I am looking write a javascript method as such called when a dropdownlist changes value
function GetStuff(sender, destID){
var dest = document.getElementById(destID);
this.PageMethods.GetStuffs(sender, dest, null, null);
[code]....
I have an ASP.NET PageMethod with the following signature:
<WebMethod()> _ Public Shared Function SaveCodes(ByVal codes As List(Of Code)) As String
I am trying to pass a JSON object to the PageMethod from the client side, but I get an error that the type String cannot be converted to type of List<Code>.
Here is the json that I'm building on the client and sending to the method:
[code]....
I have been able to pass in simple data types and a single instance of the Code class, but I can't seem to find the magin to pass a List to the server method. Can anyone show me what I'm doing wrong?
I am creating an ASP.NET website in Visual Studio 2010 (.NET 4.0) in C#.
I have a user control applicant_information.ascx which contains text boxes.
The page application.aspx contains this user control:
<%@ Register src="controls/applicant_information.ascx" tagname="applicant" tagprefix="uc1" %>
<uc1:applicant ID="applicant1" runat="server" />
The application.aspx page contains a multiview, and the applicant1 user control is in one of the views. The button continue takes the visitor to the next view which contains another user control of text boxes.
I want to write validation code on the continue_Click event which is in the application.aspx.cs page. Ideally, from the application.aspx.cs code behind page, I want to get the user input from a text box in applicant1.
Intellicense cannot seem to find any of the text boxes in applicant1 from application.aspx.cs.
I have a ASP.NET web page which contains a table of check boxes and a button. I need to find the IDs of all the check boxes which are checked when the button click happens. Once the list of IDs are collected, it needs to be passed on to the server. I am able to do it using jQuery and PageMethods.How can I achieve this in the button click handler in the code behind file? i.e. the IDs of all the check boxes which are checked when button click happens.
View 4 RepliesI want to render a user control in pagemethod and return the html back to client. But its getting annoying, I tried like many ways but nothing found working. The problem is that, the usercontrol require both HtmlHead and ScriptManager.
I tried this but it doesn't work(raise error : ScriptManger require in page) because ScriptManager must be inside HtmlForm but Page.Form always null.
[Code]....
I have a user control having a pagemethod. I want to call this pagemethod from my page using jquery's ajax() method?
View 5 RepliesI am not trying to activate an event or run a subroutine from a control from the masterpage, I am trying to activate or run from VB codebehind of the master page.
I have a button in a content page with a particular .click even that I want to activate from the masterpage codegehind periodically.
Also, how do I access or run a subroutine in a content page from codebehind in a master page.
I need to force SSL when going to the final checkout page (for example from default.aspx to checkout.aspx).
I need to pass variables to this check out page and tried to use server.transfer(https://www.mydomain.com/checkout.aspx). I then use previous page .Fincontrol to read text box and label name to this check out page. If I only do the server.transfer("~/checkout.aspx") then my I can read all vakues of my controls from the passing default.aspx page.
But when I force https:// then I cannot read the control values from default.aspx page.
Please give me some tips on how to get control values to the https:// destination page or if you have another tips on how to do it the right way, please let me know.
The Situation: When there multiple PageMethod calls in a single page, each of the method call holds a lock on the Session object thus blocking. The PageMethod calls can be made asynchronous only with @Page directive is turned to False|ReadOnly
Findings: When the Page directive is default (read/write) but the session is not used anywhere on the page, the calls are not blocked. Any read or write in to the session at the page level blocks the pagemethod calls.
The Problem: Making EnableSessionState=ReadOnly at the @Page directive is very restrictive and don't want to take that route. Can the pagemethod calls not block? and still access the session? (may be not write but just read)
I am exposing state_v value by using property in aspx.vb page..How can I create an instace of the page in User control to access this property...mypage.aspx
<%@ Register ........%>
<div>
<asp:dropdownlist ID="ddl" runat="server"></asp:Dropdownlist>
[code]...
I have a windows form control which is hosted inside an Asp.Net page.
Is there a way to pass value from this control back to the Asp.Net page. I have tried using
"document.forms[0].UserControl1.publicProperty" where publicProperty is a publicly defined property in the control but it is giving undefined.
[code]....
I have a web form that has drop down controls. These controls are data bound to a database. Now, I would like the results of the selected values to be shown on a new aspx page in a gridview or detailsview.
View 3 Repliesi am creating a simple web portal, but i am stuck in a aspx page which created by inheriting master page ,there is some jscript code, but i don't know where to put this code in that page.
have two user controls on one aspx page. UC1 has a grid which contains a link button column which user clicks. Based on the value of clicked cell, I need to show some data into UC2.How do I pass data from UC1 to UC2? How do I invoke a function of UC2 from UC1?
