i have a problem on setting the default value of my date time picker. i have created this application
[code]...
and my problem is i want to set the default value of my DateTimePicker(dtpDate) depending on which date was clicked on the calendar in Main Form. i've been posting this program of mine this past few days now. i just really need to finish this for my upcoming thesis defense.
Is there a way to remove default date for DateTimePicker? It defaults to today's date and I couldn't find a way to remove it. For example - when user pulls up a record and there is no date in the field - it shows today's date which is misleading. We could have the cases when the field is not filled in yet and user might think that it has today's date in it when it's actually Null. Basically I need for date fields to be blank initially. We also have the other date fields that might have dates in it but we'd need to remove the value completely. Again - DateTimePicker doesn't allow it. We tried to use masked field as well but run into the problem where existing values with single month/single day (like 1/1 for example) were converted wrong with MM/dd/yyyy mask.
View 12 RepliesI am querying a date from my Access 2007 database in the format: MM/DD/YYYY It's then saved as a string
Depending on the month and day, it might be 1 or 2 characters. To set the DateTimePicker, it takes it as this format: DateTimePicker.Value = New DateTime(YYYY, MM, DD)
How can I switch around the characters in my string so that it can satisfy the format the DateTimePicker wants? I was thinking about some kind of reader that "consumes" characters until it reaches a delimiter ("/") and then does something with it. I remember doing that in JAVA but not in VB.NET
I thought I had this figured out because it presented no errors, but when i tried to run it, I got this exception error:
Object reference not set to an instance of an object.
I am trying to set two private variables:
Private mdatStart As DateTime
Private mdatEnd As DateTime
I need to set these dates from a datetimepicker (dtpPickup, dtpReturn), but I don't now how to set it. I have tried using:
Private mdatStart As DateTime = New Date(dtpPickup.Value.Year, dtpPickup.Value.Month, dtpPickup.Value.Day)
'Private mdatEnd As DateTime = New DateTime(dtpReturn.Value.Year,
[Code]....
I am developing with VS2010 VB.Net and a SQL '08 dbase. I have a DateTimePicker control that by default displays the current date. If you ignore the DTP control and accept what the default is and save the record, in the database table, the value for the date is 'NULL'. I delete the record out of the database and re-create the record in the UI, but this time, I click on the DTP control and actually click my mouse on the current date or any date and then save the entry and it saves to the database properly. I guess what I am after is if a user instantiates the UI form to perform data entry and accepts the current date in the DTP control without clicking on the control, the value is saved properly to the database.
View 1 RepliesI'm trying figure out the VB code necessay to initialize the DateTimePicker object at program startup.I've got this subroutine, which creates the datetimepicker:
Public
Class
Form1
[code]....
I would like to create ToolStripe on my DGV form with 2 DateTimePicker tools. And when user open form those tools will display by default date:
- first DateTimePicker will show date on 2 month early then current date;
- second DateTimePicker will show current date.
I have a list box on my form with 2 value - "2010" & "2011". When I change the value in the listbox it should set the minimum and maximum value of 2 datetimepickers. Each time I try to change the value I get an error - for example if I change the listbox from 2011 to 2010 I get the error:
"Value of '31/03/2011 00:00:00' is not valid for 'MaxDate'. 'MaxDate' must be greater than or equal to MinDate. Parameter name: MaxDate"
If ListBox1.SelectedIndex = "0" Then
DateTimePicker1.MaxDate = #3/31/2011#
DateTimePicker1.MinDate = #4/1/2010#
DateTimePicker2.MaxDate = #3/31/2011#
DateTimePicker2.MinDate = #4/1/2010#
End If
If ListBox1.SelectedIndex = "1" Then
DateTimePicker1.MaxDate = #3/31/2012#
DateTimePicker1.MinDate = #4/1/2011#
DateTimePicker2.MaxDate = #3/31/2012#
DateTimePicker2.MinDate = #4/1/2011#
End If
I 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 am using the sample datetimepicker code from the Microsoft web site in a databound datagridview. This works fine if I use the combobox dropdown button and select a date. Is there a way to use today's date by default and not specifically selecting it?
[Code]...
i want to restore VB setting to 1st-time-use setting. i spend a long long time looking for default button in VB.But i cannot find anything .
View 1 RepliesI am trying to make my program assign "0" to an empty textbox when the user hits START. I'm trying to use a "for each" loop, but with no success so far. I've tried a bunch of different things, but here is the closest i've gotten (all the items added to the collection are textboxes):
Code
Private Sub TESTSTART_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TESTSTARTButton.Click
Dim value_collection As New Collection
[Code]....
when i click the start button, i get a "mismatched type error" ..
I programatically / runtime created combobox and bind it to a datasource but can not set its default value. Since I am using the Handler of SelectedValueChanged, this is causing the program to mis-fire. Here is the code I am using.
Public WithEvents T_combo as ComboBox
'dictionary holds data to use in other parts of program
Dim T_Dict As New Dictionary(Of String, String)
[Code].....
how would i go about setting a defualt file path for when i open a document? Basically im opening a file from this filepath Dim SavePath As String = "C:VBWorkBook 6Assignment 6Assignment 6Assignment 6Quotes.xml "But if i were to run this program on another computer, how would i change the directory path so it wouldnt be specific to my pc?
