Develop Reference

How I can execute C# code using Roslyn in ASP.Net web form?

I have peice of code in ASP.Net for execute code of C# using roslyn compiler. However, I use ASP.Net web forms to build user interface for execute the code. So,I want to take code from one textbox and by "Compile" button I show the result in another textbox.
So, I have this controls:
<%# Page Title="Home Page" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication2._Default" %>
<asp:Content runat="server" ID="FeaturedContent" ContentPlaceHolderID="FeaturedContent">
<section class="featured">
<div class="content-wrapper">
<hgroup class="title">
<h1>Compiler Tool</h1>
</hgroup>
<p>
You can compile your source code of C# using Roslyn Compiler from Microsoft</p>
<br/>
<p>
<asp:TextBox ID="TextBox3" runat="server" Height="185px" Width="480px" OnTextChanged="TextBox3_TextChanged"></asp:TextBox>
</p>
<p>
<asp:Button ID="Button2" runat="server" onclick="Button_Click" Text="Compile" ForeColor="Black" />
</p>
<p>
<asp:TextBox ID="TextBox2" runat="server" Height="138px" Width="390px" ></asp:TextBox>
</p>
</div>
</section>
</asp:Content>
<asp:Content runat="server" ID="BodyContent" ContentPlaceHolderID="MainContent">
</asp:Content>
And here the Handler event for it using C#:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using Roslyn.Scripting;
using Roslyn.Scripting.CSharp;
namespace WebApplication2
{
public partial class _Default : Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button_Click(object sender, EventArgs e)
{
var engine = new ScriptEngine();
var session = engine.CreateSession();
String code = TextBox3.Text;
session.Execute(code);
}
protected void TextBox3_TextChanged(object sender, EventArgs e)
{
}
}
}
How could I show the result of execution of Code (TextBox3) in TextBox2??
Iam beginner in ASP.Net environment, Any help??

I'm afraid I'm not near a dev pc, so I can't test the code, but here's what comes to mind:
You're not using the result of session.Execute(code);, so if a user were to put in 3+3, it would get executed, and the return value would be 6, but since it's not captured, it simply would go out of scope. If instead, you did object result = session.Execute(code);, the output would be the integer 6; You could then call .ToString() on result and put that in your text box.
And of course be careful allowing users to execute arbitrary code on your webserver...

Page_Load firing twice regardless of what i do

I am working on a simple asp.net login page. Yesterday, the code was working fine. Today, it isn't.
The only thing that changed between yesterday and today is that I shut down my pc and started it again today.
The problem is that Page_Load is firing twice (I checked all the answers/solutions, and none worked (image with empty src, handling the page_load manually, setting autoEventWireUp to false...)) none of these seemed to do the trick.
PLEASE can someone help me figure out why this is happening?
Here is the code for the page and its code behind:
<%# Page Title="Login" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="True" CodeBehind="Login.aspx.cs" Inherits="MatchingWebsite.Login" MaintainScrollPositionOnPostback="true" %>
<asp:Content runat="server" ID="FeaturedContent" ContentPlaceHolderID="FeaturedContent">
<section class="featured">
<div class="content-wrapper">
<hgroup class="title">
<h1><%: Title %></h1>
</hgroup>
</div>
</section>
</asp:Content>
<asp:Content runat="server" ID="BodyContent" ContentPlaceHolderID="MainContent">
<h2 align="center">Looking for someone to spend your time with? Want to have fun with someone you like?<br />You've come to the right place!!</h2><br /><br /><br />
<img alt="Cupid" src="Images/images.jpg" align="left" />
<img alt="Couple" align="right" src="Images/matchmaking.jpg" /><br /><br />
Username:<br />
<asp:TextBox ID="UserLogIn" runat="server" Width="174px"></asp:TextBox><br /><br />
Password:<br />
<asp:TextBox ID="UserPass" runat="server" Width="175px" TextMode="Password"></asp:TextBox><br />
<asp:Label ID="LoginError" runat="server" Text="Wrong Username/Password Combination. Try again." Visible="False"></asp:Label><br /><br />
<asp:Button ID="LoginButton" runat="server" OnClick="Login_Click" Text="Login" Width="81px" />
<asp:Button ID="NotRegistered" runat="server" Text="Not Registered?" Width="150px" OnClick="Not_Registered" />
</asp:Content>
<asp:Content ID="Content1" runat="server" ContentPlaceHolderID="HeadContent">
<style type="text/css">
.auto-style1
{
width: 300px;
height: 113px;
}
</style>
</asp:Content>
And here is the code behind:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace MatchingWebsite
{
public partial class Login : System.Web.UI.Page
{
Service1 proxy = new Service1();
protected void Page_Load(object sender, EventArgs e)
{
if (Session["username"]!=null && !IsPostBack)
Response.Redirect("~/EnterMyInfo.aspx");
}
protected void Login_Click(object sender, EventArgs e)
{
string user = UserLogIn.Text;
string pass = UserPass.Text;
if (user == "" || pass == "")
System.Web.HttpContext.Current.Response.Write("<SCRIPT LANGUAGE=\"JavaScript\">alert(\"Username/Password cannot be blank.\")</SCRIPT>");
else
{
if (proxy.login_service(user, pass))
{
Response.Redirect("~/EnterMyInfo.aspx");
}
else
LoginError.Visible = true;
}
}
protected void Not_Registered(object sender, EventArgs e)
{
Response.Redirect("~/SignUp.aspx");
}
}
}

