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New Message on BDOTNET
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From: nitin_karan
Message 4 in Discussion
Hi Smithesh, First add a placeholder (design time) and then do the following.
Sample <form runat="server">
How many TextBoxes would you like to create?
<asp:textbox runat="Server" id="txt1" Columns="3" /> <br />
<asp:button runat="server" Text="Create Dynamic TextBoxes"
OnClick="CreateTextBoxes" /> <p>
<asp:PlaceHolder runat="server" id="TextBoxesHere" />
</form> Then use the following segment in the button click void
CreateTextBoxes(Object sender, EventArgs e)
{
int n = Int32.Parse(txtTBCount.Text);
// now, create n TextBoxes, adding them to the PlaceHolder TextBoxesHere
for (int i = 0; i < n; i++)
{
TextBoxesHere.Controls.Add(new TextBox());
}
// now, set the Text property of each TextBox
IterateThroughChildren(this);
} Then to Access the Control, you can do something like this. void
IterateThroughChildren(Control parent)
{
foreach (Control c in parent.Controls)
{
if (c.GetType().ToString().Equals("System.Web.UI.WebControls.TextBox")
&& c.ID == null)
{
// ...do something...
}
if (c.Controls.Count > 0)
{
IterateThroughChildren(c);
}
}
}
I think this should help you. However i would like to suggest you somethings. Do
you have a knowledge of Repeater Control, this particular control is very helpful in
implementing in adding controls. If what you're creating dynamically repeats based
on some kind of loop, either from a database, an array, the file system, or similar,
again you don't need to use dynamic controls. This is where a Repeater comes in
handy. You can use a Repeater to repeat just about anything, including repeating a
Datagrid for every row in a database table, for example.
--Nitin
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