View 1 RepliesAfter adding any control or object to form from datasource or toolbox, vb postfixes object type name to that control e.g. for Name field NameTextBox, for Component like Data Adapter say AddresesDataAdapter, AddresesBindingSource and so on.Here i want to ask you that may i change this default way to identify the object i.e. may i set prefixes desired for diffrent objects.
View 7 RepliesGiven a simple class like this:
Public Class clsOB
Implements System.ComponentModel.INotifyPropertyChanged
Private _Frequency As Double
Private _Value As Double
Public Event PropertyChanged(ByVal sender As Object, ByVal e As
[Code] .....
And then I'd like to do something like this:
Dim
o As
New
clsOB(50, 30)
o = 31
how do i make it say that on form load, the first item in the listbox is selected?
View 3 RepliesI have dropdown list with name : list I want the first index to be the defualt value of dropdown list .
how could do I do this ?
Is the default format of ToString dependent on anything server related? Here's the issue: I'm testing and have tested an application on my local machine and ToString(), by default, is returning in a format of "MM/dd/yyyy hh:mm:ss tt", however on our server it appears to be returning as "dd/MM/yyyy hh:mm:ss tt" which the consuming application is not expecting and causing errors.
Dim uvExpireDate = DateTime.Now.AddMinutes(1)
Dim token = String.Format(fmtString, uvExpireDate.ToUniversalTime().ToString(), [various other params])
I am trying to set the "ColumnHeadersDefaultCellStyle" property to the "GoudyHvyface BT" font and it will not change from the default. I am using Visual Basic 2008.
I have set the property properly with no success.
I have tried to set the property in code, using the suggestions in the MSDN and it kept throwing errors.
So I made a little program, and when I run it on my computer the Date format displays as DD/MM/YYYY, but when I run it on some other computers it displays as MM/DD/YYYY. Is there anyway to set the default incoming Date format? Or do I just have to be very careful about how I get/set parts of dates?
View 5 RepliesI want to modify the default Object text size for all objects I place on my form. When I am teaching, it is hard to see the text on the objects. I have changed the code area to 16 pt, but I have not seen how to modify the default font size of the object. They all are 8.8 pt.
View 1 RepliesI am creating a customised version of the ListView control and there are several of the properties that a ListView has that I would like to be set to a different value to the ListView default when a user goes to use my user control.
From what I've found there seems to be a number of people suggesting just set them in the constructor, but to the best of my knowledge that would just mean that the user would not be able to change the properties in the PropertyGrid in the VS IDE.I assume this is probably something extremely simple that I have overlooked.
I have a label printer with the driver loaded with the settings in the driver set I can print the exact label that I want, I have the problem that I need to set the default settings in the driver when the software starts. there are 6 of these printers and the only problem we have found is that different operators like to change the settings.
What I need to do is to set the following commands in the driver so each time the system is started (daily) it loads the settings and works properly.
I need to set
Custom Commands Text, Start, Parsed Text
In the Advanced Setup, turn on use printer settings
Other settings would be usfull but as I cannot set these I do not think I will be able to set others.
I can currently set some of the commands eg,
DefaultPageSettings.PrinterSettings.Copies=2
I have a form that has two text boxs User ID and password. My question user must move cursor to the User ID field. But it should default to that field as that is the only option. How to do it in .net?
View 3 RepliesFor some reason when I place a button on a form and type some text, the text is too big for the button. Descenders are not shown (i.e., the bottoms of g's, p's, q's, etc.). Does anyone know how to modify the default settings of the button, such as the height or font size? Obviously I can change these properties after I place the button on the form, but this gets old. My default font size is 7.8pt San Serif. If possible I would like to increase the default button height and the font size (I like to use bigger text for teaching in class so those in the back of the room can see).
View 8 RepliesCan you set the default button of a panel with a button that is not in that panel but in another content placeholder within a master page? I have tried this but I get the following error:
The DefaultButton of 'pnlTmp' must be the ID of a control of type IButtonControl.
I have also tried setting the panels DefaultButton this way :
pnlTmp.DefaultButton = btnContinue.UniqueID
This gave me the same error.
Whenever I name a new project, a file download window comes up. I tried to reset visual studio to default setting and even uninstalled firefox. I'm trying to get visual studio to behave like it use to. url....
View 5 Repliesi have always seemed to have found the default windows notepad useful. no matter what type of app i create that saves, edits, and does everything notepad does plus tons more, i always seem to end up using notepad one way or another.. until recently..
i finally designed my own custom notepad. pretty much all the features, minus a few, and plus a few.. i like the new features. ;o)
[Code]..
I have a page that is based on a Master Page. The page has AJAX contolled tabs and on one tab I have 2 panels, each with 1 button. Only 1 panel is visible at a time. I am trying to get the button on the visible panel to be the DefaultButton so that when Enter is pressed the click event is fired off. The issue that I am having is that I get this error no matter what I try: The DefaultButton of 'form1' must be the ID of a control of type IButtonControl.I have tried setting the Default Button property of the panel to the buttons client id and to its unique id.
[Code]...