VS 2010 - DateTimePicker - Empty Value Of Content
Aug 12, 2011My DateTimePickers are retaining their values from one added record to the next. How do I empty their Value contents after each record is saved?
View 5 RepliesMy DateTimePickers are retaining their values from one added record to the next. How do I empty their Value contents after each record is saved?
View 5 Repliesi'm having a problem w/this conversion code. as the title describes, the first file converted returns w/empty content, but w/the file name.the rest of the files are ok. here is the code, just paste in form and run.. i meant, run the app. ;o)
Public Class Form1
Private btn As New Button With {.Location = New Point(0, 0), .Size = New Size(59, 23), .Text = "txt folder"}[code]...
i just need to convert the files and have them return complete.there is an invisible richtextbox, which i needed to show files being converted in a past project..now, i need to get rid of that richtextbox if possible. too much extra work for a user's p.c...i am not at all familiar with changing extensions, etc..
I have a date field in my dataset, my datetimepicker is bound to it. When the form loads, the datetimepicker is default to todays date if there is no value stored in the database. Right now I'm saving by the tableadapter.update(dataset) method. Is there a way to make it write the default value (today) of the datetimepicker even if the user doesn't select a value because if you make no selection it saves nothing in the database and the user may think it's ok because there is a value (today) shown by default.
If not, what is a good way to display the datetimepicker as empty so the user will have to choose a value, or how do you communicate with the user that the date shown is not going to save?
I'm using the following code to fill a DataGridView:
Dim conz As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:BdadosCV_PARTS.accdb;Persist Security Info=False")
Dim cmd As New OleDbCommand("SELECT * FROM PECAS_IN WHERE Data >= ?", conz)
Dim da As New OleDb.OleDbDataAdapter(cmd)
[code]....
The field 'Data' has the format "dd-Mmm-yy" on the Access database. The code allways fails with a type mismatch in the criteria expression.I already tried
cmd.Parameters.AddWithValue("P2", Me.DateTimePicker1.Text)
but the problem is the same.
Basically, I have a form. It has two datetimepickers which both have the format of "dd MMMM yyyy hh:mm:ss"..However, I want to be able to do some calculations with them and return a format of: "ddd dd MMM yyyy HH:mm:ss" with the milliseconds but not sure how to show the milliseconds. And how to do the calculations..A date and time gets entered in the datetimepicker of "18 November 2010 02:59:07"And in the other one the data may be: "20 November 2010 01:59:07"..I want to be able to find the difference between them - including the milliseconds, seconds, minutes, hours, year, month and date. etc..I have looked through the internet however, nothing uses a datetimepicker [code]I currently have this, it returns the number of different fields, but not sure how I can convert this into a readable time/date.
View 1 RepliesI'm trying to accomplish that every time I click + on binding navigator, datetimepicker get the today date. Not only on the form, but on the binding source also.After previewing saved data, the date cell of datagridview is empty.That doesn't happen when I select wished date manually on the form, only when I enter it in code.
View 10 RepliesI am trying to select records from a table using the following command
SQLStr = ("SELECT ItemCode, PriceSold, WhenSold, WhoSold from SoldItems where WhenSold = '" & DateTimePicker1.Value & "'")
I get the error message
[code].....
is it possible to set the datetimepicker control's borderstyle = none? 2nd question, how to use 32bit api functions in 64bit vb2010 express beta 2?
View 4 RepliesI didn't understand something about DateTimePicker control, on one of the site i found the Private Property Hour() as integer this property was used. And inside it was:
[Code]...
I have a DateTimePicker for a product that has been dispatched to the customer.I would like to select the day with the datetimepicker and add to a textbox a 30 day warranty. I want another textbox to automatically insert and display the date that the warranty would expire.
View 12 RepliesI have a contextmenustrip containing a datetimepicker. Now the problem is that when I choose another date in the datetimepicker the event for that goes through without a problem BUT the event causes the contextmenustrip to go away. The problem is the contextmenustrip must stay shown. I solved the issue with contextmenustrip.show on the end of the event, this works but this has one big disadvantage. I loose all information about the sourcecontrol of the contextmenustrip, and this can't happen.A monthcalendar lets the contextmenustrip stay after his event, but a monthcalendar is too big what cause my menu to be clumsy.
View 2 RepliesI tried to use this code but it will not show in my listbox
Form Load
Private Sub Choose_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If My.Computer.FileSystem.DirectoryExists("C:ACCOUNTSAccountUserlist" +
[Code]....
im trying to empty a datarepeater control because when the user selects the button twice it throws an error about double binding to the same control.i tried setting the datasouce to nothing and stating databindings.clear() but still didnt work?
View 1 RepliesThe data source is an Access 2003 table. I create the table in code and then populate it with 70 rows (each one empty apart from a date field). This unfortunately adds a 71st row (the placeholder for a new table row). Is there a way to stop this row appearing (I don't allow users to add rows anyway, only to edit existing ones, so this final empty row is just untidy and always empty).
