I have formatted an some ADODB.Fields from SqlDB Feild object as follows:
Dim dblInspectionFee As Double = 0
Dim dblTaxFee As Double = 0
Dim dblTaxValue As Double = 0
Dim dblTotalFee As Double = 0
dblInspectionFee = .Fields("P01_FEE").Value
dblTaxFee = .Fields("P01_TAX").Value
dblTaxValue = .Fields("P01_TAXRATE").Val
dblTotalFee = .Fields("P01_TOTAL").Value
Me.txt_InspectionFee.Text = dblInspectionFee.ToString(
Me.txt_TaxFee.Text = dblTaxFee.ToString("C")
Me.cbo_TaxValue.Text = dblTaxValue.ToString("P")
Me.txt_TotalFee.Text = dblTotalFee.ToString("C")
My Problem is that after I do some other function (Press some button) I would like to retrieve the Values from the apropriate TextBox and perform some calculation on it.
For some reason I can not change the value of the TextBox using :
Dim dblTaxValue1 As Double = 0
dblTaxValue1 = Val(Format(Me.txt_Inspecti
Back to an string Representation without the currency symbol.
dblTaxValue1 is not taking on the Me.txt_InspectionFee.Text value; it is remaining as 0 (initialized value)
Any ideas as to what I am doing wrong. This would not be an issue in VB 6. the formatting in .Net seems to be working a whole lot differently.
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.
Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
Not much different that in Vb6, I used the same tehnique in both languages. If you want to assign value from textbox to double variable, then you would use above method I posted. However, if you want to format value from double variable to be displayed on textbox with 2 decimal places, you would use
Me.txt_InspectionFee.Text = dblTaxValue1.ToString("N2"
Me.txt_InspectionFee.Text = dblTaxValue1.ToString("#,#
Goran
Goran;
The code snippet you wrote : dblTaxValue1 = Convert.ToDouble(Me.txt_In
Produced the following error:
{"Input string was not in a correct format."}
This worked however:
dblTaxValue = CType(Me.txt_InspectionFee
Further to this ; I guess I was not to clear as to what I was also atempting to accomplish
The main issue was to get a TextBox with : 6.0000 % to convert to a number so I may multiply it by a Fee and get the Tax Value andin turn represent them with the currency mask
I wrote the following which does work but it certainly seems awkward to me... I must be missing something ... there has to be a more elegant soluton.
dblTaxValue1 = Convert.ToDouble(Me.txt_In
dblTaxPercent = CType(Mid(Me.cbo_TaxValue.
dblTaxPercent = dblTaxPercent / 100
dblTaxValue = CType(Me.txt_InspectionFee
dblTaxValue1 = dblTaxValue * dblTaxPercent
Me.txt_TaxFee.Text = dblTaxValue1.ToString("C")
>>The code snippet you wrote : dblTaxValue1 = Convert.ToDouble(Me.txt_In
Produced the following error:
{"Input string was not in a correct format."}
It will produce this error only if Me.txt_InspectionFee.Text cannot be converted to number. Ex, if Me.txt_InspectionFee.Text = "" or Me.txt_InspectionFee.Text = "2c" or Me.txt_InspectionFee.Text = "5%"
Now, to clarify this percentage stuff. back in VB6, there was a Val function that was convenient in this case. When we pass some string to val function like
Val("12345dfdfdgf")
it will return the number 12345. It scans the string and when it comes to a non-number charachter, it returns a number up to the first character.
The same case is with percentage numbers. It doesn't know that is is a number formatted in percent, it only returns the number up to the first string it gets to, in this case '%'.
Now, to clarify why your code is not working (and logically cant). When you pass this to textbox.text property
textBox1.text = dblTaxValue.ToString("P")
the returned value from ToString method is not a number, but a string, and compiler doesn't know that it is a percentage, and therefore cant convert it to number.
Now, there is Val function in .NET, as you have discovered. It is kept for the backward compatibility for vb6 programmers. You can use it the same way you used it in Vb6, makes no difference.
So this should work
blTaxValue1 = Val(Me.txt_InspectionFee.T
Goran
For currency you can use:
d = Decimal.Parse(TextBox1.Tex
to convert the text with symbols to a decimal.
Unfortunately, there is no support for conversion of percentages. You will either have to remove the "%" manually or only display the number in the testbox and put the percent sign as a label next to the textbox.
Business Accounts
Answer for Membership
by: Priest04Posted on 2007-07-10 at 14:30:56ID: 19457975
dblTaxValue1 = Convert.ToDouble(Me.txt_In
Goran