count number loop based on set in textbox value in c#

Question

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Hello friend,

I am using this code to count number

C#

int Startcount = Convert.ToInt32(TextBox1.Text);
int Endcount = Convert.ToInt32(TextBox2.Text);
int count = 0;
for (int i = Startcount; i < Endcount; i++)
{
    count = i;
}
label.Text = "Number: " + count.ToString();

There is 0 value in textbox1 and TextBox2 value is 100000000000 this

i am gating error when my TextBox2.text = 100000000000

i want to count number based on set in TextBox1 to TextBox2
please give me soluton how can i solve cont any nuber lent from TextBox1 to TextBox2
Thank you

Posted 9-Feb-13 23:49pm

bikramjeet.sm

Updated 9-Feb-13 23:54pm

v4

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Comments

Alan N 10-Feb-13 6:02am

When asking a question it is important that you include all relevant information.
In this case we need to know what exception you see and on which line on which it occurs.

bikramjeet.sm 10-Feb-13 7:21am

this is a error with this current code Value was either too large or too small for an Int32. and when i use Convert.ToInt64 then i will get Error Cannot implicitly convert type 'long' to 'int'. An explicit conversion exists (are you missing a cast?)

Alan N 10-Feb-13 8:35am

What I was trying to get you to say was something like

I am getting a System.OverflowException with the message "Value was either too large or too small for an Int32." on the line

int Endcount = Convert.ToInt32(TextBox2.Text);

That error happened at run time and OriginalGriff has explained why.

Now you have a compile time error as you have written something like

int Endcount = Convert.ToInt64(TextBox2.Text);

and the compiler knows that an Int64 will not fit into an int (Int32). The correct line would be

long Endcount = Convert.ToInt64(TextBox2.Text);

Always, always post your code along with the exact error message and the line where it occurs. Otherwise the people who want to help you are guessing.

bikramjeet.sm 10-Feb-13 13:02pm

yes it is

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OriginalGriff · Answer 1 · 2013-02-10T00:55:00

Solution 1

The largest number you can hold in an Int32 is:

C#

2,147,483,647

So your value of:

C#

100,000,000,000

is way, way too big!

Change your Convert.ToInt32 to Convert.ToInt64 calls instead, and use long values instead of int.

Posted 10-Feb-13 0:55am

OriginalGriff

Comments

bikramjeet.sm 10-Feb-13 7:35am

this is a error with this current code Value was either too large or too small for an Int32. and when i use Convert.ToInt64 then i will get Error Cannot implicitly convert type 'long' to 'int'. An explicit conversion exists (are you missing a cast?)

OriginalGriff 10-Feb-13 7:41am

That is why I said "and use long values instead of int."

An int is an Int32, a long is an Int64. You cannot fit any value greater than 2,147,483,647 in any Int32.

bikramjeet.sm 10-Feb-13 7:58am

i am doing this same what you asked but still error

OriginalGriff 10-Feb-13 8:13am

I bet you aren't! :laugh:
If you are getting the error message "Value was either too large or too small for an Int32" then you are still trying to use an int or Int32 value - you can't put that big a number in it.
Try and copy'n'paste your code fragment here - I'll see if I can spot what you have missed.

bikramjeet.sm 10-Feb-13 8:32am

What did i have missed in it

OriginalGriff 10-Feb-13 9:28am

Somewhere, you are assigning the long value to an int - I can't tell you where, because I don't have access top your code...:laugh:

bikramjeet.sm 10-Feb-13 9:30am

textbox2

OriginalGriff 10-Feb-13 9:40am

No, you can't assign an int or a long to a TextBox - you can to some properties, but not to the object itself.
Show the code you are using - it'll be a lot quicker!