How to load UserControl into panel?

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I want to load usercontrol1 in panel1 on pressing button1 and load usercontrol2 in panel1 on pressing button2.

How can I do that?

Posted 10-Feb-11 5:52am

rad444

Updated 10-Feb-11 5:57am

Sandeep Mewara

v2

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2 solutions

Solution 1

In Winforms, won't something like do:

C#

// Button1 click event
myPanel1.Controls.Add(userControl1)

// Button 2 click event 

myPanel2.Controls.Add(userControl2)

Posted 10-Feb-11 6:01am

Sandeep Mewara

Comments

Sergey Alexandrovich Kryukov 10-Feb-11 12:43pm

This is correct, my 5 (and the Answer by Albin presents redundant detail which not always applicable, it depends on other requirements we don't know).
--SA

fjdiewornncalwe 10-Feb-11 14:57pm

+5. This answers the question of the OP as asked.

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Albin Abel · Accepted Answer · 2011-02-10T06:11:00

Sandeep's answer works. But the user control should be an instance and also remove previous control in the panel.

For example

C#

private void button1_Click(object sender, EventArgs e)
{
    foreach (Control ctrl in panel1.Controls)
    {
        ctrl.Dispose();
    }
    panel1.Controls.Add(new UserControl1());
}
private void button2_Click(object sender, EventArgs e)
{
    foreach (Control ctrl in panel1.Controls)
    {
        ctrl.Dispose();
    }
    panel1.Controls.Add(new UserControl2());
}

Alternatively....

Use hide and show as below

C#

public partial class Form1 : Form
{
    private UserControl1 ctrl1;
    private UserControl2 ctrl2;
    public Form1()
    {
        InitializeComponent();
    }


    private void toggleUserCtrl(object sender, EventArgs e)
    {
        if (sender.Equals(button1))
        {
            ctrl1.Visible = true;
            ctrl2.Visible = false;
        }else if(sender.Equals(button2)){
            ctrl1.Visible = false;
            ctrl2.Visible = true;
        }
    }
    private void Form1_Load(object sender, EventArgs e)
    {
        ctrl1 = new UserControl1();
        ctrl2 = new UserControl2();
        panel1.Controls.Add(ctrl1);
        panel1.Controls.Add(ctrl2);
        ctrl1.Visible = true;
        ctrl2.Visible = false;

        button1.Click += new EventHandler(toggleUserCtrl);
        button2.Click += new EventHandler(toggleUserCtrl);

    }
}