I try to change the visibility of a field depending if a element is selected in a many2many relation, but I cannot determine how to write the condition.
I can do this with a one2many, but doesn't work with a many2many.
For example I have a multi select field with: X Y and Z values, and I want that an another field become visible if Y is selected.
Do you have an example to provide me ?
Thank you !
Related
I'm having a problem when I want to autofill my form in Microsoft Access. The idea is that I use a combo box to select a name. Then the onChange code of my Combobox automaticlly inserts all the other data in the proper field. I use this code on the Combo Box.
Private Sub cmbName_Change()
Me.tbPersonalNumber = Me.cmbName.Column(0)
Me.tbEmailadress = Me.cmbName.Column(2)
Me.tbBirthday = Me.cmbName.Column(3)
End Sub
This methode works fine for the personalnumber and the emailadress. But it doesn't work for the birthday date, it returns a null value but when I check my table there is is a date in the proper field.
Am I missing something? I tried everything but it wont work.
I was thinking that the problem is related to the birthday column being the last in the table. Or having the date type.
Thank you in advance for your time and efford!
Edit; The .Column(1) is missing because this is the name that is already inserted with the ComboBox.
There is some confusion caused by the wording of the question, I'll try to state back how I've interpreted and if I have it right it may lead you to an answer.
You have combo box called cmdName that is pre-populated with data from a table. The content of the combo box could look as below (you may have set column widths to zero to hide the data)
0001|Gary Evans|gary#email.com|01/Jan/1970
0002|J Rommers |JR#email.com |02/Jan/1970
When the user selects J Rommers Me.tbPersonalNumber is populated with Me.cmbName.Column(0) (0002) and Me.tbEmailadress is populated with Me.cmbName.Column(2) (JR#email.com) but Me.tbBirthday is not being populated with Me.cmbName.Column(3) (02/Jan/1970).
Assuming Me.tbBirthday is a text box with no code that might clear it out, I suspect the issue is within the combo box. Not being sure how your combo box is set up, I would suggets the following checks:-
In the combo box properties, does the Column Count equal 4?
In debug, with a breakpoint on Me.tbBirthday = Me.cmbName.Column(3), does it show you the date you are after?
If it is not there does the query that populates the combo box have it in?
Edit based on comments to help further: -
Change the query to SELECT Personel.PersonalNumber, Personel.Emailadress, Personel.Birthday, Personel.Name FROM Personel ORDER BY Personel.Name; this puts all the fields you want hidden at the front.
Change the column widths property of cmbName to 0,0,0, this first the ones you want hidden and leave the last one to fill the width of the combo box.
Ensure the column count property is still 4 as per the answer
Change your code as per below and Gustav's answer
Replacement code:-
Me.tbPersonalNumber = Me.cmbName.Column(0)
Me.tbEmailadress = Me.cmbName.Column(1)
Me.tbBirthday = DateValue(Me.cmbName.Column(2))
This accounts for the fields moving in the query and ensure the date shows as a date like you wanted.
Comboboxes (and Listboxes) always return a string, so convert that to a Date value:
Me!tbBirthday.Value = DateValue(Me!cmbName.Column(3))
I have this problem, which I have already googled,searched on stack overflow and tried every possible solution that I could found on the internet.
I have a table like this:
When the table is initally loaded the value are not visible and have to be toggled by Filter
After I click on the value, the dataset is filtered, and the Filter group will contain only 1 Value (the one that was selected) after the report reloads.
With an expression I made the left side look orange like the following, if only 1 value in a group exists :
Now I would like to also show the value on the right, but it does not work with all expressions i tried on text box level and/or group level :
=IIF(Fields!filter.BackgroundColor = "Orange" ,false,true)
=IIF(Fields!filter.BackgroundColor <> "Orange" ,true,false)
Can someone help Please ?
After days of trying in different ways, the only working solution was to add an extra column to my dataset called "hidden". If a filter value is the only value counted (grouped by filter) then put a 0 in the hidden field ,else 1 which results in something like :
Filter Value Hidden
A B 1
A C 1
B A 0
After that, on the text field Hidden Value i used expression
=CBool(Fields!hidden.value)
This Worked Great!
