JavaScript Add.Addtribute to an ASP.NET Button

[IntraRELY]

I need to attach the following 2 little scripts to an ASP.NET Button. I am
having an issue with running both of the Attributes.Add. I can only get on
to work at once. I have also tried to put them both/either in the page_load,
but cannot get it to work.

TIA,

Steve Wofford
www.IntraRELY.com
SUEDO Code:
----------------------
User clicks btnPrint
Sc. 1
btnPrint.Attrib utes.Add("OnCli ck", "javascript:ret urn confirm('Are you sure
you want to print these checks?');")
removed records from the datagrid and redraws it w/o the checks records.
Sc. 2
btnPrint.Attrib utes.Add("oncli ck", "window.open('p rintCheckClient .exe',
1);")
Local vb.net client queries the db for the records that where removed from
the above datagrid.
ACTUAL CODE:
-----------------------
' Sc. 1
btnPrint.Attrib utes.Add("OnCli ck", "javascript:ret urn confirm('Are you sure
you want to print these checks?');")
Dim checkIdItem As DataGridItem
sqlChecks.Open( )
For Each checkIdItem In dgChecks.Items
Dim dgCheckbox As CheckBox = CType(checkIdIt em.Cells(0).Con trols(1),
CheckBox)
If dgCheckbox.Chec ked Then
Dim selectedCheckId = dgChecks.DataKe ys(checkIdItem. ItemIndex)
With cmdChecksPrintU pdate
..Parameters("@ checkId").Value = selectedCheckId
..Parameters("@ printed").Value = 2
End With
Try
Dim eNonQuery = cmdChecksPrintU pdate.ExecuteNo nQuery
With cmdChecksCount
..Parameters("@ printed").Value = globalPrinted
End With
dgChecks.Virtua lItemCount = cmdChecksCount. ExecuteScalar()
Catch ex As SqlClient.SqlEx ception
lblMessage.Text = "Unexplecte d error." + ex.Message
Finally
End Try
End If
Next
If dgChecks.Curren tPageIndex = 0 Then
dgChecks_fill(g lobalPrinted)
Else
If Math.Ceiling(dg Checks.VirtualI temCount / dgChecks.PageSi ze) <
dgChecks.PageCo unt Then
Dim currentPageInde x = dgChecks.Curren tPageIndex
Dim pageCount = dgChecks.PageCo unt
If currentPageInde x + 1 = pageCount Then
dgChecks.Curren tPageIndex = Math.Ceiling(dg Checks.VirtualI temCount /
dgChecks.PageSi ze) - 1
Dim topExclude = (dgChecks.Curre ntPageIndex) * dgChecks.PageSi ze
dgChecks_fill(t opExclude)
Else
Dim topExclude = (dgChecks.Curre ntPageIndex) * dgChecks.PageSi ze
dgChecks_fill(t opExclude)
End If
Else
Dim topExclude = (dgChecks.Curre ntPageIndex) * dgChecks.PageSi ze
dgChecks_fill(t opExclude)
End If
End If
' Sc. 2
btnPrint.Attrib utes.Add("oncli ck", "window.open('p rintCheckClient .exe',
1);")
End Sub

[Steven Cheng[MSFT]]

Hi Steve,
Thank you for using MSDN Newsgroup! My name is Steven, and I'll be
assisting you on this issue.
From your description, you've a web page which has a button named
"btnPrint" and you'd like to add two "onclick" client side event for this
button, the first is to popup a messagebox to confirm the operation. Then
you want the page posted back to the server and do some Database
manipuliation operation, after that, you want to add the
"window.open('p rintCheckClient .exe)" to the btnPrint's "onclick" event.
If there is anything I misunderstood, please feel free to let me know.

