Forms :: Allowing Empty String In A Textbox - Variant Data Type
Jan 19, 2014
I have an Access 2010 database where we have a SQL Linked Table with a column that is nVARCHAR(20) Not Null data type. We have created a form for data entry. Currently when the user tries to erase a value or choose not to define a value we get the following error.
"You tried to assign the Null value to a variable that is not a Variant data type."
This field should accept a blank value "" as the user may not want to set the value. We do not have control over the DB schema, so how can I work around this issue in access?
This is a follow up to a problem I had with a Subreport which I have now solved but would like additional information on the differences between 97 and 2000.
basically I ghad a subreport that worked in97 but gave Invalid Argument in 2000.
It appears that the linking field was too long and this caused the Invalid Argument.
The fileds were a concatonation of two fields. One Number and One Text Field. Yes they were a bit long in certain circumstances but for fairly good reasons. I believe these would be generated as Type Variant.
Does anybody know the differences in teh Variant Type between 97 and 2000. I have tried searching teh Help in 2000 but unable to find any info or indeed the correct phrase to search on.
I am getting this error 'You tried to assign the Null value to a variable that is not a Variant data type. (Error 3162)' I know why I am getting the error, I found out that Form and Subform should be implemented only with one-to-many relationships where the Subform is the many end. However, I have the opposite of that for a reason.
Is this bad practice? Is there anyway around it or to fix the error please?
Im trying create a new form to add our current database that will password protect excel, word and if possible pdf documents when they are dragged onto it.
For now I only have 2 boxes 1 containing the password to be applied and the other to drag the file onto.
I have it all working so once its dragged on it works out if its a word doc, opens a hidden instance of word which then resaves it with a coded password.
The problem comes when change it so the user enters the password to protect it, when they enter a password or click on the drag box it doesn't allow the drag. it seems once they have entered the record the drag option is not available anymore.
I am trying to filter a recordset with a variable q. The field in the table associated with the record set is of data type Date/time. I assigned data types String and Date to q but both cases generates the error message " Data type mismatched in expression".
The first relates to the fact that in the crosstab is a field that is set to Yes/No. It appears as a textbox with a value (0 or 1) in it. I want to replace this with a tickbox but when run neither the textbox nor the tickbox will allow any changes. Is it possible to set this to be editable? I cannot see how this would relate back to the actual data table but if it is possible then this should become clearer.
The second issue relates to the fact that the crosstab obviously creates the number of columns in relationship to the maximum number of values of the relevant field. So, I have a field that can have values from 1 to 15 but in most cases the actual value runs no further than 9 and 10. So for those records where the maximum number is not being used I want the unused tickboxes NOT to appear. Again, is this possible.
In connection with the second, if I have (as I do) this group of 15, which is in fact made up of 3 groups ranging from 1-8, 1-4 and 1-3. So number 8 may not be required in the first group and numbers 3 and 4 in the second. I would prefer there not to be a strange gap between the datasets when run. Is it possible to set up a continuous form so that all the potential boxes are in place, that I run code on load that puts the values in from the query, hiding the end tickboxes and so collecting the groups together - then allowing the changes to be detected through code and re-assigned to the table?
I have a filter (via textbox) on a form that only allows 1 character at a time to be typed (!!?) ie: after typing in "a" it highlights it, which means the next letter I type in, replaces the "a".When I use the mouse to re-click after the letter entered, it does allow further characters.What am I missing here?The code for the filter:Private Sub txtClientSearch_Change() On Error GoTo ErrorHandler Forms!frmClient.Filter = "Name Like " & Chr$(34) & "*" & Forms!frmClient!txtClientSearch.Text & "*" & Chr$(34) Forms!frmClient.FilterOn = TrueExitProcedure: Exit Sub ErrorHandler: DisplayError "txtClientSearch_Change", Me.Name Resume ExitProcedureEnd SubMany thanks!..Is it anything to do with Focus?
So, I have a main form with two continuous subforms like this:
frmContratos: main form frmContInsumos: contains new products frmInsumos: contains existing products
I want the user to highlight a word using a double click in a textbox called DescInsumo from frmContInsumos. And I want that highlighted portion to be used as filter for frmInsumos, which also has a textbox called DescInsumo. I used this and it's giving me the word, but it doesn't work with the double click event:
Code: Private Sub DescInsumo_Click() Debug.Print Me.DescInsumo.SelText End Sub
I'm trying to build a form based on a table where the user can also enter data to update the table but with data fields not originally in the table. Below is a summary of what I have and what I need:
1.) A file that will be uploaded daily into a Table (ie name Denials extract table). 2.) A form bound to table Denials extract 3.) Additional fields that will be updated by users that is not included in this table b/c they are not available in the system we are getting the data extract from. 4.) The user will look up a key field that will allow them to review it in our system. Once they "work" the record, there will be multiple fields that they will update with this information that are not in the bound recordsource (table Denials extract).
Do I create another table with these fields even though they will be blank at first and make them a subform that will have a "primary key field" that will link the main form with the subform? Will they need to "update" a whole new table? Not really sure how that would work since they will be updating fields not in the bound table.
I have a form that a user fill out to populate fields in my database...how can I make it so that user MUST fill in certain fields before they are allowed to save data?
I need to stop users from taking shortcuts when entering data, and skipping a lot of fields. So i would like to be able to specify the minimum fields, and an error message must show when they try save incorrectly to alert them to this.
I have a module that creates records into a contacts table in my access database. When there is no data in the field from outlook, the data is populated as an empty string "" instead of a null value, creating problems with subsequent queries and processes. I'd like to create the data as a null value but the module keeps failing with "object is required" on the statement
It doesn't seem to like System.DBNull.Value or DBNull.Value, and when I assign the vbNullString constant instead, it gets set to "" again and not null.
