truncate textbox value

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textBox7.Text = Convert.ToDouble(textBox1.Text).ToString();

after excuting this line textbox7.text=1.00034333
i.e. textbox.text=1.000;
i want just first 4 characters in textbox7.text. is it possible using truncate?

plz help.

Posted 6-Oct-15 23:19pm

ven.in

Updated 6-Oct-15 23:20pm

v2

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phil.o 7-Oct-15 6:29am

Technically, in "1.000", there are 5 characters, not 4.
In the solution I provided I assumed you want 3 decimal digits. You can change the format specifier if that does not fit your need.

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Naveen.Sanagasetti · Answer 1 · 2015-10-06T23:33:00

Format the string like below;

C#

String.Format("{0:0.000}", txtbox7.Text);

I assume that you required 3 decimal points after ".", if your expectation is like that then that would be helpful to you.

You can do this in another way also, you just convert that string into decimal and round the decimal point.

phil.o · Answer 2 · 2015-10-07T00:27:00

Solution 4

C#

textBox7.Text = Convert.ToDouble(textBox1.Text).ToString("F3");

You should have a look at MSDN - Standard Numeric Format Strings[^].

Posted 7-Oct-15 0:27am

phil.o

*Suvabrata Roy* · Answer 3 · 2015-10-06T23:22:00

Solution 1

Have a look : https://msdn.microsoft.com/en-us/library/75ks3aby(v=vs.110).aspx[^]

Posted 6-Oct-15 23:22pm

Suvabrata Roy

Comments

ven.in 7-Oct-15 5:25am

this is an string not double

Suvabrata Roy 7-Oct-15 5:26am

You cloud convert it to double...

ven.in 7-Oct-15 5:30am

then again convert into string

Suvabrata Roy 7-Oct-15 5:32am

then round of it and then convert to string,
Or use split and join to achieve the same

ven.in 7-Oct-15 6:02am

ya roking. thanks

Krunal Rohit · Answer 4 · 2015-10-06T23:24:00

Solution 2

C#

var str = new String(textbox7.Text.Take(4).ToArray());
//or
var str = textbox7.Text.SubString(0,4);

-KR

Posted 6-Oct-15 23:24pm

Krunal Rohit

Updated 6-Oct-15 23:36pm

v2

Comments

ven.in 7-Oct-15 5:28am

it is firing error:
An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dll

Additional information: Index and length must refer to a location within the string.

Krunal Rohit 7-Oct-15 5:35am

which one ?

-KR

truncate textbox value

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