Error in Paging C#?

Sakthis

13y1.7kVisual Basic .NET

I struct in Paging while i press button Last it cant work i am sure it too small error..

Can anyone..

int imageNum = 0;

int fl = 0;

ArrayList al = new ArrayList();

private void btnFirst_Click(object sender, EventArgs e)

{

try

{

if (imageNum + 1 > 0 )

{

pictureBox1.Image = Image.FromFile(al[imageNum].ToString());

imageNum = 0;

}

else

{

MessageBox.Show("No more records available");

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

private void btnPre_Click(object sender, EventArgs e)

{

try

{

if (imageNum - 1 >= 0)

{

pictureBox1.Image = Image.FromFile(al[imageNum - 1].ToString());

imageNum = imageNum - 1;

}

else

{

MessageBox.Show("No more records available");

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

private void btnNext_Click(object sender, EventArgs e)

{

try

{

if (imageNum + 1 < fl)

{

pictureBox1.Image = Image.FromFile(al[imageNum + 1].ToString());

imageNum = imageNum + 1;

}

else

{

MessageBox.Show("No more records available");

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

private void btnLast_Click(object sender, EventArgs e)

{

try

{

if (imageNum - 1 > 0)

{

pictureBox1.Image = Image.FromFile(al[imageNum-1].ToString());

imageNum = imageNum-0;

}

else

{

MessageBox.Show("No more records available");

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

7 Replies

Know the answer? Post it — somebody with the same question will find it here.

Jignesh Trivedi13y ago
Accepted answer
yes you are right arraylist is implement from IList interface so it must be al.Count

sorry for Inconvenient
0
Sakthis13y ago
My dear i am not sure al.Length Work here, it shows the error guide

Error6'System.Collections.ArrayList' does not contain a definition for 'Length' and no extension method 'Length' accepting a first argument of type 'System.Collections.ArrayList' could be found (are you missing a using directive or an assembly reference?)

But my header file is clear here :

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Data.SqlClient;
using System.Collections;
0
Jignesh Trivedi13y ago
ok ok
sorry you are click on last button

try....

private void btnLast_Click(object sender, EventArgs e)
{
try
{
imageNum = al.Length;
if (imageNum - 1 > 0)
{
pictureBox1.Image = Image.FromFile(al[imageNum-1].ToString());
}
else
{
MessageBox.Show("No more records available");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
0
Sakthis13y ago
Hi,

I didn't get success it shows error like "No more records available" when i click the button Last..
0
Jignesh Trivedi13y ago
hi,

in button last click event why you writting "imageNum = imageNum-0; "

i think it shoud be imageNum = imageNum-1;

try it and get back to us if your problem is not resolved.....
0
Sakthis13y ago
Hi,

Actually btn Previous, First, Next works fine but i am not sucess result with btn last, i have few record in that once i click Previous, First, Next works nice but click last it cant go last record..

Guide me..

private void btnLast_Click(object sender, EventArgs e)
{
try
{
if (imageNum - 1 > 0)
{
pictureBox1.Image = Image.FromFile(al[imageNum-1].ToString());
imageNum = imageNum-0;
}
else
{
MessageBox.Show("No more records available");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
0
Jaganathan Bantheswaran13y ago
What is the Error Message?
0