x42bn6
Retired Staff
Are there any guides on how to use validation rules in Access?*
Microsoft Access problems
- Thread starter x42bn6
- Start date
Arkillo
The best of both worlds
x42bn6
Retired Staff
Anything more specific?*Grieving Mendacity said:
Arkillo
The best of both worlds
Validation Rule
A validate rule is a condition that the value entered in a field must meet in order to be valid. This rule is usually created as an expression and entered in the Validation Rule property of a field when the table or the form is opened in Design View.
Practical Learning: Setting Validation Rules
The Employees table of the Rockville Techno database should still be opened with the Employees table in Design View.
In the upper section of the table, click BillingRate
In the lower section, click Validation Rule, type 15.00 and press Enter
Save the table
Validation Text
When the condition in the Validation Rule field is not respected, you can display a message box to let the user know. The message for that text box can be created as a string in the Validation Text field.
Practical Learning: Creating a Validation Text
In the upper section of the table, click BillingRate
In the lower section, type:
The minimum billing rate or salary of this company is $15.00
Save and close the table
Value Required for a Field
If you think that there must be an entry for a particular field for each record, you can let Microsoft Access know. The Required property is Boolean value. If you set it to Yes, the user would not be able to move to the next record until he has entered a valid data in the field. Its default value is No.
Practical Learning: Specifying Required Fields
Open the Clients table in Datasheet View and, after viewing it, switch it to Design View
In the upper section of the table, click ContactLastName
In the lower section, double-click Required to change its value to Yes
In the upper section of the table, click PhoneNumber
In the lower section, double-click Required to change its value to Yes
Save and close the table
From http://www.functionx.com/access/lesson22.htm
A validate rule is a condition that the value entered in a field must meet in order to be valid. This rule is usually created as an expression and entered in the Validation Rule property of a field when the table or the form is opened in Design View.
Practical Learning: Setting Validation Rules
The Employees table of the Rockville Techno database should still be opened with the Employees table in Design View.
In the upper section of the table, click BillingRate
In the lower section, click Validation Rule, type 15.00 and press Enter
Save the table
Validation Text
When the condition in the Validation Rule field is not respected, you can display a message box to let the user know. The message for that text box can be created as a string in the Validation Text field.
Practical Learning: Creating a Validation Text
In the upper section of the table, click BillingRate
In the lower section, type:
The minimum billing rate or salary of this company is $15.00
Save and close the table
Value Required for a Field
If you think that there must be an entry for a particular field for each record, you can let Microsoft Access know. The Required property is Boolean value. If you set it to Yes, the user would not be able to move to the next record until he has entered a valid data in the field. Its default value is No.
Practical Learning: Specifying Required Fields
Open the Clients table in Datasheet View and, after viewing it, switch it to Design View
In the upper section of the table, click ContactLastName
In the lower section, double-click Required to change its value to Yes
In the upper section of the table, click PhoneNumber
In the lower section, double-click Required to change its value to Yes
Save and close the table
From http://www.functionx.com/access/lesson22.htm
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