Likely the webpage is really loaded twice. Check your javascripts (or any AJAX components?), or use the browser's debug console to monitor the network requests being sent. Try adding empty methods on the PreInit, PostInit (etc.) events and set breakpoints too, I bet those are hit twice as well.

Defining the click event for a Login control integrated button

Gooday. I have a login control, with an integrated user textbox and login button. I did this little test to see how it works, and surprisingly, after doing this:
protected void LoginButton_Click(object sender, EventArgs e)
{
TextBox userTextBox = (TextBox)Login1.FindControl("UserName");
userTextBox.Text = "You pressed the button";
}
the userTextBox doesn't change to "You pressed the button". Why?
Thanks. Anna
EDIT: Sure, here is the markup (most of it is generated automatically by the system when adding the Login control); you will notice a button LoginButton integrated in the Login:
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<asp:Panel ID="searchPanel" runat="server" DefaultButton="login1$LoginButton">
<asp:Login ID="Login1" runat="server"
FailureText="Logarea a esuat. Reincercati!" LoginButtonText="Logati-va!"
PasswordLabelText="Parola:"
PasswordRequiredErrorMessage="Trebuie sa introduceti parola."
RememberMeText="Tine-ma minte!" TitleText="Logare"
UserNameLabelText="Nume de utilizator:"
UserNameRequiredErrorMessage="Trebuie sa introduceti numele de utilizator.">
<LayoutTemplate>
<table border="0" cellpadding="1" cellspacing="0"
style="border-collapse:collapse;">
<tr>
<td>
<table border="0" cellpadding="0">
<tr>
<td align="center" colspan="2">
Logare</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">Nume
de utilizator:</asp:Label>
</td>
.........
<tr>
<td align="right" colspan="2">
<asp:Button ID="LoginButton" runat="server" CommandName="Login"
Text="Logati-va!" ValidationGroup="Login1" />
</td>
</tr>
</table>
</td>
</tr>
</table>
</LayoutTemplate>
</asp:Login>
</asp:Panel>
</asp:Content>
The code-behind goes liek this:
namespace Cinemax
{
public partial class Login : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//userTextBox.Focus(); // this sets the focus on the username textbox when the page loads
this.Title = CinemaxConfiguration.SiteName + ": Login";
}
protected void LoginButton_Click(object sender, EventArgs e)
{
TextBox userTextBox = (TextBox)Login1.FindControl("UserName");
TextBox userPassword = (TextBox)Login1.FindControl("Password");
//Button loginBtn = (Button)Login1.FindControl("LoginButton");
userTextBox.Text = "You pressed me";
if (User1.ConnAttempt(userTextBox.Text, userPassword.Text) == 1)
{
Session["User"] = userTextBox.Text;
Response.Redirect("Catalog.aspx");
}
else
{
}
}
}
}

Is the TestBox an ASP server control, and is runat=Server?

