C# Item sliding in Pic.box & TextBox - last click designate the whole text. Why?

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Hello! So, I use a picturebox, textbox and 2 buttons for change items. Almost everything working fine:::

C#

private void buttonPicNext_Click(object sender, EventArgs e)
        {
            if (pic == pictures.Length - 1 && txt == text.Length - 1) 
               { buttonPicNext.Enabled = false; }
            else 
               { buttonPicBack.Enabled = true; pic++; txt++; }

            pictureBox1.Image = Image.FromFile("images/Word/" + pictures[pic]);
            textBox1.Text = text[txt];
        }

Pictures and texts are in array.
This one button give ++ both, because picture and text are couple.
// The other [--] button has no problem.

Well, for example I have 5 pictures/texts. When I reach the last item (5th) I have one more click which disable this button and this click designate the whole last (5th) text.
[Textbox:: ImeMode:NoControl, MultiLine:True, ReadOnly:True +vertical scrollbar]

If Textbox / Behavior / Enabled is false, it's ok, but text is grey and hard to read.

Are there other solutions to avoid this problem?

Posted 9-Aug-15 12:56pm

Norde

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DamithSL · Accepted Answer · 2015-08-09T17:48:00

Solution 1

don't disable, do nothing if you reach last item in the list

C#

private void buttonPicNext_Click(object sender, EventArgs e){
if(pic < pictures.Length -1)
{
   pic++; txt++;
   pictureBox1.Image = Image.FromFile("images/Word/" + pictures[pic]);
   textBox1.Text = text[txt];
}
}

Posted 9-Aug-15 17:48pm

DamithSL

Updated 10-Aug-15 8:46am

v2

Comments

Norde 10-Aug-15 14:39pm

I disabled buttons, because didn't want to get "IndexOutOfRange...".

"if(pic <= pictures.Length -1)" - Index will going out of range, because allow to click.
Without '=' won't going out of range, at the end allow to click more, but won't happen nothing.

Thank you for solution!