I have a column ("tblSupply.Date1") in my table populated with dates. If I have value in this column there is no problem, dateTimePicker1 goes to this date. If I have this field empty, I get an error: "Object cannot be cast from DBNull to other types" when I try to open form where dateTimePicker1 is.
Me.dateTimePicker1.DataBindings.Add(New Binding("Value", ds, "tblSupply.Date1"))
Binding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
View 8 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 have two datetimepicker-"OpeningDate" and "ClosingingDate"I need to add a condition such that before entering data in the database it is checked that the "ClosingDate" is always greater than the "OpeningDate"If not then an msgbox will be displayed "Enter the correct data"
View 1 RepliesI support a desktop application containing datetimepicker components.A child form loads within an MDIcontainer, updating components from data retrieved from a SQL table, allowing users to make modifications. A text component hides the current form and displays another form.When the user returns from the other form, one of the datetimepicker component is unchecked and the date is set to the current date. Tracing through this application, I do not hit any code that resets this component.Other datetimepickers located in my current form are not affected.I'm providing the routine used to display another form, and the routine used to return to the current form.
Private Sub txtPubNo_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtPubNo.DoubleClick
Me.Hide()
SetCalledFromAForm = True
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The VB.Net 2005 datetimepicker control allows the user to use the arrow keys as follows:up arrow increases the value (day or month or year)down arrow decreases the value (day or month or year) left arrow goes to the previous section (day or month or year) of the controlright arrow goes to the next section (day or month or year) of the control My users do not like using the arrows and want to enter enter the date (e.g. 9/8/2009) as follows when the field has focus:9 (press tab) 8 (press tab) 2009 (press tab) (goes to next control) They do not like 9 (press right arrow) 8 (press right arrow) 2009 (press tab) (goes to next control) Is it possible to use the tab key in lieu of the left/right arrows? If the user is in the last section of the datetimepicker field (e.g. in the yyyy section of a mm/dd/yyyy control), how will the tab set focus to the next control?
View 2 Repliesthe DateTimePicker in my form appears like this:Attachment 72262 I want to give it an appearence like this.Attachment 72263 i.e,only the date will be displayed in the format of DD/MM/YR
View 2 RepliesI Want To Insert Date Into Sql 2005 But Without Using Datetimepicker In Vb Net 2005 forms every time i do it by using textbox got an erro converting iwant to use textbox like we use it in access with input mask is that avilable
View 1 RepliesOK, before I throw my laptop out the window... I need to insert data into my Access Database from my VB.Net2005 application. I have written and re-written this code, trying everything I can find from the web and I've had no luck. I'm getting a {"Data type mismatch in criteria expression."} error on the ExecuteNonQuery line - I'm fairly certain that it's the DateTimePickers, as I rem them out and the code works fine. However, I've tried everything - changed the column in my database to Text, changed the .Value to .Text, .Value.ToLongDateString, and every time I'm getting the same error. One of the things I read on line was that I need to use parameters in order to pass the DateTime - I need to pass the Date and Time (date format is not important, but I require the hh:mm:ss format for the time). The fields currently default to the current date/time which is perfect, but I read that depending on how you pass the data, you may run into problems if the user does not pick the drop box (leaving it as the default).
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problem 1: By default the textbox property of textbox is empty and if we want to show something so we change the text property of text box. right. Similarly is it possible for datetimepicker? i mean that date is always appear in datetimepicker both at run time and at design time, but i want that when my form is loaded so datetimepicker appears clear just like textbox is empty, and when i select some date then that date is display.
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I have two datetime pickers that when changed call a function that validates the two dates and changes them as needed. This currently causes a loop where the function changes the dates on the datetime pickers that triggers the function again...
So I would like to disable the datetime pickers valuechagned function while the function runs then re-enable it after it makes the required changes.
Private Sub dtpStartDate_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dtpStartDate.ValueChanged
subValidateDate()
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I've got a DateTimePicker control on my form. The normal behavior is for it to allow the user to "move" between value fields with the arrow keys and remember the last date part that was highlighted when the control loses focus. Then, when the control gets focus again, that date part is highlighted. We all know this, I'm sure.What I want to know is how to access the control's selection properties/methods in order to have my DateTimePicker control always highlight the month portion when a user enters the control, regardless of what the last date part highlighted was.
View 18 RepliesI'd like to make blank datetimepicker in vb.net. how to? User doesn't like to see any date if it's not checked.
View 1 Replieshow to do when user point the cursor into the textbox the datetimepicker will display or open...here in my situation i have textbox
Private Sub DtpProjStartDate_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DtpProjStartDate.ValueChanged
Me.txtmydate.Text = Format("MMMM,DD,YYYY", Me.DtpProjStartDate.Value.ToShortDateString)
End Sub
that code works fine but this going to select first the datetimepicker date and after selected the value to pass to the textbox.now i want to do when user select the textbox or point the cursor into the textbox the datetimepicker will display at this time user must select the date and done...