I might be wrong, but do you ever actually bind it back to the control.
You are creating a new textbox that is initialised from your login control.
You then set the text of that textbox, but i dont think thta will bind it back to the control itself.

If you debug the application, does it show that the text gets set?
also, do you have something in the Page_Load method that sets the text box value? you should put things in a
if(!IsPostBack)
{
userTextBox.Text = ""
}
statement

check if your control is runat=server and you have binded the control to the event
this.LoginButton.Click += new System.EventHandler(this.LoginButton_Click);

In your login control check if you are setting some value of userTextBox in Page_Load or any other event, as it appears that its value is being set from somewhere else.

you have to bind it to the Form. . .

how to display database information (evals? labels? literals?)

I have the following asp.net page
<form id="form1" runat="server">
<asp:Button id="display_button" runat="server" Text="Display" OnClick="Button1_Click" />
<asp:Button id="edit_button" runat="server" Text="Edit" OnClick="Button2_Click" />
<asp:Button id="save_button" runat="server" Text="Save" OnClick="Button3_Click" Visible="false" />
<br />
<asp:Label ID="Label1" runat="server"></asp:Label>
<br />
<asp:MultiView id="MultiView1" runat="server" ActiveViewIndex="0">
<asp:View id="View1" runat="server">
<asp:FormView id="view_program" runat="server">
<ItemTemplate>
<tr>
<td class="add_border_bold" nowrap">Status</td>
<td width="100%" class="add_border">
<img src="images/<%# Eval("status").ToString().Trim() %>_light_16.gif" alt="status" />
</td>
</tr>
<tr>
<td class="add_border_bold" nowrap">Short Title</td>
<td width="100%" class="add_border">
<%# Eval("short_title") %>
</td>
</tr>
</ItemTemplate>
</asp:FormView>
</asp:View>
<asp:View id="View2" runat="server">
<asp:FormView id="edit_program" runat="server">
<ItemTemplate>
<tr>
<td class="add_border_bold"nowrap">Status </td>
<td width="100%" class="add_border">
<asp:DropDownList id="p_status" runat="server"></asp:DropDownList>
</td>
</tr>
<tr>
<td class="add_border_bold" nowrap">Short Title</td>
<td width="100%" class="add_border">
<asp:TextBox runat="server" id="short_title" />
</td>
</tr>
</ItemTemplate>
</asp:FormView>
</asp:View>
</form>
with the following code behind page
using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.Common;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Text;
using System.Web;
using System.Web.UI.WebControls;
namespace TM_non_deploy
{
public partial class Program : System.Web.UI.Page
{
protected Label Label1;
protected Person myPerson;
protected TestProgram myProgram;
List<TestProgram> program = null;
protected void Page_Load(object sender, EventArgs e)
{
try
{
myPerson = new Person("user");
myProgram = new TestProgram("999");
//needs to be done to refresh info on page
program = new List<TestProgram> { myProgram };
view_program.DataSource = program;
view_program.DataBind();
if (!IsPostBack)
{
//create controls and bind data
edit_program.DataSource = program;
edit_program.DataBind();
DropDownList p_status = edit_program.FindControl("p_status") as DropDownList;
p_status.Items.Add(new ListItem("Green"));
p_status.Items.Add(new ListItem("Yellow"));
p_status.Items.Add(new ListItem("Red"));
p_status.SelectedValue = myProgram.Status.Trim();
TextBox short_title = edit_program.FindControl("short_title") as TextBox;
short_title.Width = 200;
short_title.Text = myProgram.Short_Title.Trim();
}
}
catch (Exception ex)
{
Response.Write(ex);
Label1.Text = ex.ToString();
}
}
protected void Button1_Click(object sender, EventArgs e)
{
MultiView1.SetActiveView(View1);
save_button.Visible = false;
}
protected void Button2_Click(object sender, EventArgs e)
{
MultiView1.SetActiveView(View2);
save_button.Visible = true;
}
protected void Button3_Click(object sender, EventArgs e)
{
DropDownList c_status = edit_program.FindControl("p_status") as DropDownList;
myProgram.Status = c_status.SelectedValue;
bool update = myProgram.SaveTestProgram();
if (update)
{
Label1.Text = "Saved!";
//needs to be done to refresh info on page
program = new List<TestProgram> { myProgram };
view_program.DataSource = program;
view_program.DataBind();
MultiView1.SetActiveView(View1);
save_button.Visible = false;
}
else
{
Label1.Text = "Error Saving";
}
}
}
}
basically, it is one page that both displays the fields, and then on a button click displays the editable version of all those fields. my question is, should i be displaying all of the information like i am now, with evals? or should i switch to labels, or literals, or something else entirely? i want to know before i get too far and have to undo a lot of work.
there will end up being a ton of fields on this page, all types from checkboxes to dropdowns to multiline textboxes, so i want to make sure i pick the path that works best for displaying all of those different kinds of data, even though in this example i am only displaying small text information.

