What I want is for the user to type say 3 into a textbox which will then create 3 buttons on the aspx page, is this possible on the webpage or is it just for windows apps? So depending on what the user puts in the textbox, i want to display that number i.e. if they type 4 in textbox then i want 4 buttons to appear My code is below:
Button btnSave = new Button();
btnSave.ID = "btnSave";
btnSave.Text = "Save";
Add these to your ASPX page
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
<asp:Panel ID="buttonPanel" runat="server"></asp:Panel>
and then in your Button click event:
protected void Button1_Click(object sender, EventArgs e)
{
int number = int.Parse(TextBox1.Text);
for(int i = 0; i< number ;i++)
{
Button btn = new Button();
btn.ID = "btnSave" + i;
btn.Text = "Save " + i;
buttonPanel.Controls.Add(btn);
}
}
You can use int.TryParse to check for invalid inputs in the TextBox.
Here is a detailed example on
Adding Controls to an ASP.NET form Dynamically
What they do in that example is to create a PlaceHolder control called DynamicControlsHolder where some controls are added when the user clicks on the AddControlButton
<form id="form1" runat="server">
<div>
<asp:Button ID="AddControlButton" runat="server" Text="Add Control" onclick="AddControlButton_Click" />
<br />
<asp:PlaceHolder ID="DynamicControlsHolder" runat="server"></asp:PlaceHolder>
<br />
<br />
<asp:Button ID="Submit" runat="server" Text="Submit Form" onclick="Submit_Click" />
<br />
........
</div>
</form>
And then in the code behind they react to the AddControlButton being clicked
protected void AddControlButton_Click(object sender, EventArgs e)
{
TextBox txt = new TextBox();
DynamicControlsHolder.Controls.Add(txt);
DynamicControlsHolder.Controls.Add(new LiteralControl("<br>"));
}
Try this way :
for(int i=1; i<= ButtonNos; i++)
{
Button NewButton =new Button();
NewButton.ID = "Newbutton"+i;
NewButton.Width = 540;
NewButton.Height = 60;
NewButton.Text = "Button "+ i;
this.Controls.Add(NewButton);
}
NewButton.Text = "Button "+ i;
this.Controls.Add(btnSave); but that's not all; if you attach events :D ...you guessed right, more pain is coming ;) (depending on where you are adding that control to the page)