VS 2005 [RESOLVED] biniding data to a datagrid
View 3 Repliescontinuing on from my original post about datagridview.... [URL]
is there any working examples of implementing add/update/delete using the binding source?
i have a datagridview that has a bindingsource as its datasource and i am wanting to provide Add/Update/Delete functionality on the grid itself. Each record has a delete button which when clicked will remove the row and then add/edit is performed in the grid itself
the user then clicks a save/commit button that will then perform the nessecary updates on all rows
my initial plan was to have a copy of the data (iList) and then compare this to the contents of the binding source data to confirm whether to add/update or delete the record
also upon clicking the delete button i cant get it to remove the row from the datagridview. it thought i could do something like this...
Private Sub dgvDocumentTemplates_CellContentClick(ByVal sender As Object, ByVal e As DataGridViewCellEventArgs)
If (e.ColumnIndex = 6) And (e.RowIndex <> dgvDocumentTemplates.Rows.Count - 1) Then
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Above is the code i use to retrieve information out from my database. Column Commissionable will return either '0' or '1'. how is it possible that when i bind it into the datagridview, Column "Commissionable" is set as a datagridviewCheckBox have 0 as 'Unchecked', and 1 as 'Checked'
I have a database that stores images as bytes, per Here
What I want to do is bind the image of a picture box to that value through my binding source. This is what I have:
ProductImagePictureBox.DataBindings.Add("Image", productBindingSource, "productImage", True)
And nothing ever shows up. I figure it's because I am not doing something like Image.FromStream(), but I also don't know how to integrate something like that into that line. I could just re do the image box on row enter rather than bind, but I don't know how to manually pull the data from the binder.
i have an application integrating the an API (autotask web services). I get the data by using a XML query opposed to a SQL query. I'm trying to figure out how to fill a dropdown list with the returned data. Here is my
Dim AccountID As Integer = 29783925
' Query returns Account details for account with the ID AccountID
Dim strQuery As String = "<queryxml><entity>Account</entity>" & _
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I am trying to get a picture box to update with a new picture when I type in a number in the navigator position item box and hit enter. I have tried various methods, but I can't seem to get a combination that works in this way. Could anyone tell me if what I am trying to achieve is possible, and if so
This is the latest variation I tried (yeah, I know...) :
Private Sub BindingNavigatorPositionItem_KeyUp(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorPositionItem.ModifiedChanged
Dim Picture As String
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** note that the <fileLocn> is just truncated for the purposes of this post - it does actually have proper code, so that isn't the issue!
So I have the following
With Me.dgv
.AutoGenerateColumns = False
.DataSource = Info.PESList
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is there any way that i could link/bind multiple binding source to only one binding source navigator?
View 4 Repliesbinding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
View 2 RepliesI use objectbinding to display client data in a datagridview. The datagridview also contains a counry-column allowing the user to choose the country of the client.Unfortunately, databinding of comboboxcolumn does not seem to work if an own business class is used. Using a simple collection instead works well.Copy the sample code into a new windows project and the programm runs fine. Then comment and uncomment the two lines with "XXX" and the code will fail. Why and does anybody know how to make the sample code work by using the business object class(variable named "newClientListVariable" in the sample)? [code]
View 3 RepliesI started programming in VBA, then graduated to VB6, and I am now using VB.NET 2008 Express.I have read, in the various posts, that I should keep Option Explicit and Option Strict both on, in order that I use correct VB.NET code and not VB6.I am trying to do that but am totally confused with the results of one of my programmes that was running perfectly with Option Strict off, but now advises:Option Strict On disallows late binding. To me it appears that I am using early binding, but to be honest I am not clear on the binding situation. I have checked through a number of google items, and a number of this Forum's items without seeing the light.[code]
View 8 Repliesi have this code:Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
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Error 1: Option Strict On disallows late binding.Im using visual basic 2010 express on a gateway laptop thats running Windows 7 OS How do i resolve this error?
I have a listbox and it it I am showing numbers.It should look like this (line by line) 1,2,3,4,5,6,7,8,9,10,11.....but is is showing it like this 1,10,11,...2,20,21...3,30...ow can I make it that it will show it in number order 1,2,3,4,5......
View 5 Replieshow can i show for each datetimepicker value
a datatable with data
that means that when i select a value in a datetimepicker
the data of a datatable also change
what is the code?
My form has a subform with a few fields including a datetimepicker.When I select other items in the subform they save to that particular record within my DB no problem, but when I use the datetimepicker it does not seem to bind.
View 1 RepliesI was wondering what was the proper way to create a If statement for if the datetimepicker date is greater than 2 weeks from the current date.
I was thinking something along the lines of
If (datetimepicker.value > DateTimeInterval.Day(14))
but I am not sure the correct way.