I convered the image button in the Gridview into the Templet, and used the ImageButton1_Click event handler. I think because when you select the row, it will change the row index to "-1", which does not really exist in the GridView, By using: Session("OrderID") = Convert.ToString(CType(GridView2.Rows(GridView2.SelectedIndex).FindControl("Label4"), Label).Text) it keeps on throw me the error that "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" Otherwise if I use: Session("OrderID") = Convert.ToString(CType(GridView2.SelectedRow.FindControl("Label4"), Label).Text) It will say " Object reference not set to an instance of an object." So it just doesn't work. I don't know how to use these 2 properties. Can you please help? Thanks,

Hi, I want to get the value of "OrderID", which is the first colum in the Gridview2, from the Gridview when a specific row is selected with hard coding. My code is: Session("OrderID") = Convert.ToString(CType(GridView2.Rows(GridView2.EditIndex).FindControl("Label4"), Label).Text) I've also tried to use GridView2.SelectedIndex, which always returns -1, which is an invaliad index value. or GridView2.SelectedRow.Cells(1).Text but it seems the SelectedRow is always nothing. So I don't know what is wrong with me. Can anyone help please? Thank you.

Hi Ashutosh, Sorry, I'm still not very clear about these codes Does it work the same for ListBox as well? So what is "states"? Is it a name of a talbe or a DataSet or something?

Aashutoshkumar wrote:

for (var i = 0; i < states.Tables[0].Rows.length; ++i)

What about "StateName" and "StateId"? Are these some kind of a property or it will be the Name and ID of the DataSet?

Aashutoshkumar wrote:

document.getElementById("ddlState").options[document.getElementById("ddlState").options.length] = new Option(states.Tables[0].Rows[i].StateName, states.Tables[0].Rows[i].StateId);

How about the "or" is it a part of the code or it's the next line of the code will do the same thing as the codes above, so it is another option for me?

Aashutoshkumar wrote:

or document.getElementById("ddlState").options[0] =value;

Thank you for answering me. And sorry about the trouble, without understanding them I can not modify them and customise into my codes. Thanks again,

Hi Ashutosh, Thank you for your reply. Can I please know what "ddlState" is? Is it the name of the Listbox I want to display the words, or the control that has the sentance? If it is the Listbox, where can I pass the sentance? And should I use something to split the sentance first? Thanks,

Hi, I want to split a sentence and put each word into a row of ListBox by using Javascript. Does anyone know how to do that? Thanks,

Hi, I was trying to send a number from a HTML textbox to add a value to it at the Server, then return it to an ASP textbox. But I don't know to to pass the value of the HTML textbox to the server. The 2 Javascript functions are: //the first function to call the server function GetNumber() { UseCallBack(); } // The function receive the adjusted value from the server and display it into the textbox1 function GetRandomNumberFromServer(arg, context) { document.forms[0].TextBox1.value = arg; } Here are the server side code, written in the .vb file: Dim _callbackResult As String = Nothing Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim cbReference As String = Page.ClientScript.GetCallbackEventReference(Me, _ "arg", "GetRandomNumberFromServer", "context") Dim cbScript As String = "function UseCallBack(arg, context) {" & cbReference & "}" Page.ClientScript.RegisterClientScriptBlock(Me.GetType(), "UseCallBack", cbScript, True) End Sub Public Function GetCallbackResult() As String Implements System.Web.UI.ICallbackEventHandler.GetCallbackResult Return _callbackResult End Function Public Sub RaiseCallbackEvent(ByVal eventArgument As String) Implements System.Web.UI.ICallbackEventHandler.RaiseCallbackEvent _callbackResult = 'equal the value from the HTML textbox + 5 End Sub Does anyone know where I can add some code to ask to pass the value to the Server? Thanks,

Hi, I was trying to send a number from a HTML textbox to add a value to it at the Server, then return it to an ASP textbox. But I don't know to to pass the value of the HTML textbox to the server. The 2 Javascript functions are: //the first function to call the server function GetNumber() { UseCallBack(); } // The function receive the adjusted value from the server and display it into the textbox1 function GetRandomNumberFromServer(arg, context) { document.forms[0].TextBox1.value = arg; } Here are the server side code, written in the .vb file: Dim _callbackResult As String = Nothing Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim cbReference As String = Page.ClientScript.GetCallbackEventReference(Me, _ "arg", "GetRandomNumberFromServer", "context") Dim cbScript As String = "function UseCallBack(arg, context) {" & cbReference & "}" Page.ClientScript.RegisterClientScriptBlock(Me.GetType(), "UseCallBack", cbScript, True) End Sub Public Function GetCallbackResult() As String Implements System.Web.UI.ICallbackEventHandler.GetCallbackResult Return _callbackResult End Function Public Sub RaiseCallbackEvent(ByVal eventArgument As String) Implements System.Web.UI.ICallbackEventHandler.RaiseCallbackEvent _callbackResult = 'equal the value from the HTML textbox + 5 End Sub Does anyone know where I can add some code to ask to pass the value to the Server? Thanks, -- modified at 4:30 Tuesday 3rd October, 2006

Cool. Thank you so much After I View the source code during the runtime, I find the ID of the textbox. The ID of the textbox is "ctl00$ContentPlaceHolder1$TextBox1" The name of the textbox is just TextBox1 and the "ct100" I don't know what it means but it's just there. Just in case someone has the same problem with me. Cheers,

Hi, I'm trying to use callback function to send a randon number to the client. My code works on a normal page, but not on a page with Masterpage. My JavaScript is: //To call the function in the Server function GetNumber() { UseCallBack(); } // To retrive the value from the server to display it in the TextBox1 function GetRandomNumberFromServer(arg, context) { document.cforms[0].TextBox1.value = arg; } So is there anything I should change? Thanks, Si Jia