Display loop result in asp.net

This will show only result 9 ( last result ).

Yes because you assign a new value to Label1.Text property in every iteration.

Try this instead;

int x = 0;
while (x < 10)
{

  Label1.Text = Label1.Text + x;
  x++;
}

Or instead define a string value outside of while and add it this int values inside of your loop and assign your .Text value outside of your loop like;

int x = 0;
string s = "";
while (x < 10)
{

  s += x;
  x++;
}
Label1.Text = s;

Or use StringBuilder would be better if you use a lot of numbers;

int x = 0;
StringBuilder s = new StringBuilder();
while (x < 10)
{

  s.Append(x);
  x++;
}
Label1.Text = s.ToString();

int x = 0;

while (x < 10) {

  Label1.Text += x+""; // This will show "123456789". 
    x++;
}

You need to add to the text in each iteration.

If you want to show a list of them :

Label1.Text += "," + x.ToString();

Or

Label1.Text = Label1.Text + "," + x.ToString();

Either way will produce the result :

0,1,2,3,4,5,6,7,8,9

You should accumulate the values of each element, something like this:

int x = 0;
while (x < 10) {
  Label1.Text = Label1.Text + x;
  x++;
}

int x = 0;

while (x < 10) {

  Label1.Text += x.ToString();  
    x++;
}

You could use string builder

try this:

 StringBuilder sb = new StringBuilder();
    int x = 0;

        while (x < 10) {
          sb.Append(x);
          sb.Append(" ");
            x++;
        }
 Label1.Text = sb.ToString(); 

Please use the code as below, you gotta assign a new id to Label1.Text in every iteration.

int x = 0;
    while (x < 10)
    {
        label1.Text += x.ToString();
        x++;

   }

Replace

Label1.Text = x+"";

with

  Label1.Text = Label1.Text + x.ToString();

+= append string to variable instead of replacing so,

int x = 0;
while (x < 10) {
  Label1.Text += x+" "; //append space to separate  
    x++;
}