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Convert string to decimal and do computations on it
I have a vb 2005 application. Right now I am using Access as the backend database. Instead of using Currency and percentage data types in the database, I have them as text or string data types.
I am able to convert the string to decimal and format for percentage and currency so that the textboxes show the correct values like the example below:
--------------------------
Private Sub txtRetailDisc_Validated(By
Dim PercentageRate As Decimal = CDec(txtRetailDisc.Text)
txtRetailDisc.Text = FormatPercent(PercentageRa
End Sub
--------------------------
Here is my problem and question.
I need to take the value of txtRetailPrice and multiply it by the txtRetailDisc textbox to show the value in the txtDiscountPrice.text ( textbox)
I either can't get a result or get a mismatch when I try to do this.
Is there a way to convert a string and then do computations on it or should I change the data types in the database. I have tried that, but I cannot get Currency or percentages to format in the vb 2005 program.
I am not using any bound data controls either, this is all being done through code.
I am able to convert the string to decimal and format for percentage and currency so that the textboxes show the correct values like the example below:
--------------------------
Private Sub txtRetailDisc_Validated(By
Dim PercentageRate As Decimal = CDec(txtRetailDisc.Text)
txtRetailDisc.Text = FormatPercent(PercentageRa
End Sub
--------------------------
Here is my problem and question.
I need to take the value of txtRetailPrice and multiply it by the txtRetailDisc textbox to show the value in the txtDiscountPrice.text ( textbox)
I either can't get a result or get a mismatch when I try to do this.
Is there a way to convert a string and then do computations on it or should I change the data types in the database. I have tried that, but I cannot get Currency or percentages to format in the vb 2005 program.
I am not using any bound data controls either, this is all being done through code.
ASKER
Well, Microsoft has alot of info but I need an example of how to do this. Do you know of any?
ASKER CERTIFIED SOLUTION
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ASKER
I keep getting errors for some reason. Says Input string is not in the correct format...
ASKER
Ok, I had to remove the previous formatting I had entered. Now it works.
http://msdn2.microsoft.com/en-us/library/system.decimal.parse.aspx
To round a decimal variable
Decimal.Round(VariableName
http://msdn2.microsoft.com/en-us/library/system.decimal.round.aspx
To integrate the decimal variable in a string
String.Format("The formatted decimal {0}.", VariableName)
I hope this information is helpful.