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)
Related
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!
I have a store procedure which brings the data as shown below . I'm new to SSRS reporting, I would like to show only those row where "email" column is null. How can i achieve it in SSRS ? As i mentioned I'm very new to this , any screenshot will help me a lot. Thank you for your time.
For this problem, you'll want to change the row visibility to hide rows with a value in that column. I assume you're using a table or matrix to layout this data. You'll want to right click on the row where your data fields are entered. Specifically, the grey box at the left of the row.
From there, you'll need to select the option to Show or hide based on an expression.
And finally, you'll need to enter an expression that finds the values in the email field. I'm not exactly sure what the field names are called but something like the following expression should do it.
= Not IsNothing(Fields!EmailField.Value)
This will check the field where you get the email value with a built-in function of IsNothing. Additionally, since you want fields that do not contain values, the Not keyword reverses the results. If the function evaluates to true and a value is present, the row will be hidden and vice versa.
I have the fallowing scenario.
I have a simple form like this:
Number 1 in the appended image.
And I have a combobox in it, that display data in two columns. When I start typing text, the combobox makes a search of the content like this:
Number 2 in the appended image.
It fills data from the first column, like this:
Number 3 in the appended image.
Is there a way I can tell MS Access in wich column I want to search by text I am typing? I want this behavior to happen fromt the data of the second column.
Images for the post
you can get the data from the second column by using
ComboBoxName.Column(1) in a vba code.
try inserting the following in the combobox after update event
msgbox me.combobo(1)
I have an Access form with a textbox bound to a currency field in a table. As expected, anything other than a numerical entry generates an error. Occasionally, users need to enter several amounts and have those added together and the result entered into the currency field.
To accomplish this, I would like users to enter an equal sign followed by a valid arithmetical string which would evaluate to a number exactly as they would in an Excel cell. For example, if a user enters "=5.31+2" I want the field to evaluate to "7.31" and use that as the value passed to the table when the record is updated or saved. The current workaround is to use the Calculator application but that isn't the ideal solution.
I tried the following code and applied it to both the BeforeUpdate and OnLostFocus events of the textbox (named "tbxTotal_Paid") but neither worked. I simply got "The value you entered is not valid for this field" error.
Dim charCt As Integer
Dim evalStr As String
If Left(tbxTotal_Paid, 1) = "=" Then
charCt = Len(tbxTotal_Paid)
evalStr = Right(tbxTotal_Paid, charCt - 1)
Me.tbxTotal_Paid = CCur(evalStr)
End If
Is this simply applying the code to the incorrect event or is this a coding issue? Any assistance is appreciated.
For me your code looks fine but you might put it in the wrong place.
Like you said Acess is giving you this error because the textbox is bound to the currency-field. So it will never accept non-numerical values because the value-checking code fires even before the before_update-event.
I think the best solution would be to hide your bound text box using Me.tbxTotal_Paid.Visible = False and creating a surrogate textbox which is not bound. You put your code in the beforeUpdate-Event or Change-Event of your surrogate. At the end you should check your final result with IsNumeric(). That way your surrogate textbox writes only correct values to your bound hidden textbox and only numbers arrive at your table.
An alternative would be to change the currency column to a string-field but this would not be wise because of potential wrong data in your database.
Guys...if I want to run a button click event that takes a list box and uses the ID field that is in the listbox in a SQL statement in VB, then is it
me.MyListbox.selected
or
me.MyListbox.value
to get that value? for some reason I have tried both and neither seem to be working. .value returns an empty value, and .selected generates an error stating the argument is not valid.
thanks
justin
If the ID is the bound column and the listbox is not multiselect, you can use just the name of the listbox without any other qualifier. If the ID is not the bound column, then use the column property to get the value : MyListBox.Column(n) where n is the column number starting from zero.
For multiselect listboxes, you need to iterate through the selected items to get a list to use with SQL.
If you are using the query design window or a control on a form or report, you cannot use Me, you must either use the full reference (Forms!Formname!ControlName) or for a control on the same form, just the name of the listbox.