I have a form where in need to calculate sum of multiple text boxes.
example: i have two text boxes A=10.15 and B= 15.60. I want to sum their values in text box 'c'. I tried using the sum function but results in '#Error' and '+' which appends the two values '10.1515.60'.
Any Suggestions???
Thank you
Tried this =Val[TextBoxA.value]+Val[TextBoxB.value]
it works, when I try to sum two textboxes in another textbox, at first Access concatenated the values but with this formula access let you sum both values.
Set the Control Source of textbox C (without the quotes).
'=[TextBoxA]+[TextBoxB]'
Make sure the textbox format is Number. Leaving it blank concatenates the values.
The SUM function is for totaling the values in the same field, across multiple records.
To calculate the total of two textboxes, set the Control Source property of textbox C to the following (include the = sign)
= NZ([A],0) + NZ([B],0)
The NZ function gracefully handles NULLS by changing them to 0.
Note that textbox C will be unbound, so the sum will not be stored in your table (but it is not a good practice to store calculations, so that should be OK).
Related
I have a textbox in a form that I created.
I want to add an expression in the textbox's Control Source property.
I also want to bind the textbox to a field in the table using Control Source propety of the textbox.
Is there any way I can add a field name and an expression in the control source property of a particular textbox?
The expression basically adds up couple of numbers and displays the output in that textbox. And I want the output to be stored in a field in the table.
You could link the text box to the table control source and then set the value of the text box to the result of the expression in the AfterUpdate property on the two objects the contain the values you want to add.
For example
me.textbox.value= int1 + int2
This value should then be written to the table.
If you have a text box named txtMy_field which is bound to a field named My_field in your form's record source, you could use the form's on current event to load the sum of those other two numbers into txtMy_field.
If you don't want to over-ride existing values stored in My_field ...
If IsNull(Me.txtMy_field) = True Then
Me.txtMy_field = Number1 + Number2
End If
If you do want to over-ride existing values stored in My_field, eliminate the IsNull() condition.
Me.txtMy_field = Number1 + Number2
If Number1 and Number2 are from other controls on your form, you could also use their after update events to update txtMy_field value on demand.
However, I'm unsure how well I understand your question. These are only general suggestions and I hope they point you to something useful. Incidentally, if those two numbers come from two different forms (as in one of your previous questions) and you intend to display and store their sum via a third form, this could be more challenging than it appears from this question.
If you have textboxes with names text1 and text2 and you will save your answer in text3
you should give this code in text3 properties Control Source:
=Val([text1])+Val([text2])
I have a crosstab query which returns results based on consumer demand for a bunch of material numbers. The material numbers become my field names in the crosstab query, and later the values from those fields are displayed in a form.
In the form, I display the value in a textbox. There are a couple of these textboxes where I need to sum the total of two or more values from these fields. Not a big deal it's a simple expression. For example (in the Control Source property): =[H123457] + [H123456].
This works well UNTIL there is no demand for a particular material number. In this case, the field doesn't show up in the crosstab query and I'm left trying to sum two fields where one doesn't exist.
I've tried IIf(IsError([H123456]), 0, [H123456]), Null expressions, Nz function, etc but cannot figure out how to dynamically solve the #Name issue that ends up populating the text box.
Essentially what I want is for a 0 value for the field that doesn't exist, so I can add it to the value where the field DOES exist - is this possible?
Regards!
June7 provided the answer in the allenbrowne.com link. Essentially, you need to add all of the possible field names to the Column Headings property in the crosstab query property window. Then it's a simple matter of adding an Nz() function to handle null values.
Thanks June7!
New to MS Access and had a question. I am trying to add the value from txtKits and txtFG. I want them to show up in a seperate textbox called txtTotal that returns the value (the textbox also needs to non editable). Here is what the form looks like:
If the user enters just one of the two calculation fields, then I get the attached output. I want it to not give that output. It can stay blank until both are entered. Any help or suggestions?
You can check if both fields are numeric first in your calculated field:
=IIF(IsNumeric([Field1].Value) AND IsNumeric([Field2].Value); [Field1].Value + [Field2].Value; Null)
Trying to get the sum of three fields and enter it in a fourth text box on the same report. For a particular report,
empnose =78
empright=555
empleft= 565
The total text box should be 1198
using the expression
=Sum([EmpNose] And [EmpRight] And [EmpLeft])
the result is -4
using the expression
=Sum([EmpNose]+[EmpLeft]+[EmpRight])
the result is 226514940
using the expression
=([EmpNose]+[EmpLeft]+[EmpRight])
the result is 78555565 (the three values concatenated)
What is the correct syntax?
If you want to add up the values of the current record only, Sum() is wrong, because it sums over all records.
=([EmpNose]+[EmpLeft]+[EmpRight])
should be correct. If it concatenates the values it seems your fields are text fields instead of numbers?
If you can't change the datatypes to numbers, you can try
=(Val([EmpNose]) + Val([EmpLeft]) + Val([EmpRight]))
The Val() function tries to convert a string to a number.
I have a query that returns a fluid # of records, depending on criteria selected in the form. I would like to display the total # of records returned to the form.
I have added a unbound text field to the footer in the form that is displaying the controls and resulting records. I tried the following expressions in the text field, both of which result in #error:
=Count([qrnname]![fieldtocount])
=DCount([qrnname]![fieldtocount])
This should be simple.
DCount requires string values for its arguments. Assuming fieldtocount is the name of a field returned by the named query qrnname, use this as your text box's Control Source ...
=DCount("[fieldtocount]", "qrnname")
Since that query depends on criteria selected in the form, Requery the text box whenever those criteria change to update the count displayed in the text box.
use this =DCount([fieldtocount]![qrnname])
The syntax for the DCount function is:
DCount ( expression, domain, [criteria] )
expression is the field that you use to count the number of records.
domain is the set of records. This can be a table or a query name.
criteria is optional. It is the WHERE clause to apply to the domain.
Dcount in detail
An other alternative is to use =Count(primaryKey) in the Control Source property
It seems better if you have some filter on your original query, so you don't have to apply them again in the DCount (expression, domain, [criteria]) function.
A quick method for counting Access records in a form