how to visible panel control using the for loop

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hii all.

i am anil.. i m facing a problem while to visible panel control on button click..

i m passing a int value in block..

my code is

C#

int block = Convert.ToInt32(Label4.Text);

for (int i = 1; i <= block; i++)
{

    Panel rpt_panel = new Panel();

    rpt_panel.ID = "pnlblock" + i.ToString();
    rpt_panel.Visible = true;


}

help me plz..
thanks in advance

Posted 2-Apr-14 1:17am

bindash

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Raajkumar.b 2-Apr-14 11:41am

add panel or place holder to webform
id:addpanel
addpanel.Controls.add(rpt_panel);

4 solutions

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OriginalGriff · Answer 1 · 2014-04-02T01:25:00

Solution 1

Those are new panels: hence the keyword new.
You do not attach them to any Controls collection, and so you don't display them at all.
Just creating a control is not enough: you need to add it to your page or form as well...

Posted 2-Apr-14 1:25am

OriginalGriff

Comments

bindash 2-Apr-14 7:27am

please explain in detail

ravikhoda · Answer 2 · 2014-04-02T01:26:00

Solution 2

this code looks okay but i think you need to add this panel on the page by using some place holder or something.

from your code i can see that you are generating a control from the code and you need to add it to the page . there are some methods by which you can add controls to the page.

page.controls.add(panlel);

or may be inside a panel or placeholder

Posted 2-Apr-14 1:26am

ravikhoda

Comments

bindash 2-Apr-14 7:28am

i m not generate .. the panels are present in my page.. i want to show accrding to block value on button click

ravikhoda 2-Apr-14 7:33am

okay so instead of generating new control use findcontrol("panleid") method.

Code Help 2014 · Answer 3 · 2014-04-02T01:27:00

Solution 3

You are creating a new panel and making it visible.

If you already have the panel and want to make it visible, then use:

C#

Panel rpt_panel = Page.FindControl("pnlblock" + i.ToString());

Posted 2-Apr-14 1:27am

Code Help 2014

Comments

bindash 2-Apr-14 7:35am

thanks for reply..
bt it's not working

Magus_Tsf · Answer 4 · 2014-04-02T01:29:00

Solution 4

Hi,

I would try this:

C#

foreach (object ctl_loopVariable in this.Controls) {
	ctl = ctl_loopVariable;
	if (ctl is panel) {
		ctl.visible = true;
	}
}

unless you are trying to dynamically create panels using the value in the label as the quantity?

Posted 2-Apr-14 1:29am

Magus_Tsf

Updated 2-Apr-14 1:32am

v2