If you just need to display text, there's no reason not to just use your <%# Eval("title") %>
One thing that should be noted though, is that it's better to cast your DataItem and access the properties that way instead of Eval as Eval has to use reflection and is more costly (maybe to the being of actually being noticeable if you have a lot of stuff repeated).
Use: <%# (Container.DataItem as SomeObject).Title %> instead of <%# Eval("Title") %>
Kind of outside the scope of your question but just a side note. :)

I wouldn't go for ServerSide Controls (Labels/Literals) unless you need formatting or to change the control values in other server side events. They just add to ViewState (unless ViewState is disabled on those Controls).
Coming to whether it's the right approach, I would suggest you use EditItemTemplate of FormView instead of 2 FormViews in Different Views & a MultiView Control!

Is it possible to reference a linkbotton outside an update panel as the update trigger?

THIS IS THE SITE.MASTER ASPX PAGE
<%# Master Language="C#" AutoEventWireup="true" CodeBehind="Site.master.cs" Inherits="Prototype4.SiteMaster" %>
<%# Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
alert("JS code in general: OK");
$(function () {
$("#lnkShowOtherPage").click(function () {
alert("OtherPagePanel length: " + $("#OtherPagePanel").length);
alert("OtherPagePanel load: " + $("#OtherPagePanel").load);
$("#OtherPagePanel").load("/EntryForms/OpenCase.aspx");
});
});
function updateClock() {
var currentTime = new Date();
var currentHours = currentTime.getHours();
var currentMinutes = currentTime.getMinutes();
var currentSeconds = currentTime.getSeconds();
// Pad the minutes and seconds with leading zeros, if required
currentMinutes = (currentMinutes < 10 ? "0" : "") + currentMinutes;
currentSeconds = (currentSeconds < 10 ? "0" : "") + currentSeconds;
// Choose either "AM" or "PM" as appropriate
var timeOfDay = (currentHours < 12) ? "AM" : "PM";
// Convert the hours component to 12-hour format if needed
currentHours = (currentHours > 12) ? currentHours - 12 : currentHours;
// Convert an hours component of "0" to "12"
currentHours = (currentHours == 0) ? 12 : currentHours;
// Compose the string for display
var currentTimeString = currentHours + ":" + currentMinutes + ":" + currentSeconds + " " + timeOfDay;
// Update the time display
document.getElementById("clock").firstChild.nodeValue = currentTimeString;
}
Case Management System
Welcome
!
[ ]
<%--Welcome:
!--%>
Welcome: Guest
[ Log In ]
</asp:LoginView>
<%-- [ <asp:LoginStatus ID="MasterLoginStatus" runat="server" LogoutAction="Redirect" LogoutPageUrl="~/Logout.aspx" /> ] --%>
</div>
<div class="topNav">
<asp:Menu ID="NavigationMenu" runat="server" CssClass="menu" EnableViewState="false" IncludeStyleBlock="false" Orientation="Horizontal">
<Items>
<asp:MenuItem NavigateUrl="~/Default.aspx" Text="Home"
ImageUrl="~/homeIcon.png"/>
<asp:MenuItem NavigateUrl="~/About.aspx" Text="About"
ImageUrl="~/aboutIcon.png"/>
<asp:MenuItem ImageUrl="~/contact_us_icon1.png" NavigateUrl="~/Contact.aspx"
Text="Contact Us" Value="Contact Us"></asp:MenuItem>
</Items>
</asp:Menu>
</div>
</div>
</div>
</div>
<div class="page" style="margin-top:5px;height:auto;">
<div class="right" style="border-style:solid;padding-left: 4px; padding-right:4px;">
<asp:Button ID="newsButton" runat="server" Text="News"
class="fnctButton" Height="25px" Width="70px" />
<div style="border-color: White; border-width:medium; border: medium;">
<p style="text-align:left; font-size:1.2em; color:White;">
This is a place holder for some real text that is displayed regarding news within the departement and additional links to external sites for news.
</p>
</div>
<asp:ContentPlaceHolder ID="RightNewsItem" runat="server"/>
</div>
<div class="left" style="border-style:solid;">
<asp:Button ID="functionButton" runat="server" Text="System Functions"
