popupcalender sample

[venkata saibabu]

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: {

[Christian Graus]

Well, it means what it says. The index of the : is -1. there's no colon in the string. This is bad code, never ask for something without first making sure it's there.

Christian Graus Driven to the arms of OSX by Vista.