I need to get value on button click from dynamic control which was generated on Page

Question

There have many controls are Generated I want to save value on button click which is dynamically generated on page,Can any one Help me to this. I am new in this field so i m

Answer 1

Here a complete demo snippet how to handle creating and reading values from dynamic controls. You can then adapt it to your own needs.

protected void Page_Load(object sender, EventArgs e)
{
    createDynamicControls();
}

public void createDynamicControls()
{
    //add a textbox
    TextBox tb = new TextBox();
    tb.ID = "DynamicTextBox";
    tb.Text = "TextBox Content";
    PlaceHolder1.Controls.Add(tb);

    //add a dropdownlist
    DropDownList drp = new DropDownList();
    drp.ID = "DynamicDropDownList";
    drp.Items.Insert(0, new ListItem("Value A", "0", true));
    drp.Items.Insert(1, new ListItem("Value B", "1", true));
    PlaceHolder1.Controls.Add(drp);

    //add a button
    Button btn = new Button();
    btn.Text = "Submit Dynamic Form";
    btn.Click += Button1_Click;
    PlaceHolder1.Controls.Add(btn);
}

protected void Button1_Click(object sender, EventArgs e)
{
    //find the dynamic controls again with findcontrol
    TextBox tb = FindControl("DynamicTextBox") as TextBox;
    DropDownList drp = FindControl("DynamicDropDownList") as DropDownList;

    //visualize the values
    Label1.Text = tb.Text + "<br>";
    Label1.Text += drp.SelectedItem.Text;
}

The aspx

<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
<br />
<br />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>