i am not using Ajax controls in this particular page

public void OpenNewWindow(string url) { string winFeatures = "toolbar=no,status=no,menubar=no,location=center,scrollbars=no,resizable=no,height=300,width=400"; ClientScript.RegisterStartupScript(this.GetType(),"newWindow", string.Format("window.open('{0}', 'yourWin', '{1}');", url, winFeatures)); } protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { if (Session["Admin_Id"] != null) { //Lbladminname.Text = "Hi" + Session["username"].ToString(); // Response.Write(Session["username"].ToString()); //Lbladminname.Text = "Dear" + Session["username"].ToString(); //showlastlogindata(); showlastlogindata(); Label lbl = (Label)Master.FindControl("Lbladminname"); Label lblt = (Label)Master.FindControl("Lbltime"); if(lbl !=null) { lbl.Text =" Welcome " + Session["username"].ToString().Trim(); } if (lblt != null) { lblt.Text = DateTime.UtcNow.ToLongDateString().ToString(); } //HttpCookie mycookie = Request.Cookies["link"]; if (Session["link"] != null) { //Response.Write(Session["link"].ToString()); Response.Redirect("PropertyViews.aspx"); } else { OpenNewWindow("Remainder.aspx"); } //Lbllastlogin.Text = Session["username"].ToString(); } else { Response.Redirect("Adminlogin.aspx"); } //addlogs(); } } iam calling the javascript function in Page_load ,its working properly ,but the pop window is not displayed.so please some one help me i have specified my total code above thanks in advance

this is my code: protected void Page_Load(object sender, System.EventArgs e) { if (!Page.IsPostBack) { this.TextBox1.Text = System.DateTime.Now.ToShortDateString(); this.pnlCalendar.Attributes.Add("style", "DISPLAY: none; POSITION: absolute"); } else { string id = Page.Request.Form["__EVENTTARGET"].Substring(0,Page.Request.Form["__EVENTTARGET"].IndexOf(":")); if (id != this.ID) { this.pnlCalendar.Attributes.Add("style","DISPLAY: none; POSITION: absolute"); } else { this.pnlCalendar.Attributes.Add("style","POSITION: absolute"); } } Page.RegisterClientScriptBlock("Script_Panel" + this.ID, " function On"+this.ID+"Click() { if("+this.ID+"_pnlCalendar.style.display == \"none\") "+this.ID+"_pnlCalendar.style.display = \"\"; else "+this.ID+"_pnlCalendar.style.display = \"none\"; } "); this.Button1.Attributes.Add("OnClick","On"+this.ID+"Click()"); } and for changing the date: protected void Calendar1_SelectionChanged(object sender, System.EventArgs e) { this.TextBox1.Text = Calendar1.SelectedDate.ToShortDateString(); this.pnlCalendar.Attributes.Add("style", "DISPLAY: none; POSITION: absolute"); } now iam getting the error as below :please can any one help me to run properly my code: Length cannot be less than zero. Parameter name: length error is generated at this lines: Source Error: Line 23: else Line 24: { Line 25: string id = Page.Request.Form["__EVENTTARGET"].Substring(0,Page.Request.Form["__EVENTTARGET"].IndexOf(":")); Line 26: if (id != this.ID) Line 27: {

i have a iload control setup for uploading images ,how could i use that control in my application

i could not able to create a database for an online website