class="fnctButton" Height="25px" Width="170px" />
<asp:ContentPlaceHolder ID="LeftNavigation" runat="server">
</asp:ContentPlaceHolder>
</div>
<div class="middle" style= "border-bottom-style:solid;">
<asp:ContentPlaceHolder ID="MainContent" runat="server"/>
</div>
</div>
<div class="clear">
</div>
<div class="footer">
<span style="font-size: small;color: #FFFFFF;"><strong>Copyright 2011 JustRite Software Inc.</strong></span></div>
</form>
AND THIS ONE IS THE CASE ADMIN PAGE BASED ON THE MASTER PAGE. THERE ARE TWO BUTTONS ON THE LEFT NAVIGATION PANE THAT SHOULD LOAD A THIRD PAGE (OPENCASE OR ADDEXHIBIT) IN THE CENTRE SPACE DEPENDING ON WHICH BUTTON IS CLICKED. THE CASE ADMIN PAGE .ASPX BELOW.
<%# Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="CaseAdmin.aspx.cs" Inherits="Prototype4.CaseAdmin" %>
<%#PreviousPageType VirtualPath="~/Account/Login.aspx"%>
<div style="margin-top:20px; margin-bottom:20px;">
<p class="actionButton">
<a id="lnkShowOtherPage" href="#">Open Case</a>
</p>
<p class="actionButton"><asp:LinkButton ID="RegisterExhibitLinkButton"
runat="server" onclick="RegisterExhibitLinkButton_Click">Register Exhibit</asp:LinkButton> </p>
</div>
<div id="OtherPagePanel" style="width:auto">
</div>
THIS SECTION REPRESENTS THE CODE BEHIND FOR THE CASEADMIN PAGE THUS THE .CS CODES
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Prototype4
{
public partial class CaseAdmin : System.Web.UI.Page
{
//string userid;
//string strUsername;
protected void Page_Load(object sender, EventArgs e)
{
//strUsername = Session["Username"].ToString();
}
//public String AdminUserID
//{
// get
// {
// //return userid;
// }
//}
//userid = PreviousPage.AdminID;
//Response.Redirect("~/EntryForms/OpenCase.aspx", false);
/* if (PreviousPage != null)
{
TextBox SourceTextBox =
(TextBox)PreviousPage.FindControl("UserName");
if (SourceTextBox != null)
{
userid = SourceTextBox.ToString();
}
}*/
protected void RegisterExhibitLinkButton_Click(object sender, EventArgs e)
{
Response.Redirect("~/EntryForms/AddExhibit.aspx", false);
}
}
}
THIS IS ONE OF THE TWO PAGES THAT SHOULD LOAD DEPENDING ON THE BUTTON CLICK. I HAVE ATTACHED THE CODE FOR THE OPENCASE FORM SO THAT WOULD CORRESPOND WITH THE OPENCASE LINK BUTTON ON THE LEFT. OPENCASE.ASPX
<%# Page Language="C#" AutoEventWireup="true" CodeBehind="OpenCase.aspx.cs" Inherits="Prototype4.EntryForms.OpenCase" %>
<%#PreviousPageType VirtualPath="~/CaseAdmin.aspx" %>
<%# Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>
.casePage
{
width: 430px;
height:314px;
background-color:#3a4f63;
}
.style1
{
font-weight: normal;
color: #FFFFFF;
text-align: center;
}
.style2
{
font-weight: normal;
color: Black;
text-align: left;
margin-left: 20px;
margin-top:0px;
}
.style3
{
width: 85%;
}
.style4
{
width: 175px;
background-color: #808080;
}
.style5
{
background-color: #CCCCCC;
padding-left:10px;
}
</style>
Open Case
Form
<table class="style3" align="center">
<tr>
<td class="style4">
<p class="style2">
Case ID:
</p>
</td>
<td class="style5">
<asp:TextBox ID="caseIDTextBox"
runat="server" height="22px" width="154px"></asp:TextBox>
</td>
</tr>
<tr>
<td class="style4">
<p class="style2">
Case Description:
</p>
</td>
<td class="style5">
<asp:TextBox ID="caseDescTextBox"
runat="server" height="22px" width="154px"></asp:TextBox>
</td>
</tr>
<tr>
<td class="style4">
<p class="style2">
Case Administrator ID:
</p>
</td>
<td class="style5">
<asp:TextBox
ID="caseAdminIDTextBox" runat="server" height="22px" width="154px"></asp:TextBox>
</td>
</tr>
</table>
</div>
<div>
<table class="style3" align="center">
<tr>
<td align="left">
<asp:Button ID="openCaseBotton" runat="server" Text="Open Case"
onclick="openCaseBotton_Click" />
</td>
<td align="center">
<asp:Button ID="addExhibitBotton" runat="server" Text="Add Exhibit"
onclick="addExhibitBotton_Click" />
</td>
