.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Rearrange dynamically visible controls on a page

Posted By:      Posted Date: September 13, 2010    Points: 0   Category :ASP.Net
Hello,Here is what I am trying to do.I have a drop down list along with a 'Add' button (which are always visible). There are some other 'Label', 'TextBox', 'Button' in the page (which is not visible on load). Depending on the user selection from the first dropdown (and when click on 'Add' button), I would like to dynamically set some of the Controls visible.For example (as per below code): When User selects 'Email' ... Label3, TextBox3 and Button3 will be visible. Again when user will click Button3, all controls will be invisible. I was able to Show and Hide those controls as per user selection and button click. What I would like to do is, rearrange the controls. For example, If user selects 'Email' and click 'Add' button (Button5), It would display 'Label3', 'TextBox3', 'Button3'. Then if user selects 'Name' from the dropdown and click 'Add' button again, it would display 'Label1', 'TextBox1', 'Button1' below the Email controls. As of now it is apperaing on sequence as listed in html (Name controls always come first when visible, then 'Phone', then 'Email'). I would like to display the controls as sequesnce as user selects.And next is when we will click the Button3 (which will hide the email controls), All other controls below email co

View Complete Post

More Related Resource Links

How can I create a custom control that adds other controls visible to the page hosting my custom con


I want to create a custom control where I define several specifically named DIV sections.  The code-behind logic of the custom control will perform operations on these named DIV sections.  The page where the custom control is hosted needs to be able to add named controls to the DIV sections and perform operations on these named controls added to the DIV sections.

Let me explain a little further.  In the custom control, I want to have code behind logic that fires the following Page Event and uses a condition to make one or another specifically named DIV section visible or not:

    < _
    ToolboxData("<{0}:BaseDetails runat=""server""></{0}:BaseDetails>") _
    > _
    Public Class BaseDetails
        Inherits UserControl

        Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender
            DetailsNameDiv1.Visible = False
            DetailsNameDiv2.Visible = False

Dynamically Create Controls in ASP.NET by Using Visual C# .NET

This article demonstrates how to dynamically create a control for an .aspx page. The sample project does the following:
Creates two TextBox controls.
Verifies that the contents (TextBox.text) and the attributes of the TextBox are saved across posts to the server.
Illustrates handling events that are posted by a dynamically-created control

Dynamically Create Controls in ASP.NET with Visual Basic .NET

This step-by-step article describes how to dynamically create controls for an ASPX Web page.

The sample project does the following:
It creates two TextBox controls.
It verifies that the TextBox contents (TextBox.text) and attributes are saved across posts to the server.
It describes how events that are posted by a dynamically created control are handled.

Not getting multiple composite controls on master page


I have created two composite controls in the same assembly and registered that assembly in a master page using <%@ Register tag.

When I try to use these controls using the registered tag prefix I am getting only one control along with the tagprefix .

How to get all the composite controls present in the registered assembly?

Adding carriage returns between 2 dynamically created controls in an HtmlTableCell


The title pretty much explains it. Here is what i'm trying to do...

 Private Sub LoadGrid_CommentsField(ByVal Row As HtmlTableRow, ByVal BookingNumber As String, ByVal CommentsText As String)
  Dim Txt As TextBox
  Dim Cmd As ClickOnceButton.ClickOnceButton

  Txt = New TextBox
  Txt.ID = "txtComment_" & BookingNumber
  Txt.CssClass = "TFAppControls"
  Txt.TextMode = TextBoxMode.MultiLine
  Txt.MaxLength = 500
  Txt.Width = New Unit(95, UnitType.Percentage)
  Txt.Text = CommentsText

  Row.Cells(cComments).InnerHtml &= "<br/>"

  Cmd = New ClickOnceButton.ClickOnceButton
  Cmd.DisableAfterClick = True
  Cmd.Text = "Save Comments"
  Cmd.ID = "cmdSaveComments_" & BookingNumber
  Cmd.CssClass = "TFAppButtons"
  Cmd.EnableViewState = False
 End Sub

On the line where i try and update the InnerHtml, i get the following error; "Cannot get inner content of  because the contents are not literal."

How to dynamically create user controls ?



can you explain how to create user control dynamically in a web form ?When i am creating server controls of user controls are not instantiated and it is not getting initialized .when i am tyying to initialize its properties error occurs tha object instance not created .

Any suggestion ? 

