How to use the value not displayed by a dropdown when connected to access database - vb.net

My program uses a database in access which consists of BreedID and BreedName. I have a dropdown box in vb.net which shows the name for the user to select, however in my code I would like to store the ID related to that name so that I can send it over to the access database using oledb. Currently this is what it looks like:
Dim BrVar As String = Breed.SelectedItem.Text
But that isn't working! Please help!

You can add hidden columns to your dropdown box, it may already exist. The first column in a dropdown box is column(0) and you can set the width to 0cm. This can be for the ID value. Leaving column(1) for the Name value.
Then you can use Breed.SelectedItem.column(0)

The first thing to do is on the Data tab set up your rowsource to SELECT both the BreedID and BreedName fields (in that order). Then make sure bound column is set to 1.
Then on the Format tab set Column Count to 2 and Column Widths to 0;1.
That will have the result of displaying the BreedName field but using the BreedID field as the value of the combo box.
Use Dim BrVar As Long = Breed.SelectedItem to get the value of BreedID.

Related

How do I fix MS access option group problem?

I created many option groups in MS Access 2013 and I am trying to populate my table according to what is selected in the option group. So, if the user selects option 1, I want "the text" not its value ex: "1" stored in my table. I tried the following code in AfterUpdate() event and it works fine:
Private Sub Frame49_AfterUpdate()
Dim D As Integer
Select Case Me![Frame49]
Case 1
Me![Name] = "text"
D = 1
Case 2
Me![Name] = "text1"
D = 2
Case 3
Me![Name] = "text2"
D = 3
Case 4
Me![Name] = "text3"
D = 4
Case 5
Me![Name] = "text4"
D = 5
End Select
DoCmd.RunCommand acCmdSaveRecord
Rem D = Frame49.Value
End Sub
but when the end user answers the first question and tries to answer the next question, all options of the previous question get selected. How do I fix this?
Here is the file to see what I mean:
https://drive.google.com/open?id=1WjrAhXCnk961mxBuxS3RYqOUpPA_GsyL
Thanks in advance.
even though the option group only takes numeric values, you can achieve what you want by hard coding the values using if statements e.g
If Frame5 = 1 Then orukolook = "okay"
If Frame5 = 2 Then orukolook = "right"
If Frame5 = 3 Then orukolook = "fine"
orukolook is the textbox control that you want the texts to be inserted, so if the first option of the option group is selected,the text "okay" will be inserted into the textbox control, if second option then the text "right" will be inserted.
The values hard coded in the place holder oruko look,e.g okay,right, fine are the labels associated to each value in the option group.
OptionGroup frame and associated buttons/checkboxes must have a number value. Therefore OptionGroup frame must be bound to a number type field. If you want controls to reflect selection in a text field, then need code to set UNBOUND OptionGroup frame with corresponding number value. In other words, convert saved text back to number value. Code would most likely need to be in form Current event. Something like:
Me.Frame49 = Switch([Name]="text",1, [Name]="text1",2, [Name]="text2",3, [Name]="text3",4, [Name]="text4",5)
Alternatively, save number value to number fields. Text equivalent is provided by labels on form. Use lookup tables to provide text equivalent on reports or calculate the equivalents with expressions in query or textboxes. An expression like:
Choose([Name], "text", "text1", "text2", "text3", "text4")
BTY, Choose() expression can be used in place of Case structure in your original code.
Me![Name] = Choose(Me.Frame49, "text", "text1", "text2", "text3", "text4")
Also recommend using radio (option) buttons instead of checkboxes.
Other alternatives are comboboxes and listboxes instead of option groups.
Advise not to use reserved words as names for anything. Name is a reserved word. Also, avoid spaces and punctuation/special characters in naming convention.
Frame49 is bound to a database field.
When the user clicks a checkbox, the field's value (along with Frame49's value) is set to an integer.
You then change the database field's value to a string.
This causes Frame49's value to be set to that string.
Since that is an invalid value for an Option Group, all the related checkboxes show as a solid black square, representing an indeterminate state. That is not the same as a checkmark, so your observation "all options of the previous question get selected" is incorrect.
The simplest way to do what you want is to use a 1-column ListBox instead of an Option Group. You can size each ListBox so that it shows all the options as text strings.
When the user clicks an "option" to select it, the corresponding text string will be written to the database, with no VBA code involved.
When the user goes back to a previous record, the ListBoxes will all show the proper selections.
If you don't want to change how your form looks, then you must do as others suggested, and make Frame49 unbound, i.e. set its Control Source to blank.
Then when you set the database field's value to a text string, Frame49's value will remain as an integer.
If you want the ability to go back and edit earlier records, you can do it but it is beyond what I can answer here.

