How can I split a MessageBox's content into N episodes?

Question

I have code like this to show me the StackTrace from an exception I'm getting:

catch (Exception x)
{
    MessageBox.Show(string.Format("Booboo ({0}) in buttonGetDeviceLangVal_Click(). StackTrace == {1}",
        x.Message, x.StackTrace));
}

...but I cannot see the entire communique from the bowels of the puny confounded contraption (handheld device) due to the real estate constraints; I cannot drag the MessageBox higher - it bumps its head against the top and refuses to make a hole in the roof so that I can see the rest of the story.

So how can I get the MessageBox to split the string into "episodes" that I can cycle through?

My idea (pseudocode) is something like this:

catch (Exception x)
{
    const int MAX_CHARS_TO_SHOW = 314;
    string exmsg = string.Format("Booboo ({0}) in 
        buttonGetDeviceLangVal_Click(). StackTrace == {1}",
        x.Message, x.StackTrace);
    int msglen = exmsg.Len;
    int charsDisplayed = 0;
    while (charsDisplayed < msglen) do
    {
        string exmsgepisode = String.Copy(exmsg, charsDisplayed, MAX_CHARS_TO_SHOW);
        MessageBox.Show(exmsgepisode);
        charsDisplayed += charsDisplayed;
    }
}

...but I reckon somebody "out there" has a better idea or has already solved this...did I reckon right?

Answer 1

This works:

catch (Exception x)
{
    const int MAX_CHARS_TO_SHOW = 314;
    string exmsg = string.Format("Boo-boo in buttonGetDeviceLangVal_Click(): == {0}", x);
    int msglen = exmsg.Length;
    int charsDisplayed = 0;
    while (charsDisplayed < msglen)
    {
        int CharsToGrab = MAX_CHARS_TO_SHOW;
        int CharsLeft = msglen - charsDisplayed;
        if (CharsLeft < MAX_CHARS_TO_SHOW) CharsToGrab = CharsLeft;
        string msgepisode = exmsg.Substring(charsDisplayed, CharsToGrab);
        int episodeLen = msgepisode.Length;
        MessageBox.Show(msgepisode);
        charsDisplayed = charsDisplayed + episodeLen;
    }
}

Unfortunately, the resulting dual episodic MessageBox showing didn't help me much with the underlying problem. It just tells me (in a nutshell):

Control-OnClick
Button-Onclick
ButtonBase-WinProc
Forms.Ctrl_InternalWinProc
Microsoft.AGL.Forms.EVL_EnterMainLoop
ApplicationRun