I can't get this asp.net page do write to a file. I was following this guide. I am not sure what i am doing wrong because i can use this button to change label text, but not to print "Hello World" into a text file in the same directory.
<%# Page Language="C#" %>
<script runat="server">
void Button1_Click(Object sender, EventArgs e)
{
using (StreamWriter w = new StreamWriter(Server.MapPath("~/Saved Layouts.txt"), true))
{
w.WriteLine("Hello World"); // Write the text
}
}
</script>
<html>
<head>
<title>Single-File Page Model</title>
</head>
<body>
<form runat="server">
<div>
<asp:Label id="Label1"
runat="server" Text="Label">
</asp:Label>
<br />
<asp:Button id="Button1"
runat="server"
onclick="Button1_Click"
Text="Button">
</asp:Button>
</div>
</form>
</body>
</html>
The problem is probably this error "The type or namespace name 'StreamWriter' could not be found". That's because there is no using System.IO present. To fix this write out the complete NameSpace of the StreamWriter.
using (System.IO.StreamWriter w = new System.IO.StreamWriter(Server.MapPath("~/Saved Layouts.txt"), true))
{
w.WriteLine("Hello World"); // Write the text
}
Or add it to the single page
<%# Import Namespace="System.IO" %>
Related
iam writing code for button onclient event with js to print the webpage and onclick event for generating pdf and downloading it ..both must be done in a single action..
but when i cancel print which i onclient click event then oncick event is firing .
<script type="text/javascript">
function PrintPage()
{
window.print();
return true;
}
<asp:Button ID="Button3" runat="server" Text="PTPDF" UseSubmitBehavior="false" OnClick="Button3_Click1" OnClientClick ="javascript:PrintPage();" />
</div>
protected void Button3_Click1(object sender, EventArgs e)
{//here is the code for pdf generation,
this code must get fired automatically after onclient click event without users action}
Below code works perfectly on my end and illustrateson how both OnClick and OnClientClick works at a same time-
ASPX -
<%# Page Language="C#" AutoEventWireup="true" CodeFile="Click.aspx.cs" Inherits="Click" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script language="javascript" type="text/javascript">
function confirmthis()
{
document.getElementById('TextBox2').value = 'onclient works';
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" OnClientClick="return confirmthis();" Text="Click Me" /></div>
</div>
</form>
</body>
</html>
Inline code -
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Click : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
TextBox1.Text = "OnClick works";
}
}
Please paste the above code at your end and let me know if it still doesn't work.
Thanks!!
I'm sorry in advance if this seems to be a beginners question and wasted some of your time, but it does really bother me and I would really appreciate it if someone could help.
I'm simply creating a "zone" if you will, where the user inputs a word/sentence which are tasks, and then can check if the task was completed or not and/or if the word/sentence needs to be changed.
So in the end, what I need is a textbox lets say where the user inputs a specific number supposed x, and generates x times this div.
Here is the code (unfortunately I could not post pics since I do not have enough reputation..)
ASP.NET code
<%# Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="GMode.tiz.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>whatevz</title>
<link href="StyleSheet1.css" rel="stylesheet" />
<script src="../jquery-1.11.3.min.js"></script>
<script src="../functions.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div class="singleContainer">
<div class="lblPlace">
<asp:Label ID="lbl" runat="server" Text="Input Task"></asp:Label>
<asp:TextBox ID="hi" CssClass="txtBox" runat="server"></asp:TextBox>
</div>
<asp:Button ID="save" runat="server" CssClass="UniversalBtn" OnClick="btnCheck_Click" />
<asp:Button ID="cancel" runat="server" CssClass="UniversalBtn" OnClick="btnCancel_Click" />
<asp:Button ID="edit" runat="server" CssClass="UniversalBtn" />
<asp:Button ID="submit" runat="server" CssClass="BtnSubmit" OnClick="btnSubmit_Click" Text="DONE"/>
</div>
</form>
</body>
</html>
C# code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace GMode.tiz
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnCheck_Click(object sender, EventArgs e)
{
lbl.CssClass = "done";
}
protected void btnCancel_Click(object sender, EventArgs e)
{
lbl.CssClass = "undone";
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
if (hi.Text == "")
{
lbl.Text = "No Value";
}
else
{
lbl.Text = hi.Text;
}
}
}
}
So basically I want to dynamically create <div class="singleContainer"> with everything inside it x times (x defined by the user).