Here is the code I use to create the 70 rows:
Conn.Open()
da.Fill(ds)
dsNewRow = ds.Tables(0).NewRow()
[code]....
I have a sample app here I could use a hand with Basically I'm trying to update the TextBlock on the main page using MVVM when the content the frame updates the the property. Please find the code attached below:[URL]..How do i get the button inside the frame to change the variable and update the TextBlock on the parent control?
View 1 Repliesloop through a textbox control content and extract specific content from it
View 20 RepliesI'm looking for a way to create PDF with dynamic content. When you google for it, you get 1000 hits on how to dynamicly create PDF's, but thats not what I mean.
View 6 RepliesI want get content from a website by url be input from textbox1 and output in textbox2 is this post content.
It isn't type html because I search and test but not show this post content, it show all code html pages of url.
Youtube video
demo :
Link content copy : Click Here
Link content source : Click Here
I'm currently in a "course" (mostly self taught with some guidance) and I'm hitting a wall in one of the tests.
The idea is to read out a text file, loop trough the list and replace the content if the item from the text file is found in the list. I've got it fixed up until the replace part:
Dim SplitFirstCase(3), SplitSecondCase(3) As String
Try
FileOpen(1, "orders.txt", OpenMode.Input)
[Code]....
The loop works, but it seems that splitting the selected object isn't allowed. Value 0 is the article number, and based on wether the value returns or not the selected object needs to be replaced.
I have a folder named test. In this folder there are 3 folders(u_test1, u_test2, u_test3). And in this 3 folders are some files.
Now I need to transfer the folders u_test1, u_test2, u_test3 and the content of the folders to a ftp server.
I have tried the following code, but with this I can only upload a single file.
My.Computer.Network.UploadFile(sourcepath, "ftp://" & global_destination, global_username, global_password, True, 500, FileIO.UICancelOption.DoNothing)
How To Change only Month Name programatically in datetimepicker Format Long using visual basic 2010 I am use a DateTimePicker in a form
"Monday, October 10, 2011"
Now I want to Change Only Month Name
Means "...day, September 10, 2011"
also i want to change only year "2011" to "2010" How I can Change it..?
I have a field that I want to check to see if it has a value or not. But my code is not working. I am using:[code]
View 9 RepliesI do not know why this does not work. Obviously, I made a mistake somewhere.
[Code]....
I'm encountering a scenario where I need to see if e is "Empty" before I execute code (don't execute if it's Empty).In a routine similar to the following, I can see while debugging the code that "e" is empty, but I can't figure out how to test it in the
Private Sub RadioClick(ByVal sender As RadioButton, _
ByVal e As System.EventArgs) _
Handles Radio1.Click, Radio2.Click, Radio3.Click, Radio4.Click
[code]....
For some reason, I'm encountering situations where this event is being raised by clicking anywhere on the form. However, when this happens, e is Empty. If I can test for that, then my bug will go away, but I haven't been able to figure out the syntax.
I used to run into problems with this in VB6, too...
If Not ds_Students.Tables(0).Rows(0).Item("ClassDay2").IsNullOrEmpty Then
txtClassDay2.Text = ds_Students.Tables(0).Rows(0).Item("ClassDay2")
End If
This produces "Public member 'IsNullOrEmpty' on type 'DBNull' not found."
And is there a different test for fields of different data types?
1)This is my code.. (below)what i am trying to do here is to insert username and confirmed password into a sql table called login via a pre created form.I have 1 textbox, 2 Maskedtextboxes and a button.
what i would like is if the passwords do not match in both maskedtextboxes for the system to throw out a message saying passwords do not match please try again..which then clears previous content and requires the user to enter details again. once details are correct and system commits the new user details to the table and throws up a confirmation message.
[Code]...
how to count the content of a specific directory?And how do you delete an old file (ex. say your old program that create a back-up. But it has already created many back-ups and now it takes to much of the space in your hardisk.)
View 1 RepliesI work in VS2010 VB.NET and I have a form with a Picturebox (PicBoxContent) and a Combobox (LstMonths) that have all the months names.All I want is to draw a rectangle in the PictureBox with the content of Ms.SelectedItem inside it.
[code]...
All works perfectly but, when I minimize the form or if I call another form in the front of it, when I return the focus to the form, the conten of the Picturebox becames erased...How can I resolve this problem?
I added to my project a *.mdb database file, and I use it with a DataGridView. In this DataGridView I have a name and a web address. It is possible to click on the web address and this webaddress to be opened in WebBrowser1 ?
View 1 RepliesWhile writing an app that uses a couple settings, they occasionally get re-set to empty. I haven't seen any pattern to this, but I do have a vague memory that there are certain circumstances that will reset the settings in a project under development. What are the circumstances that cause the settings to be reset?
View 6 Replies