As for the client side script and event. Each html control such as button
could only have one handler for a certain event. For example, for a button,
you could only set one function or script block for its "onclick" event one
time. As for your situation, I think you may set the btnPrint's "onclick"
event as "javascript:ret urn confirm('Are you sure
you want to print these checks?');" Then, put the database operation in the
btnPrint's serverside click event, and use the "Page.RegisterS tartupScript"
method to add a script block which will be executed right after the page is
loaded in the client again. For example:
private void btnPrint_Click( object sender, System.EventArg s e)
{
//add the database operation here
Page.RegisterSt artupScript("Op enPrintWindow", "<script
language='javas cript'>window.o pen('printpage' ,'_blank')</script>");

}
Also, to make it clearly, I've made a sample page to show the code logic.
You may try it out on your side to see whether it can help you on this
problem.

---------------------------------------aspx page
code--------------------------
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1 </title>
<meta name="GENERATOR " content="Micros oft Visual Studio.NET 7.0">
<meta name="CODE_LANG UAGE" content="Visual Basic 7.0">
<meta name="vs_defaul tClientScript" content="JavaSc ript">
<meta name="vs_target Schema"
content="http://schemas.microso ft.com/intellisense/ie5">

</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<table width="600" align="center">
<tr>
<td><FONT face="ËÎÌå">
<asp:Label id="lblMessage " runat="server"> </asp:Label></FONT></td>
<td>
<asp:Button id="btnPrint" runat="server"
Text="Print"></asp:Button></td>
</tr>
</table>
</form>
</body>
</HTML>

-----------------------------------------code-behind page class
code-----------------------------
public class Show : System.Web.UI.P age
{
protected System.Web.UI.W ebControls.Labe l lblMessage;
protected System.Web.UI.W ebControls.Butt on btnPrint;

private void Page_Load(objec t sender, System.EventArg s e)
{
// Put user code to initialize the page here
btnPrint.Attrib utes.Add("oncli ck","javascript :return confirm('Are you
sure you want to print these checks?');");
}

#region Web Form Designer generated code
override protected void OnInit(EventArg s e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeCompo nent();
base.OnInit(e);
}

/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeCompo nent()
{
this.btnPrint.C lick += new System.EventHan dler(this.btnPr int_Click);
this.Load += new System.EventHan dler(this.Page_ Load);

}
#endregion

private void btnPrint_Click( object sender, System.EventArg s e)
{
//add the database operation here
//simulate the data operation
System.Threadin g.Thread.Sleep( 1000);
lblMessage.Text = "Database operation finish!";

Page.RegisterSt artupScript("Op enPrintWindow", "<script
language='javas cript'>window.o pen('printpage' ,'_blank')</script>");

}
}

If you feel the suggestion not quite suitable for your situation. Please
feel free to let me know and provide me more information on your
requirement so that I can make more effort on it.

Regards,

Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

[IntraRELY]

Worked like a charm...Thanks for you help!

Steve Wofford

"Steven Cheng[MSFT]" <v-******@online.m icrosoft.com> wrote in message
news:ut******** *****@cpmsftngx a08.phx.gbl...

Hi Steve,
Thank you for using MSDN Newsgroup! My name is Steven, and I'll be
assisting you on this issue.
From your description, you've a web page which has a button named
"btnPrint" and you'd like to add two "onclick" client side event for this
button, the first is to popup a messagebox to confirm the operation. Then
you want the page posted back to the server and do some Database
manipuliation operation, after that, you want to add the
"window.open('p rintCheckClient .exe)" to the btnPrint's "onclick" event.
If there is anything I misunderstood, please feel free to let me know.

As for the client side script and event. Each html control such as button
could only have one handler for a certain event. For example, for a button, you could only set one function or script block for its "onclick" event one time. As for your situation, I think you may set the btnPrint's "onclick"
event as "javascript:ret urn confirm('Are you sure
you want to print these checks?');" Then, put the database operation in the btnPrint's serverside click event, and use the "Page.RegisterS tartupScript" method to add a script block which will be executed right after the page is loaded in the client again. For example:
private void btnPrint_Click( object sender, System.EventArg s e)
{
//add the database operation here
Page.RegisterSt artupScript("Op enPrintWindow", "<script
language='javas cript'>window.o pen('printpage' ,'_blank')</script>");

}
Also, to make it clearly, I've made a sample page to show the code logic.
You may try it out on your side to see whether it can help you on this
problem.