I'm going about this more on the fact like it's C++. When you can dynamically create an array with a specific number x.
Please tell me if you need more of the code. There are still the css and js files that I did not post.
Thank you,
Jack
I think that for this the best option is to use AngularJS, you can do something like this:
<html>
<head>
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" />
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.4/angular.min.js"> </script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.4/angular-resource.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.4/angular-route.min.js"></script>
<script>
var app = angular.module('app', [])
app.controller('PostsCtrl', function ($scope) {
$scope.change = function (){
$scope.listDivs = [];
for(var i=0;i<$scope.createDiv;i++) {
$scope.listDivs.push(i);
}
}
})
</script>
</head>
<body ng-app='app'>
<div ng-controller='PostsCtrl' class='container'>
<input ng-model='createDiv' ng-change="change()"/>
<ul class='list-group'>
<li ng-repeat="post in listDivs" class='list-group-item'>
<div class="singleContainer">
<div class="lblPlace">
<asp:Label ID="lbl" runat="server" Text="Input Task"> </asp:Label>
<asp:TextBox ID="hi" CssClass="txtBox" runat="server"> </asp:TextBox>
</div>
<asp:Button ID="save" runat="server" CssClass="UniversalBtn" OnClick="btnCheck_Click" />
<asp:Button ID="cancel" runat="server" CssClass="UniversalBtn" OnClick="btnCancel_Click" />
<asp:Button ID="edit" runat="server" CssClass="UniversalBtn" />
<asp:Button ID="submit" runat="server" CssClass="BtnSubmit" OnClick="btnSubmit_Click" Text="DONE"/>
</div>
</li>
</ul>
</div>
</body>
</html>
Put your div into a usercontrol (ascx file).
In your main page add a placeholder:
<asp:PlaceHolder runat="server" ID="PlaceHolder1" />
in code behind you can add your control as often as you want:
yourControl= LoadControl("~/Controls/yourControl.ascx");
PlaceHolder1.Controls.Add(yourControl);
I've absolutely exhausted Google and I can't find a solution to this problem. When click a button on my .aspx page, the corresponding function is not called from .aspx.cs file. I'll just post my code and see if there are any takers.
AddUser.aspx:
<%# Page Title="" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="AddUser.aspx.cs" Inherits="AddUser" %>
<asp:Content ID="tb_AddUserHeader" ContentPlaceHolderID="tb_HeaderPlaceHolder" Runat="Server">
</asp:Content>
<asp:Content ID="tb_AddUserContent" ContentPlaceHolderID="tb_ContentPlaceHolder" Runat="Server">
<h1>Add User</h1>
<fieldset>
<asp:Label ID="tb_lblAddUser_Authorized" runat="server" Visible="false">
<br />
<table>
<tr>
<td><u>Username:</u></td>
<td><asp:TextBox ID="tb_txtbxUsername" runat="server" Width="200"></asp:TextBox></td>
</tr>
<tr>
<td><u>Password:</u></td>
<td><asp:TextBox ID="tb_txtbxPassword" runat="server" Width="200" TextMode="Password"></asp:TextBox></td>
</tr>
<tr>
<td><u>Account Type:</u></td>
<td><asp:DropDownList ID="tb_ddAccountType" runat="server">
<asp:ListItem Value="v" Text="Viewer"></asp:ListItem>
<asp:ListItem Value="t" Text="Tester"></asp:ListItem>
<asp:ListItem Value="a" Text="Admin"></asp:ListItem>
</asp:DropDownList></td>
</tr>
<tr>
<td><asp:Button ID="tb_btnAddUserSubmit" runat="server" Text="Submit" OnClick="tb_btnAddUserSubmit_Click" UseSubmitBehavior="true" /></td>
</tr>
</table>
<br />
</asp:Label>
<asp:Label ID="tb_lblAddUser_Output" runat="server" Visible="false"></asp:Label>
<asp:Label ID="tb_lblAddUser_Unauthorized" runat="server" Visible="true">
<br />Only administrators are authorized to view this page
<br />
<br />
</asp:Label>
</fieldset>
</asp:Content>
and my corresponding codebehind file, AddUser.aspx.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using tbBusinessObjects;
using tbWebClientControllers;
public partial class AddUser : System.Web.UI.Page
{
tbWebUserController m_userController;
protected void Page_Load(object sender, EventArgs e)
{
m_userController = new tbWebUserController();
//if (this.IsPostBack)
//{
// String username = tb_txtbxUsername.Text;
// //tb_btnAddUser_Click(sender, e);
//}
//else
{
if (HttpContext.Current.User.Identity.IsAuthenticated)
{
FormsIdentity id = (FormsIdentity)HttpContext.Current.User.Identity;
