a label, and one property that allows me to set its text.I can call the property Text2 and everything works well, but if I call it Text it doesn't work.
I tried both this:
<Browsable(True)>
Public Overrides Property Text As String
[code].....
I am trying to setup a treeview control to display all drives and folders on the PC. So far I can display all drives and folders but the images will not show except rarely. I am using an imagelist with 4 images (index 0-3). The code below is used to load the drives in the treeview control. I have tried using every type of image possible from bmp to png and nothing. I have tried the Appllication.EnableVisualStyles() which I now know isn't needed in vs 2008. I am also having problems with a picturebox in another form that shows nothing but a shadow of the image. I suspect this may be a setting somewhere maybe in vs 2008 but am not able to find one.
Treeview
Dim drive As Integer = 0, dir As Integer = 0
For drive = 0 To oDrives.Length - 1
[code]....
I have a webbrowser control and the following code is in a for next loop. If I use wba = New WebBrowser the code works in the background and I don't see the loaded pages in the webbrowser control. My question is how can I see the results in webbrowser component with wba=New WebBrowser ?
wba = New WebBrowser
AddHandler wba.DocumentCompleted, AddressOf wb_DocumentCompleted
TheLoginUrl = Items(2) & "/test.php"
wba.Navigate(New Uri(TheLoginUrl))
results.Text &= "Login to: " & Items(2) & vbNewLine
[Code]...