adding controls to panel dinamically

vasu babu

Hi,

I have a flowlayout panel containing 3objects(containing checkbox and textbox) while form loading. I have a button ADD, when ever user clicks add he gets input box and enter some number. i have to add that number of objects to flowlayout along with old 3objects.

for (int i = 0; i < iParseCount; i++)

{

UserPattern oUserPattern = new UserPattern("userDefParser" + (i+1));

pnlUserPattern.Controls.Add(oUserPattern);

}

here pnlUserPattern is the flowlayout panel.

problem is only intial 3 objects are showing.

Any help please..........

thanks in advance.

Vasu.

3 Replies

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Marimuthu Arigovindasamy16y ago
I think, the first 3 objects is added in the form only not inside the Panel control. That's why, u r getting the Panel controls count value as 0.
When U add the 'n' objects in the Panel control, due to the control size, it may not be visible to you. (Can confirm from the Panel controls count, it's added successfully).
Using the below code, you can test whether the objects are added successfully or not.
foreach (Control subctrl in ((Panel)panel1).Controls)
{
if (subctrl is TextBox)
{
MessageBox.Show(subctrl.Name);
}
else if (subctrl is CheckBox)
{
MessageBox.Show(subctrl.Name);
}
}

If still not getting, pls attach ur code in this.
vasu babu16y ago
Thanks Marimuthu.

UserPattern class containing two controls one is checkbox and followed by textbox. I have to add those objects to my userpattern panel. Intially i am adding 3 objects, it's working fine at that time. I am taking input from user and need to add those number of userpattern objects to pnluserpattern.
before adding objects to panel i am getting pnluserpattern.control.count as "o".
but it showing 3 intial objects.
After adding n objects it's showing count as 'n' but displaying only intial objects in the panel.
Actually it has to show 'n+3' as count.
is there any oterway to add these 'n' objects to panel along with intial objects.

thanks very much.
Marimuthu Arigovindasamy16y ago
Hi Vasu,

No idea about your UserPattern function. Might be, the control is added successfully and not visible due to the control size.
Can you try to set the dynamic control size and location as below (You can set the AutoScroll property of panel control to True)
for (int i = 0; i < iValue; i++)
{
Label lblComment = new Label();
lblComment.Name = string.Concat("lbl", i);
lblComment.Text = chartName;
lblComment.Size = new Size(150, 13);
TextBox txtComment = new TextBox();
txtComment.Name = string.Concat("txt", i);
txtComment.Multiline = true;
txtComment.Size = new Size(303, 20);
lblComment.Location = new Point(20, 30);
txtComment.Location = new Point(50, 70);
pnlComments.Controls.Add(lblComment);
pnlComments.Controls.Add(txtComment);
}