FormsAuthenticationTicket ticket = id.Ticket;
if (ticket.UserData == "a")
{
tb_lblAddUser_Authorized.Visible = true;
tb_lblAddUser_Unauthorized.Visible = false;
}
}
}
}
protected void tb_btnAddUserSubmit_Click(object sender, EventArgs e)
{
tbUser user = new tbUser();
user.m_username = tb_txtbxUsername.Text;
user.m_password = tb_txtbxPassword.Text;
user.m_type = tb_ddAccountType.SelectedValue.ToCharArray()[0];
if (m_userController.InsertUser(user))
{
tb_lblAddUser_Output.Text = "<br />User was successfully added<br /><br />";
}
else
{
tb_lblAddUser_Output.Text = "<br />There was an error adding user<br /><br />";
}
tb_lblAddUser_Output.Visible = true;
tb_lblAddUser_Authorized.Visible = false;
}
}
I've set multiple breakpoints in my Click function and they're never hit. I tried simply catching my Page_Load function with a Page.IsPostBack, but it none of the data is saved from the textboxes or dropdown.
I've also tried changing the UseSubmitBehavior tag between true and false and removing it completely and it still doesn't work. I've copy/pasted as much code from other pages that use button events that are working and it still won't work. I have absolutely no idea what is going on right now. >_<
EDIT: And just in case it would help in any way, here is my Site.master...
<%# Master Language="C#" AutoEventWireup="true" CodeFile="Site.master.cs" Inherits="SiteMaster" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head id="tb_head" runat="server">
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>KersTech Hydraulic/Electric Hybrid Data Recording and Telemetry</title>
<link href="tb_style.css" rel="stylesheet" type="text/css" media="screen" />
<asp:ContentPlaceHolder id="tb_HeaderPlaceHolder" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="tb_formBody" runat="server">
<!-- Begin wrapper -->
<div id="tb_wrapper">
<asp:Label ID="tb_lblFormsAuthenticationUserData" runat="server" Text="Nothing" Visible="false"></asp:Label>
<!-- Begin top -->
<div id="tb_top">
<ul id="tb_nav">
<asp:Label ID="tb_lblMasterMenu" runat="server"></asp:Label>
<li><asp:LoginStatus ID="tb_LoginStatus" runat="server" LogoutAction="Redirect" LogoutPageUrl="Logout.aspx" /></li>
</ul>
<div id="tb_Greeting">
<asp:LoginView ID="tb_MasterLoginView" runat="server">
<LoggedInTemplate>
Logged in as <asp:LoginName ID="MasterLoginName" runat="server" />
</LoggedInTemplate>
</asp:LoginView>
</div>
<asp:Label ID="test" runat="server"></asp:Label>
</div>
<!-- Begin content -->
<div id="tb_content">
<asp:ContentPlaceHolder id="tb_ContentPlaceHolder" runat="server">
</asp:ContentPlaceHolder>
</div>
<!-- End content -->
<!-- Begin footer -->
<div id="tb_footer"><div id="something">
<!-- Begin badges -->
<div>
<img src="http://www.w3.org/Icons/valid-xhtml10" alt="Valid XHTML 1.0 Strict" height="31" width="88" /> <!-- HTML validation badge -->
<a href="http://jigsaw.w3.org/css-validator/check/referer">
<img style="border:0;width:88px;height:31px" src="http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!" /> <!-- CSS validation badge -->
</a>
</div></div>
<!-- End badges -->
</div>
<!-- End footer -->
</div>
<!-- End wrapper -->
</form>
</body>
</html>
EDIT2: I moved my Button outside of my label and manually set the button's visibility along with the label's visibility (that was the only reason I was using those labels in the first place), and it worked just fine. I just spent the last hour and a half trying to figure this out, so in case anyone else ever has the same issue again:
ASP:BUTTONs WILL NOT FIRE FROM INSIDE OF ASP:LABELs!!!!!
try butting this line in the page load
tb_btnAddUserSubmit.Click += new EventHandler(tb_btnAddUserSubmit_Click);
I think the problem may be that the click handler is not register in the click event
Have you copied this method from other page/application ? if yes then it will not work, So you need to delete the event and event name assigned to the button then go to design and go to button event properties go to onClick event double click next to it, it will generate event and it automatically assigns event name to the button. this should work
Try AutoEventWireup="false" in your page headers. I haven't worked in ASP.net in like 5 years but I remember that would sometimes break stuff.