<td align="right">
<asp:Button ID="cancelButton" runat="server" Text="Cancel"
onclick="cancelButton_Click" /></td>
</tr>
</table>
</div>
</div>
</form>
AND LASTLY THE OPENCASE.CS PAGE
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
namespace Prototype4.EntryForms
{
public partial class OpenCase : System.Web.UI.Page
{
string adminString;
protected void Page_Load(object sender, EventArgs e)
{
adminString = "CA123";
}
protected void openCaseBotton_Click(object sender, EventArgs e)
{
//SQL connection string
SqlDataSource CSMDataSource = new SqlDataSource();
CSMDataSource.ConnectionString = ConfigurationManager.ConnectionStrings["CMSSQL3ConnectionString"].ToString();
//SQL Insert command with variables
CSMDataSource.InsertCommandType = SqlDataSourceCommandType.Text;
CSMDataSource.InsertCommand = "INSERT INTO Filing (FilingID, FilingDesc, DateOpened, FilingPriority, AdministratorID) VALUES (#FilingID, #FilingDesc, #DateOpened, #FilingPriority, #AdministratorID)";
//Actual Insertion with values from textboxes into databse fields
CSMDataSource.InsertParameters.Add("FilingID", caseIDTextBox.Text);
CSMDataSource.InsertParameters.Add("FilingDesc", caseDescTextBox.Text);
CSMDataSource.InsertParameters.Add("DateOpened", DateTime.Now.ToString());
CSMDataSource.InsertParameters.Add("FilingPriority", null);
CSMDataSource.InsertParameters.Add("AdministratorID", adminString.ToString());
int rowsCommitted = 0;
//Try catch method to catch exceptions during insert
try
{
rowsCommitted = CSMDataSource.Insert();
}
catch (Exception ex)
{
//error message displayed when exception occurs
string script = "<script>alert('" + ex.Message + "');</script>";
Response.Write("The following Error occurred while entering the records into the database" + " " + ex.ToString() + " ");
Response.Redirect("~/ErrorPage.aspx", false);
}
finally
{
CSMDataSource = null;
}
//Where to go next if insert was successful or failed
if (rowsCommitted != 0)
{
Response.Redirect("~/CaseAdmin.aspx", false);
}
else
{
Response.Redirect("~/ErrorPage.aspx", false);
}
}
protected void addExhibitBotton_Click(object sender, EventArgs e)
{
Response.Redirect("~/EntryForms/AddExhibit.aspx", false);
}
protected void cancelButton_Click(object sender, EventArgs e)
{
Response.Redirect("~/CaseAdmin.aspx", false);
}
}
}
ALL I WANT TO DO IS GET THE RESPECTIVE PAGES TO LOAD INSIDE THE MAIN CONTENT AREA (THE MIDDLE SECTION) WITHOUT RELOADING THE PAGE. ITS BEEN A LONG WAY COMING BUT PROVED SUCCESSFUL WITH A LOT TO LEARN BUT I JUST WANT TO KNOW HOW I CAN APPLY THIS SAME TECHNIQUE TO THE OTHER BUTTON CLICK(ADD EXHIBIT) SINCE IN THE AJAX CODE IN THE HEADER OF THE MASTER PAGE SPECIFIES THE URL ON JUST ONE PAGE. HOW DO I DO THAT FOR SUBSEQUENT PAGES THAT USE THE MASTER PAGE AND WOULD BE DOING SIMILAR ACTIONS. FOR EXAMPLE THE CASE MANAGER PAGE THAT LOOKS LIKE THIS.
<%# Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="CaseManager.aspx.cs" Inherits="Prototype4.CaseManager" %>
This is a place holder for allerts about cases to which the investigator has been assigned to.
<div style="margin-top:20px; margin-bottom:20px;">
<p class="actionButton"><asp:LinkButton ID="AllocateOfficerLinkButton" runat="server">Allocate Officer</asp:LinkButton> </p>
<p class="actionButton"><asp:LinkButton ID="ReallocateLinkButton" runat="server">Reallocate Officer</asp:LinkButton> </p>
<p class="actionButton"><asp:LinkButton ID="SetPriorityLinkButton" runat="server">Prioritize Case</asp:LinkButton> </p>
<p class="actionButton"><asp:LinkButton ID="OpenCaseLinkButton" runat="server">Open Case</asp:LinkButton> </p>
<p class="actionButton"><asp:LinkButton ID="RegisterExhibitLinkButton" runat="server">Register Exhibit</asp:LinkButton> </p>
</div>
I WANT TO TO DO SOMETHING SIMILAR LIKE IN THE CASE ADMIN PAGE BUT AM WONDERING WHAT THE CODES WILL ADD UP TO BE LIKE IN THE MASTER PAGE.
THANKS...

