Inserting dynamic checkbox

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hello,

I am developing a project in which i have to insert a list of checkboxes dynamically when the user checks the existing checkbox on the page.
i tried doing this but its not working if user select the existing checkbox i.e chk1

my .cs page

C#

protected void chk1_CheckedChanged(object sender, EventArgs e)
    {
        if (chk1.Checked)
        {
            int a = 1;
            for (; a <= 6; a++)
            {
                CheckBox chklst1 = new CheckBox();
                chklst1.ID = "med_chk" + a;
                panl1.Controls.Add(chklst1);
                Literal li2 = new Literal();
                li2.Text = "";
                panl1.Controls.Add(li2);
            }
        }
    }

my .aspx page

ASP.NET

<form id="form1"  runat="server">
<asp:Panel ID="panl1" runat="server">
<asp:CheckBox ID="chk1" runat="server" Text="hai" oncheckedchanged="chk1_CheckedChanged">
</form>

please help me.asap.

Posted 21-May-12 0:01am

shabadiveda

Updated 21-May-12 0:03am

Prasad_Kulkarni

v2

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Prasad_Kulkarni · Accepted Answer · 2012-05-21T00:09:00

Solution 1

Please refer:
How to generate Dynamic Checkbox in ASP.Net using C#[^]

And more imp. make auto post back property True of your check box.

Posted 21-May-12 0:09am

Prasad_Kulkarni

Comments

shabadiveda 21-May-12 7:34am

thank you 4 d reply...i tried its working fine

Prasad_Kulkarni 21-May-12 7:35am

Glad it helps!
You're welcome.

vangapally Naveen Kumar · Accepted Answer · 2012-05-21T00:11:00

Solution 2

use auto postback =true for existing checkbox

Posted 21-May-12 0:11am

vangapally Naveen Kumar

Comments

shabadiveda 21-May-12 7:34am

thank you 4 d reply...i tried its working fine

vangapally Naveen Kumar 21-May-12 7:41am

welcome.........

mr.priyank · Accepted Answer · 2012-05-21T00:12:00

Solution 3

add AutoPostBack="true" in check box attribute. Like this

C#

<asp:checkbox id="chk1" runat="server" text="hai" oncheckedchanged="chk1_CheckedChanged" autopostback="true" xmlns:asp="#unknown" />