Displaying sequently combobox itens failed...

Israel

Hi!

On my Form I have:

1. One combobox

2. One label

3. One button

I have write these simples codes to display all the combobox'items to my label sequently (or automatically) when I click my button. But its doesnt do it. Thanx so much.

private void button1_Click(object sender, EventArgs e)

{

for (int i = 0; i < comboBox1.Items.Count; i++)

{

label1.Text = comboBox1.SelectedItem[i].ToString();

}

label1.Text = label1.Text;

}

9 Replies

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Himanshu Gupta9y ago
Accepted answer
Hi Israel,

Use This Code, If You Want to Appned then USe += instead of = operator..

public delegate void ReadConCallBack(int index);
private Timer timer = new Timer();
private int counter = -1;
public Form1()
{
InitializeComponent();
}
private void ReadCon(int index)
{
if (index==comboBox1.Items.Count)
{
timer.Enabled = false;
}
else {
label1.Text = comboBox1.Items[index].ToString();
}
}
public void FormWithTimer()
{
timer.Tick += new EventHandler(timer_Tick);
timer.Interval = (1000);
timer.Enabled = true;
timer.Start();
}
public void timer_Tick(object sender, EventArgs e)
{
label1.Invoke(new ReadConCallBack(this.ReadCon),
new object[] { ++counter });
}
private void button1_Click(object sender, EventArgs e)
{
FormWithTimer();
}
Israel9y ago
@Himanshu Jaiswal

Hey man, you salved my life. Your codes are very simple, flexible and stronger (no buggs from start to end).
Thanx very much.
Israel9y ago
Hi!

Then this logic is difficult for everyone here. No one cannot resolv it???
Israel9y ago
@Ramesh
Exactly it's that what I need. Like time counter.

@Himashu
For these codes I am using Windows appllication in VS c# 2015 (not Asp.net)
Himanshu Gupta9y ago
Hi Israel, Use this Methodolgy:

1) Put the Lable in aspx page as:

2) Update the code in codebase:

protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = DropDownList1.Items[Convert.ToInt32(Label2.Text)].ToString();
Label2.Text = Convert.ToString(Convert.ToInt32(Label2.Text) + 1);

}
Ramesh Palanivel9y ago
Hi Isreal,

Please let me know if am wrong, My understanding is ,

you want to display the combobox items like time counter in examinations.

?
Israel9y ago
@Ramesh
@Himanshu

Thanx for your codes. But the target is not really that. I would like to see these combobox's items be displayed one by one on the label. For instance, the number appear... later when the second appear (the label it's cleaned). Then the number two can be displayed and so. One by one. Thank so much. I need this help.
Ramesh Palanivel9y ago
Hi Israel,

Try this code in your button click event,
for (int i = 0; i < comboBox1.Items.Count; i++)
            {
                label1.Text = label1.Text+comboBox1.Items[i].ToString()+"\n";
            }
Note : set your lable text empty before run the application
Himanshu Gupta9y ago
Use This code:

private void button1_Click(object sender, EventArgs e)
{
label1.Text = "";
for (int i = 0; i < comboBox1.Items.Count; i++)
{
label1.Text += comboBox1.Items[i].ToString();
}
}