I have a feeling this is a very simple thing that I'm overlooking.
I have two ComboBoxes that allow users to search for/select the record that they want to view. One is filled with Customer Names and the other is filled with Customer Numbers, so the user can look for a particular record by either selecting the Name or Number.
Each ComboBox is filled by a Data Table returned from a SQL Server database.
Each ComboBox has DropDownStyle set to DropDown, AutoCompleteMode set to SuggestAppend and AutoCompleteSource set to ListItems.
The user can either select by clicking the DropDown arrow and then clicking on the item they was or they can begin by typing and the ComboBox narrows the number of items in the list based on the characters the user is typing.
Using the mouse to click on the item in the list that they want works fine...it fires off a routine to retrieve the selected item from the database.
However, when the user types in the desired selection and presses ENTER, nothing happens. They must click the DropDown arrow and click on the item in order for the program to pull the appropriate record.
How do I get the ComboBox to pull the appropriate record when the user hits enter?
I'm using Visual Basic.
From the sounds of it, you need three events.
You need to use a timer to know when the user has stopped typing. To do that, you need one event would be when that field they're typing in has it's value change (<control's name>.TextChanged). That would start/restart a timer ticking (so that the user has a couple seconds to pause before the next event fires).
The next event would be the Tick event for that timer. That event would stop the timer, and then give focus to the right field so that when the user hits ENTER, they're not hitting ENTER in the field they've been typing in. You'll need to write a function to look up the right item in the ComboBox and call that.
Then you'd have a third event, either KeyPress, KeyDown, or KeyUp on the ComboBox itself. I'd lean towards the KeyUp to avoid issues if the user holds ENTER for whatever reason. That'd be what selects the item.
As a final FYI, I'm assuming you're using Visual Studio to write your code. If not, you should, and if you are/once you are, you can select the field you want to work with in the drop-down at the top left of the editor and then look at the associated events in the top right drop-down.
Thank you to JMichael for getting me on the right track with this one. I'm posting my solution here just in case it helps someone who has a similar question in the future:
The code that I added to the ComboBox's SelectionChangeCommitted event needed also to be added to the ComboBox's KeyUp event:
Private Sub cboPolicySearch_KeyUp(sended as Object, e As KeyEventArgs) Handles cboPolicySearch.KeyUp
If e.KeyCode = Keys.Enter Then
GetSelectedPolicySearchRecord()
e.Handled = True
End If
End Sub 'cboPolicySearch_KeyUp
The GetSelectedPolicySearchRecord() sub contained all of the information I needed to call my SQL Stored Procedure to select the data for the record that the user selected in the ComboBox.
Previously, this was only being called from the ComboBox's "SelectionChangeCommitted" event which is executed when the user clicks the drop down and then clicks a policy number from the drop down list.
I needed to add the same call to the GetSelectedPolicySearchRecord in the ComboBox's "KeyUp" event for when the user presses enter.
Related
I am working in VB.Net programming user functionality into a DataGridView. Currently, I am trying to allow users to update the data that is being shown in the DataGridView by editting what is in the Cells.
Right now I have a method to detect when the user begins the edit the cell:
Private Sub dataTable_CellBeginEdit(ByVal sender As Object, ByVal e As DataGridViewCellCancelEventArgs) Handles dataTable.CellBeginEdit
oldCellVal = dataTable.Rows(e.RowIndex).Cells(e.ColumnIndex).Value
End Sub
The point of the method is to store the old data in the cell in memory so that it can be restored later if the user decides not to edit the cell.
Now I am not sure how to set up the method for when the user completes the edit. I know there is a CellEndEdit event I can make a Handler for, but in that method how would I detect how they left the Cell?
I'd like to set it up so that if my User presses the Enter key, only then is their edit submitted. If they use the Arrow Keys, or the ESC key to exit the Cell, they instead get a "Would you like to stop editting?" prompt. This makes it sound like I need a keypress event, but if I do that kind of event, how do I properly detect the Cell that was modified? I need the know the row and column index of the updated Cell in order to properly submit the changes.
So how should I go about doing this? KeyPress or CellEndEdit? Or is there something else I haven't considered?
I have a sheet, where one of the columns has 10 checkboxes in one where user can select multiple options.
Is there any way to keep this set of checks unchangeable after user has checked on needed options? Or any other way for user to select 1 or more options (not with list drop-downs)
My situation is like this:
For each row, the user has to select a range of checkboxes (labels of checkboxes tell about type of documents attached for that specific record) There is no further action, just check and save. Is there any macro, or any way to do this beside the actual way (with checkboxes)?
Private Sub CheckBox1_Click()
CheckBox1.Enabled = False
End Sub
I will explain you the complete process.
Add a checkbox Then
Make sure the Design Mode is Selected
Right Click on the CheckBox and click on View Code
And there place this code Make sure the CCheckbox name is according to your checkbox
Now whenever the user Checks the checkbox it will get disabled.
