Variable not incrementing inside multiple loop

Question

This issue has me stumped. I have a variable I am sharing in a loop and it is not incrementing.

The variable in question is elrObject.currentLocation. There are two ways to increment it - either if the XML element is empty or if it's not.

Here is the code:

if (reader.Name == "Cell")
{  
    if (reader.IsEmptyElement)
    {       
        Response.Write("i ran<br>");
        elrObject.currentLocation++;
    }       
    else
    {
        while (reader.Read())
        {           
            if (reader.IsStartElement())
            {                                           
                //labels
                if (elrObject.currentLocation >= elrObject.index && elrObject.currentLocation <= elrObject.index + elrObject.colSpan)
                    Response.Write("i ran again<br>");

                Response.Write(elrObject.currentLocation + "<br>");
                elrObject.currentLocation++;

            }
            if (reader.Name == "Cell")
            break;
        }
    }
}

The output I am getting is:
0
1
2
3
5

The number 4 is when the XML element is empty and the top loop runs. I am incrementing the variable but it won't show me number 4, it skips it entirely and goes to 5. I am sure the upper loop is running properly and before the lower one because the following also runs:

I ran
I ran again

This confirms the upper loop is running before the lower one....yet the number 4 is skipping itself! I would really appreciate some help with this.

Have you tried running it in a debugger?

CodesInChaos
– CodesInChaos

2013-02-18 20:10:18 +00:00
Commented Feb 18, 2013 at 20:10 — CodesInChaos
– CodesInChaos, Commented Feb 18, 2013 at 20:10

ispiro · Accepted Answer · 2013-02-18 20:14:29Z

4

It's not supposed to show number 4. You don't have a

Response.Write(elrObject.currentLocation + "<br>");

in the

if (reader.IsEmptyElement)

block.

answered Feb 18, 2013 at 20:14

ispiro

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9 Comments

Siriss Over a year ago

agree, that would be the problem.

oe a Over a year ago

But on the next iteration of (reader.Name == "Cell"), when it enters the bottom loop, shouldn't it show it there? After all, the response.write is before the increment.

ispiro Over a year ago

@johnhannigan You're incrementing it by: elrObject.currentLocation++; in the first block.

oe a Over a year ago

Right, I also increment it in the second block (at the end). But my problem here is that the second block never shows this variable as 4 even though it is shared between the loops. After it is incremented to 4, the next time the loop runs it goes to block 2 and it should be at 4 at that point.

ispiro Over a year ago

@johnhannigan You wrote: After it is incremented to 4, the next time the loop runs it goes to block 2 - That's your mistake. It really goes to block 1.

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