---------------------------------------aspx page
code--------------------------
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1 </title>
<meta name="GENERATOR " content="Micros oft Visual Studio.NET 7.0">
<meta name="CODE_LANG UAGE" content="Visual Basic 7.0">
<meta name="vs_defaul tClientScript" content="JavaSc ript">
<meta name="vs_target Schema"
content="http://schemas.microso ft.com/intellisense/ie5">

</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<table width="600" align="center">
<tr>
<td><FONT face="ËÎÌå">
<asp:Label id="lblMessage " runat="server"> </asp:Label></FONT></td>
<td>
<asp:Button id="btnPrint" runat="server"
Text="Print"></asp:Button></td>
</tr>
</table>
</form>
</body>
</HTML>

-----------------------------------------code-behind page class
code-----------------------------
public class Show : System.Web.UI.P age
{
protected System.Web.UI.W ebControls.Labe l lblMessage;
protected System.Web.UI.W ebControls.Butt on btnPrint;

private void Page_Load(objec t sender, System.EventArg s e)
{
// Put user code to initialize the page here
btnPrint.Attrib utes.Add("oncli ck","javascript :return confirm('Are you
sure you want to print these checks?');");
}

#region Web Form Designer generated code
override protected void OnInit(EventArg s e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeCompo nent();
base.OnInit(e);
}

/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeCompo nent()
{
this.btnPrint.C lick += new System.EventHan dler(this.btnPr int_Click);
this.Load += new System.EventHan dler(this.Page_ Load);

}
#endregion

private void btnPrint_Click( object sender, System.EventArg s e)
{
//add the database operation here
//simulate the data operation
System.Threadin g.Thread.Sleep( 1000);
lblMessage.Text = "Database operation finish!";

Page.RegisterSt artupScript("Op enPrintWindow", "<script
language='javas cript'>window.o pen('printpage' ,'_blank')</script>");

}
}

If you feel the suggestion not quite suitable for your situation. Please
feel free to let me know and provide me more information on your
requirement so that I can make more effort on it.

Regards,

Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

[Steven Cheng[MSFT]]

Hi jean,
Thanks for your followup, as for your problem in VB.NET code, would you
please try the below code, this is a test page
I created using VB.NET which provide the same function as the C# one:

---------------------------------aspx page--------------------------------
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>ButtonEv ent</title>
<meta name="GENERATOR " content="Micros oft Visual Studio .NET 7.1">
<meta name="CODE_LANG UAGE" content="Visual Basic .NET 7.1">
<meta name="vs_defaul tClientScript" content="JavaSc ript">
<meta name="vs_target Schema"
content="http://schemas.microso ft.com/intellisense/ie5">
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<table width="500" align="center">
<tr>
<td>
<asp:Button id="btnConfirm " runat="server" Text="Confirm
PostBack"></asp:Button>
</td>
</tr>
</table>
</form>
</body>
</HTML>
------------------------code behind page class---------------------
Public Class ButtonEvent
Inherits System.Web.UI.P age

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()

End Sub
Protected WithEvents btnConfirm As System.Web.UI.W ebControls.Butt on

'NOTE: The following placeholder declaration is required by the Web
Form Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
btnConfirm.Attr ibutes.Add("onc lick", "javascript:ret urn
confirm('Are you sure?')")
End Sub

Private Sub btnConfirm_Clic k(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles btnConfirm.Clic k
Response.Write( "<br>You have clicked Yes!")
Page.RegisterSt artupScript("Po pUpWindow", "<script
language='javas cript'>window.o pen('http://www.asp.net')</script>")
End Sub
End Class

----------------------------------------------------------------------------
------------

Regards,

Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)