I have a combobox that is of type dropdown, i.e. allows user to either select something from the list or to type in a new value. Based on this combo value, other values are selected in the form automatically as they are databound.
Customer_ID is the field that needs to be picked or typed in, and based on it Customer first name and second name are updated in the form automatically. This works fine if I pick some value from dropdown, lets say Customer Id = 1111.
Now in place of picking, if i type in this value and press tab, no udpate happens on the Name fields. Please suggest what am I missing here.
I think the best you are going to do with the standard ComboBox is to handle the Leave event, or possibly the TextChanged event. I did some experimenting and typing in a value does not add to the list, it just changes the Text property. It doesn't even change the value of the item you typed over. And, it doesn't fire SelectedItem or IndexChanged events.
So if you handle the Leave event, you have a place to do your lookup when someone tabs off the ComboBox. But the item won't get added to the list.
If you need functionality not provided in the default control, you could redesign your UI with perhaps a TextBox and Button that add an item. Or, you could look for third party implementations of ComboBox controls that would have more functionality.
Private Sub ComboBox1_Leave(sender As Object, e As EventArgs) Handles ComboBox1.Leave
Dim theCB As ComboBox = DirectCast(sender, ComboBox)
DoLookup(theCB.Text)
End Sub
On a normal textbox, I usually use the AfterUpdate event to perform some action. That means the user has to press Enter or Tab after typing, or click in another control, and I have always been happy with that behaviour.
Now I am setting up a Date filter in the header of a continuous form in Access 2010, and I realize that changing the date through the little calendar that comes automatically, does NOT fire the AfterUpdate event, forcing to press Enter after selecting the correct date, which is a bit heavy.
Using OnChange would trigger at every character entered, which is not nice either.
Any suggestion ?
It is a bit late reply but I hope it will help the others.
When using textbox as a DatePicker you should use Change Event with your filter.
However when you are checking your textbox like Form_name.TextboxName it will show last picked date. To avoid that and use currently selected one you need to provide current date like Form_name.TextboxName.Text. Careful here because .Text property is sensitive to focus.
...in short:
Form_name.TextboxName - will show last picked date
Form_name.TextboxName.Text - will show currently picked date
well, after you select a date from the date-picker, the Change event occurs for the TextBox control. Then, call a sub or function or set focus to another control... to avoid event fires for each pressed key, put something like:
if Len(me.activecontrol) < 10 then exit sub
I hope this helps
I use LostFocus event in the textbox. It allows to use the calendar tool and alter the content. The User has to leave the textbox sooner or later, isn't it?
I use it in this way
Private Sub txt_FirstDate_Change()
txt_FirstDate = txt_FirstDate.Text
myfilter
End Sub
I have a standard form in MS-Access which lists a bunch of orders, and each row contains order no, customer, etc fields + a button to view notes and attached document files.
On request from our customer we should gray out the button btnAnm (or check or uncheck a checkbox) depending on a calculation from two queries to two other tables (a SELECT COUNT WHERE and a check if a text field is empty).
I've tried btnAnm_BeforeUpdate(...) and btnAnm_BeforeRender(...) and put breakpoints in the subs, but none of them trigger. The same if I use the control Ordernr instead of btnAnm.
I'd like a function in the Detail VBA code to be triggered for each "Me." (row) so to speak, and set the row's control's properties in that sub.
What do I do? I've looked at the help file and searched here.
*Edit: So I want to do something that "isn't made to work that way"? Ie. events are not triggered in Details.
As an alternative, could I base the value of a checkbox on each line on a query based on the 'Ordernr' field of the current row and the result of a SELECT COUNT from another table and empty field check?
Do I do this in the query the list is based on, or can I bind the extra checkbox field to a query?
A description of how to do this (combine a COUNT and a WHERE "not empty" to yes/no checkbox value) would be perfectly acceptable, I think! :)*
You cannot do much with an unbound control in a continuous form, anything you do will only apply to the current record. You can use a bound control with a click event so that it acts like a button.
Presumably the related documents have a reference to the order number that appears on your form, which means that you can create a control, let us call it CountOrders, with a ControlSource like so:
=DCount("OrderID","QueryName","OrderID=" & [OrderID])
The control can be hidden, or you can set it up to return true or False for use with a textbox, you can also use it for Conditional Formatting, but sadly, not for command buttons.
Expression Is [CountOrders]>0
You can also hide the contents and add a click event so that is acts in place of the command button. Conditional Formatting will allow you to enable or disable a textbox.
As I understand your question, you have a continuous form with as command button that appears on each row - and you'd like to enable/disable the button conditionally depending on the contents of the row.
Unfortunately you can't do that. It seems that you can't reference the individual command buttons separately.
Having wanted to do something similar in the past I came up with two alternate ways of setting up my interface.
Put a trap into the onClick code for the Button. Which is icky, because it is counter intuitive to the user. But it gets you that functionality now.
Move the command button (and editable fields) up into the form header, and make the rows read only. Your users then interact with the record only in the header, and select the record they want work with in the list below. As I recall this is known a Master-Detail interface.