I have a table with a field with names set to text data type and i want to change it to number data type but when i do it in design view the data get lost. I want to know if there is a way to convert the data in the field as number type and keep the data in the field.
I currently have two froms, "add record" and "add record cont." The reason I have two seperate forms is because when clients create a new record information needs to be saved to two different tables and when creating one from with fields from both tables I ran into many problems. The two tables are named : tblMain, tblFileLoc Currently there is a textbox on both forms named "fileID" the FileID in the first form is from tblMain and is the primary key for that table, the FileID on the second form "Add Record Cont." is just a normal field. When clients enter in the new FileID in the first form "Add Record" and then move onto the next form "Add Record Cont." i need access to bring the entered FileID from the first form and Fill it in the FileID field in the second form. Currently I have tried making the control source for the textbox on the second form = the textbox on the first form but it brought up an error.
I'm working on a report. I have a text box that contains directory path for a picture which is showed in a image box on my report which works great. I have now created a label called "nopiclb" that has "no Pic "entered in it but I want to set the label to not visible if path1 has a file path in it but visible if path1 is empty
I put the code below in onformat event in the detail section, but is not working
Code: Private Sub Detail_Format(Cancel As Integer, FormatCount As Integer) If IsNull(Me.path1) = True Or Me.path1 = "" Then Me.Nopiclb.Visible = True Else Me.Nopiclb.Visible = False End If End Sub
I'm new to Access and am trying to work out the best way to achieve the following.
I need a way for users to be able to filter the data which is displayed by forms or output in reports. For example, suppose that a user wants a list of all customers in either of two specific towns with a specific date of birth.
Obviously this could be achieved using a query and setting the criteria of the towns column to be:
"Anytown 1" or "Anytown 2"
and setting the criteria of the Date of Birth column to be the specific date required, e.g.
"08/08/2006".
However, so far everything about my database has been very user friendly with forms for data entry and presentation, so I don't really want to force my users to start creating their own queries.
The alternative I'm thinking of is as follows. Provide a query to pull together the required information (from various tables) but without any specific criteria. Then create a form with a field for each of the columns in the query, and allow the user to type their critieria into these. Then, place If statements as the criteria of the query to check if there is anything typed into each box on the form and, where there is, set it as the critieria for the query, then run the query.
With the above in mind, I have two questions.
1) Is there a better, more "standard" way to achieve a system of allowing users to create customised filtered data without requiring them to write queries?
2) In some cases, e.g. like with my specification of a town above, it would be good if the user could select the town they want to filter for from a drop-down combo box, rather than typing it in and risking entering details incorrectly. However, this would obviously allow them to select only one town, and not two as was required in my example. Is there an equivalent to a combo box which would allow multiple selections?
Thanks in advance if anyone can help me - and please remember that I am new to Access so whilst I want the best possible solution, I need a plain English explanation!
This really is more of a VB than an Access question, but I need it answered, and I don't know a good VB forum so....
I have a text box that I'm trying to add text to, I have a loop, and every time through the loop it's supposed to concatenate new text into the text box by appending it to the end. I can't seem to be able to find a way to do this. I can't use the <&> operator, and VB doesn't have a <+=> operator (I wish I could do this in C/C++, but oh well). Any ideas? Or do I have to set the existing text to a string, concatenate the new text onto that, and then set it to the textbox?
I'm using the OnLoad event of a form I've got as a placeholder to load a report from the onclick event of a button on my continuous form, and loading a chkbox into the code as a string variable.For some reason, when the DB automates the procedure, I get a 'Type mismatch' error appear, but when I step through the code using F8 it works.
when I press F5 after the code has stopped I get the 'Type mismatch' error.The chkbox contains a value of '-1', and I've used debug.print to return the TypeName and VarType values, which were 'String' and '8' (which I took to mean 'String') respectively.
There are other variables being declared in the code, and I commented out the whole lot and put each one back in individually before running the code as a process of elimination, and the checkbox was the one that threw up the error again.
Code:
Dim Prod1stSend as String Prod1stSend = me.chkProd1stSend
We are using the code to determine whether our clients have been contacted by us before, as this will decide which report is opened. I've tried setting the variable as Boolea and Variant too, and both of those still throw up the same error.
I have a very simple database used by 3 users at a time. It is split into BE and FE. One user accesses the DB with queries only so I have created a DB with the master file linked - and literaly nothing else, She will then create and save all of her queries here. But - I want to keep her from accidently updating the file from here. I can't seem to find a simple solution to simply not allowing her to update. Any ideas? Thanks - Dika
I have a database that allows multiple entrys of the same information. I also have a report based on a query that pulls out said data.
I just need my query to pull out every record regardless if it is indentical to a previous one. I found under queries > design > properties there are two options unique values and unique records. According to a source online, these are what control allowing duplicates through, but I have swapped them around with no luck. Currently they are both set to "no".
Is there some other setting I have to switch up in order to allow the duplicates to come through?
I have a textbox on a subform and I want to get the sum in a string as follows.
Code: Dim s1 As String s1 = Sum(Forms!CountItem!CountItemLastCount.Form!ThisCount) MsgBox s1
When I use the above I get an error message saying - Sub or function not defined and it highlights the sum part of the equation.
I have been using the sum criteria in a textbox but if the user doesn't tab of the box then it doesn't see it as being updated.
I have tried me.dirty and everything else that usually works like send keys tab event, requery form and controls, a left mouse click but nothing is working, therefore I thought that code to actually update the textbox may work.