I have to color one field based on the value of another field.
Here is an example:
Textbox 10 should display field A.
The color of the text in Textbox 10 is based on the value of field B.
I see how I can change the color of Textbox 10 based on the value of field A, but I do not know how to have the color set based on the value of another field.
What is the code that I need to put into the SSRS expression for textbox 10?
You can reference any field that's in scope or that can be reached from your current scope. Use something like this for the color property of Textbox 10:
=IIF(Fields!FieldB.Value > 5, "#FF0000", "#00FF00")
Enter the expression that references other fields, in the color property.
Can anyone tell me how do I get the Max of a calculated field? Below is an image of my situation:
Note that Flag is of type int.
I want to write the expression in the image , but when I use it, it kinda does:
Sum(Sum(Fields!Flag.value))
Can anyone help me out on this. I think I need to add scope for the Sum(Flag) but when I add the group scope as EMPID as:
=iif(SUM(Fields!Flag.value,"Fields!EmpID.Value")>2,"RED",nothing)
It throws me an error saying something about the scope.
EDIT:
I need attendance of each employees. FLAG is basically 1 if absent and 0 if anything else.
The bottom row(Flag,Date,Status,Comment). Now I have an alert There:
=iif(Fields!Flag.Value=1,"RED",Nothing)
Beside the Textbox(Textbox62) in middle row(EmpID,EmpName) I did Expression:SUM(Flag) and in the Fill section in Text Box Properties i have done:
=iif(SUM(Fields!Flag.value,"Fields!EmpID.Value")>2,"RED",nothing)
So the above expression creates an alert if employee is absent more than 3 days.
The top most row(Department,Manager) can be drilled down for to see more detailed view of the report. Now my problem is, in the column (FLAG) i need to create a Background color change if any employee in a particular department is absent more than 3 days.so that we do not have to drill down all the departments in order see if any employee is absent or not.
So my approach was to see the Max(Sum(Flag))>2 then create color change. I tried:
=iif(MAX(Sum(Fields!Flag.Value))>2,"Red",Nothing)
It does not work at the Department level as it basically considers (SUM(Sum(Flag))).
Thanks................
If you don't specify the scope of an aggregate, it is assumed that you are using the current scope. For example, when you say
Sum(Fields!Flag.value)
It is interpreted as something like
Sum(Fields!Flag.value, "EmpID")
The scope is the name of the Group, not the name of a dataset field.
Depending on where it is in the table. When you want to say something like
Sum(Sum(Fields!Flag.value))
You need to specify the scope for each one that isn't going to be the current default.
In your case you should use something like this:
=iif(MAX(SUM(Fields!Flag.value, "EmpID"), "Department")>2,"RED",nothing)
Again, pay attention to which group each aggregate is referring to and where the expression is on the table.
Also, this expression in a textbox will just make the word "RED" appear in the box. If you want it to change the color, you have to put it in the "Fill color" expression in the properties.
can someone give me an example of what a calculated control is in ms-access?
Say you add a text box to a form, normally it binds back to a specific field in a table, and its contents reflect the contents of that field. A calculated control does not refer to a specific field in a table, rather it displays the calculation done on one or multiple fields in the database. Sometimes, it may not use any fields.
Example of control source value from a calculated control
=[YearlySalary]/52
Presuming that there is a field called yearly salary in the table the form is based on.
A control that simply displays this field would have the following in the control source
YearlySalary
Note the control source for a calculated control starts with an =
you mean this?
Setting the Control Source of a control, generally a textbox, to a calculation creates a calculated control:
=1 * 2
=[TheDate] - 1
=[Stock] * [UnitPrice]
=DlookUp("TheField","TheTable","FieldX=1")
Different cases:
Text box control: here you may be using a trim("text") function to remove spaces and clean up the data--that process requires some calculation
List box control: a calculation may be involved in the query that comprises it's row source. The calculation could be the combination of some kind of cyclic function on a numeric field value which then dramatically changes the order of the data if so directed.
Command Button: a variable could change with the number of presses which in turn changes the command mode of the button. Could change the color of the button, or could hide the button after a certain number of clicks, or could change the column of the listbox that is sorted in a query--each click advances the sort to the adjacent column to the right.