How to use a combobox in ms Access to display the value of field in table and at the same time present the users with a list of options to edit?

I have an unbound form where my controls (among which there are some comboxes) are filled with data in a DAO.Recordset rst (opened with a SELECT SQL statement):
me.Controls("mycontrol").Value = rst.Fields("somefield")
The combobox displays the correct value ('YES' or 'NO') stored in the table. How can I make the combobox display these two options to the user if he wants to change the value? And how to I get the value the user picked (in VBA)?
Never mind. I think I did it!
mycontrol.RowSourceType = "Value List"
mycontrol.RowSource = "YES;NO"

Select combobox intem after bounded with SQL Query in Access

I have the following pair of combobox that are used for two inserts in two different access tables from a single form.
The problem I have is that I am not able to make anything else load the form is selected both in Name_OT and in Year the first value that contains corresponding combobox.
I think the solution is with:
Combobox1.Selected (0) = True 'First value
But the combobox goes blank, no text or anything appears.
Solved with this
Cuadro_combinado79 = Cuadro_combinado79.ItemData(0)
Cuadro_combinado85 = Cuadro_combinado85.ItemData(0)

Vlookup for InfoPath 2010

I'm trying to develop a calculator type from in InfoPath where the user will be asked to end weight,height, and age. I will then take those values and use them to look up other values that are based on that number. For example if the column headers are Gender, Age, Height, L, M, and S. I want to find the 'L,M,S' values associated with that height. All values in the case are different. So if height were 45, L=-1, M=1, S=2; if height were 50, L= -2, M= 5, S=3.
In excel you a Vlookup with the syntax of :
Dim A as double
Dim Height as double
height = txtHeight.Value
A = Application.WorksheetFunction.VLookup(height, Range("C2:F652"), 2, False)
This would give you the "L" value for the row in which that height is located.
How can I do this in InfoPath? I have seen that are cascading queries you can do for dropdowns and comboboxes, but I want them to be able to type in a value, find a value on a SharePoint list based on that number and then return that number to another text box to use for my calculation.
If the values you want to look up are in a SharePoint list, then you need to create a data connection to that list. Make sure to include all the fields you need. Don't load the data connection at form load.
Let the user enter the height. Create a rule for the height field that fires when the field changes. Add an action that sets the query field for the secondary data source to the value of the height field, then query the data connection. Now the secondary data source contains the record with that height and the fields in the secondary data source contain the values. You can copy the values into text boxes on the canvas.
More details:
After you have set up a data connection to the Heights list, click the Heights field and add a rule by clicking New > Action.
Click the Add button and add an action to set a field's value.
Click the button next to the "Field" text box. If you don't see the top drop-down to select a different data source than the main data source, click the "Show Advanced View" link. Select the secondary data source for the Heights list, open the node for queryFields and the node below that and select the Height field.
Click the fx button next to the "Value" text box, then click "Insert Field or Group" and select the "height" field of the main data source.
OK out of all dialogs.
Add another rule to query for data.
Select the secondary data source to the Heights list.
Add another rule to set a field's value. For "Field" select the main data source field into which you want to copy the looked up value. For "Value" select the secondary data source and drill into the dataFields node until you see the field names. Select the desired field and OK out of all dialogs.
The rules panel should now look similar to this, but with your column names.
Test the form. Enter a valid height into the height field and click out of the field. The corresponding value from the height list will be written into the textbox. The screenshot shows the SharePoint list in the background with the item for heigt "66" highlighted. The value returned to the InfoPath text box "getV1" is from the "V1" field of the SharePoint list.
Hope that makes it clearer.

How do I get value from datavaluefield and print it on a page in VB.Net

I am quite new to programming and will really appreciate if anyone can help me..Thanks
Question: My dropdown list in my web project is holding value of a person name in 'DataTextField' and it is holding person's ID in the 'DataValueField'
so if I want to print the value of the DataValueField what shall I do?
What I did:
Dim PersonID as String = DropDownPerson.DataValueField
Response.Write(PersonID)
but the above code is returning the column name and not the value of the column.
Please help !
Dim PersonID as String = DropDownPerson.SelectedValue
Just to clear something up - DataTextField and DataValueField are used by the dropdown control (and databinding) to describe which fields to use as the display value and identity value for a selected row.
SelectedValue holds the actual value of the field named in DataValueField for the selected row.