I actually just wanted to load a form
that is created in another asp. page
into the main content area...
I fear that what you need is not UpdatePanel but rather "ordinary" AJAX loading that other page contents into some element.. using jQuery it's as simple as:
$("#OtherPagePanel").load("OtherPage.aspx");
Where OtherPagePanel is the ID of some element in your .aspx code.
You can pass parameters to the other page over the URL, if you need to Post data it's still possible but requires some extra lines - let us know in such case.
Edit:
In the placeholder where you want the data from other page to appear, have this:
<div id="OtherPagePanel"></div>
Have such link in the other placeholder: (no need in LinkButton, ordinary HTML link is enough)
<a id="lnkShowOtherPage" href="#">Show other page</a>
Now in the <head> section of your master page add this code and it's all done:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
$("#lnkShowOtherPage").click(function() {
$("#OtherPagePanel").load("OtherPage.aspx");
});
});
</script>
You can also copy the jQuery.min.js file to your own server and change the src accordingly.
Edit 2:
In order to debug add such lines to the code, it will tell what went wrong:
<script type="text/javascript">
alert("JS code in general: OK");
$(function() {
alert("Page load: OK");
$("#lnkShowOtherPage").click(function() {
alert("Link click: OK");
$("#OtherPagePanel").load("OtherPage.aspx");
});
});
</script>
Reload the page and let us know what alerts you get.
Edit 3:
Based on the previous debug results, have this code now:
<script type="text/javascript">
$(function() {
$("#lnkShowOtherPage").click(function() {
alert("OtherPagePanel length: " + $("#OtherPagePanel").length);
alert("OtherPagePanel load: " + $("#OtherPagePanel").load);
$("#OtherPagePanel").load("OtherPage.aspx");
});
});
</script>
Edit 4 and hopefully last:
In order to load different page into different div by clicking different button in addition to everything you already have, have such code:
<script type="text/javascript">
$(function() {
$("#lnkShowOtherPage").click(function() {
$("#OtherPagePanel").load("OtherPage.aspx");
});
$("#lnkShowDifferentOtherPage").click(function() {
$("#DifferentOtherPagePanel").load("DifferentOtherPage.aspx");
});
});
</script>

Is it a postback trigger or an async postback trigger?
i think you can register controls as post back or async on a script manager level with:
Control oControl;
ScriptManager1.RegisterAsyncPostBackControl(oControl);
you could try that