I cannot find your tb_btnAddUserSubmit declaration in .cs code behind, and the handler.
You need to have a AddUser.Designer.cs class. Make sure to check that.
You also need to register the event in OnInit, instead of Page_load.
I have a button in my asp.net web application. When i clicking the button it will hide the text box in the same webs application .
If is it possible that anyone help me its very useful
Thank you
If the button is an html button then you can use javascript to do this:
onclick of button call following js:
document.getElementById(textBoxId).style.display = "none";
or
document.getElementById(textBoxId).style.visibility = "hidden";
from code behind TextBoxId.Visible = false;
from Javascript document.getElementById('<%=TextBoxId.ClientId%>').style.dispaly="none";
You can do it with JQuery:
<script>
$("#myButton").click(function () {
$("#myTextBox").hide("slow");
});
</script>
This is what you are looking for:
HideTextBox.aspx
<%# Page Language="C#" AutoEventWireup="true" CodeFile="HideTextBox.aspx.cs" Inherits="HideTextFields" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<br />
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<br />
<br />
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
<br />
<asp:Button ID="BtnHide" runat="server" onclick="Button1_Click"
Text="Hide TextBox" />
</div>
</form>
</body>
</html>
And the code behind file
HideTextBox.aspx.cs
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class HideTextFields : System.Web.UI.Page
{
protected void Button1_Click(object sender, EventArgs e)
{
foreach (Control c in form1.Controls)
{
if (c is TextBox)
c.Visible = false;
}
}
}
.html
<%# Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<link href="dark.css" rel="stylesheet" type="text/css" id="stylesheet" />
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
<asp:Label ID="CaptionLabel" runat="server"></asp:Label>
<asp:TextBox ID="NumberTextbox" runat="server">(empty)</asp:TextBox>
<asp:Button ID="SquareButton" runat="server" Text="Square" style="background-color:Blue; color:White;" />
<asp:Label ID="ResultLabel" runat="server" Text="(empty)" CssClass="reverse"></asp:Label>
<p>
<asp:Label ID="Label1" runat="server" CssClass="footer1"
Text="Label Label Label Label LabelLabelLabel Label Label Label Label Label Label Label"></asp:Label>
</p>
<asp:RadioButton ID="radioDark" runat="server" AutoPostBack="True"
Checked="True" GroupName="grpSelectStylesheet"
oncheckedchanged="SwitchStylesheets" Text="Dark" />
<br />
<asp:RadioButton ID="radioLight" runat="server" AutoPostBack="True"
GroupName="grpSelectStylesheet" oncheckedchanged="SwitchStylesheets"
Text="Light" />
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
</form>
</body>
</html>
.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void SwitchStylesheets(object sender, EventArgs e)
{
if (radioDark.Checked)
stylesheet.Href = "dark.css";
if (radioLight.Checked)
stylesheet.Href = "light.css";
}
protected void Button1_Click(object sender, EventArgs e)
{
int count=DateTime.Now.Second;
for (int i = 0; i < count; i++)
{//for
Label q = new Label();
q.ID = DateTime.Now.Second.ToString();
q.Text = DateTime.Now.Second.ToString();
string spacee = "<br />";
Label space = new Label();
space.Text = spacee;
form1.Controls.Add(q);
form1.Controls.Add(space);
}//for
}
}
When the button is clicked, it works as it should but the footer does not register the expansion of the page.
Your code is completely wrong. you cannot change the stylesheet like this for a control even if the autopostback is set to true.
UPDATE: Here's how you should do it:
1- Remove the .css reference from your page.
2- Add this method to your page:
private void UpdateStylesheet(string filepath)
{
HtmlLink newStyleSheet = new HtmlLink();
newStyleSheet.Href = filepath;
newStyleSheet.Attributes.Add("type", "text/css");
newStyleSheet.Attributes.Add("rel", "stylesheet");
Page.Header.Controls.Add(newStyleSheet);
}
3- Add this line to your page_load event:
UpdateStylesheet("dark.css");
4- Handle the SwitchStylesheets like this:
if (radioDark.Checked)
UpdateStylesheet("dark.css");
if (radioLight.Checked)
UpdateStylesheet("light.css");