View 2 Repliesive created my own custom control, now in the code behind of the custom control file i can add Name.Click += new EventHandler(name); but on the codebehind of the page where ive used the custom control i cannot, is there anyway i can regsiter it as an available attribute to add? my code below and on the image the test codebehind click is not available, how can i get it?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class LargeButton : System.Web.UI.UserControl
{
public string JSFunc { get; set; }
public string SSFunc { get; set; }
public string ImgName { get; set; }
public string LinkText { get; set; }
protected void Page_Load(object sender, EventArgs e)
{
Link.Attributes.Add("onclick", "javascript:"+ JSFunc + ";");
Link.HRef = "javascript:;";
Link.Title = LinkText;
Img.Src = "~/App_Themes/" + Page.Theme + "/Images/Icons32/" + ImgName;
Img.Alt = LinkText;
//Link.ServerClick += new EventHandler(asd);
}
}
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="LargeButton.ascx.cs" Inherits="LargeButton" %>
<a ID="Link" runat="server" class="MenuItemLarge" clientidmode="Static" >
<img ID="Img" align="center" runat="server"/>
<br />
<%= LinkText %>
</a>
<MB:LgButton runat="server" ID="Save"
JSFunc="Save(this)"
ImgName="save_32.png"
LinkText="Save" />
I am working with crystal reports. I created a button on crystal report viewer toolbar using the following code protected void Page_Init(object sender,
EventArgs e)
{
Control ts = CrystalReportViewer1.Controls[2];
if (ts.ToString().Contains("ViewerToolbar"))
{
ImageButton BtnExport =
new
ImageButton();
BtnExport.ID = "BtnExport";
BtnExport.ImageUrl = "images/pdf.png";
BtnExport.Click += BtnExport_Click;
ts.Controls.Add(BtnExport);
}
UpdatePanel UpdatePanel1 =
new
UpdatePanel
();
System.Web.UI PostBackTrigger trigger =
new System.Web.UI.PostBackTrigger ();
trigger.ControlID = "BtnExport";
UpdatePanel1.Triggers.Add(trigger);
}
My problem is whenever I click the button to export the report, it shows an error like below: Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
Details: Error parsing near .....
I wanted to know if we can pass values from Parent page (in this case from Default.aspx page) to the user control and maintain those values on subsequent "Add/Load" of user control.
So in short, if I click the "Add" button it loads my "webusercontrol" and also I am able to pass my default.aspx dropdownlist value to this dynamically loaded user control and assign it to a "Label or Textbox" which resides in my "webusercontrol", now the problem is that the value doesn't persists! What I meant is , when I click "Add" button again the "webusercontrol" gets loaded again perfectly but now all my "Label's" in webusercontrol has the new selected value from the default.aspx dropdownlist.
So say for instance I have a Dropdownlist in Default.aspx page with Values "Apple, BlackBerry, Nokia" and initial value to be passed is "Apple", I click the "Add" button, now my "Label" inside webusercontrol has the value "Apple", perfect! Next when I click "Add" button again and select a different value to be passed this time say "BlackBerry" now I have 2 webusercontrol loaded on the page, so that means I have 2 "Labels" with different ID's, but now my first Label initially had the value "Apple" because that's what I had passed and now when I passed the value "Blackberry" both the labels of my webusercontrol has the value "BlackBerry" instead of one being "Apple" and another "BlackBerry"
Is there a way to resolve this issue? may be Dictionary List?
I have a page without codebehind where a control being registered via the following declaration:
<%@ Register TagPrefix="IBS" TagName="Schedule" Src="Schedule.ascx" %>
Then there is the following code:
[Code]....
And the page is working without any problems. I am trying to move the code to codebehind and as soon as I do it I get an error "Type 'Schedule_ascx' is not defined". What could be the problem?
I am able to find the controls of all of these Lables and TextBoxes accept the edateTB. This is strange to me because it is in the same view as the sdateTB. So why would edateTB return NULL when I try to use FindControl on it and sdateTB return the correct control?
Here is the codebehind where I am getting this error. There is more code in this, but I just thought I would include everything up to the part where I get the NULL error.
[Code]....
I'm using Visual Web Developer 2010. I placed a TextBox control on the form and want to be able to refer to it in the CodeBehind. Other controls like the DropDownList and the FormView are referenceable in CodeBehind, but the TextBox is not. I have RUNAT set to SERVER.
View 6 RepliesI have an asp:BulletedList controls with AJAX:PagingBulletedListExtender on my aspx page.
It gives error as: Microsoft JScript runtime error: Sys.ArgumentException: Value must not be null for Controls and Behaviors. Parameter name: element
If I removed, the asp:BulletedList controls and AJAX:PagingBulletedListExtender from my page then page run without any error.
I am not getting the cause of the error.
I am trying to set width and height of a DIV control in codebehind (C#). I have tried this code but are not sure of how to call a <DIV> control like this in C#.
[Code]....
The only thing that works in the code below for me is that it does display, so I know that I am dealing with the cotrect control. But I can't get the position to change.
[Code]....
Is it possible to set properties of an control inside a loop without using code behind? For example how can I set the Text property of the LinkButton inside the following loop at runtime, color being a POCO?
<table>
<%foreach (var color in GetColors()) {%>
<tr>
<td><asp:LinkButton runat="server" Text='<%# ??color.MyProperty?? %>' /></td>
</tr>
<%}%>
</table>
I've such a structure
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:Login ID="LoginControl" runat="server" onauthenticate="LoginControl_Authenticate" >
<LayoutTemplate>
<table>
<tr>
<td>
<asp:UploadFile ID="upFile"...
<td>
<asp:Button ID="LoginButton" onclick="LoginButton_Click"...
How get access to FileUpload control in codebehind? If there's no and it's simple e.g. upFile.FileName But if it's in this tags ther's error:
The name 'upFile' does not exist in the current context
How to change it?