Cannot set custom attributes on mobile controls in this page



I am beginner at mobile Pages with ASP.NET. And i want to make an application with contains  a few TextBox that have different size.

it's my sample code here:

<%@Page Inherits= "System.Web.UI.MobileControls.MobilePage" Language= "C# " %>
<%@ Register TagPrefix= "Mobile" Namespace= "System.Web.UI.MobileControls " Assembly= "System.Web.Mobile" %>
<Mobile:Form runat="server" id="form1" Paginate="true" >
<Mobile:Panel Paginate="True" runat=&

dynamically add record in page


I am creating page dynamically using this. I want to read the file, which is dynamically created and show content on page from database like 40 record in each page.

String root = Server.MapPath("~");
        String pgTemplate = root + "\\myPageTemplate.tmp";
        StringBuilder line = new StringBuilder();        
        using (StreamReader rwOpenTemplate = new StreamReader(pgTemplate))
            while (!rwOpenTemplate.EndOfStream)

        int ID = 0;
        string SaveFilePath = "";
        string SaveFileName = "";
        Random ran = new Ran

Creating asp.net page dynamically

Hi All:  I have a requirement that I need to create asp.net page dynamically for each folder inside a specific folder. I know the code to traverse each folder but I don't know how to create a new page dynamically and show the contents. Please help me on this.   Regards,  Asif HameedHi All: I have a requirement that I need to create asp.net page dynamically for each folder inside a specific folder. I know the code to traverse each folder but I don't know how to create a new page dynamically and show the contents. Please help me on this.  Regards, Asif Hameed

Maintain Controls State on Master Page.

I have Web Application which uses the Logged In User (Authenticated User) to query his Profile Data from Adabas/Unix using OLEDB. The application provides the user with about 21 different pages (Basic Info, Employment Info, Education, Dependants, Financial Info ...). The web application has a master page, and each profile data page is based on a User Control loaded in the Child ASPX Page. Since we are migrating our legacy applications from Adabas/Unix to SAP, the development Team has prepared web services to query for the same Profile Data from SAP using Web Services. Now, we have to modify the web application to consume the web services instead of using OLEDB to query Adabas. Since we are in the testing phase, and we have only very limited data in SAP, I have to provide temporary control to allow test query the Staff Profile for a Specified User (instead of the Authenticated User) and to select the Source: 1. SAP, or 2. Adabas.   So I am thinking to add the following "Control Section" in the Master Page:<div runat="server" id="divSAPTest" class="SAPTest"> <span>Test SAP Web Services. Enter Staff ID: </span> <asp:TextBox ID="txtSAPStaffID" runat="server" Width="60px"></asp:TextBox> <span>From: </span> <asp:DropDo

how to apply validation controls on Gridview which is created dynamically

 hi, i created a gridview with two columns and 8 rows dynamically. All the rows are empty and editable at runtime. I am giving column names for this grid from some other .aspx page by passing column names using querystring.Because i am using this grid for three different pairs of column names.  i would like to know how to apply Required Field Validator, Regular Expression Validator  and Range Validator on Gridview textboxes. So that by using those validators i want to validate user inputs. And i would also like to know how to add rows at runtime for this grid. I am using ASP.net 2.0 and C#.net for this.(Visual Studio 2005) The code i am using to create gridview is below. <%@ Page Language="C#" AutoEventWireup="true" CodeFile="LoadData.aspx.cs" Inherits="LoadData" %>  <form id="form1" runat="server">  <div> <asp:GridView ID="GrdDynamic" runat="server" AutoGenerateColumns="False" ForeColor="#333333" BorderColor="GradientInactiveCaption" BorderStyle="Solid" style="z-index: 108; left: 24px; position: absolute; top: 13px">  <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />  <RowStyle BackColor="#EFF3FB"

Page has one or more controls that do not correspond with con

I'm posting this in VS 2008 forum since I wasn't getting this error when this was in VS 2005.  It's complaining about my content tags but I have not a clue why, everything looks fine to me.  I've included the master page so what's the deal? <%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Sub.master.cs" Inherits="Web.MasterPages.Sub" %> <!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 id="Head1" runat="server"> <title id="Title" runat="server" /> <link id="main_styles" href="~/main.css" rel="stylesheet" type="text/css" /> <style type="text/css"> body { background-image: url(images/back.jpg); } .style1 {color: #B92722} #bigImg { position: absolute; display: none; } </style> </head> <body class="Mainbody"> <form id="form1" runat="server"> <!-- Main Table --> <div class="centered-table"> <table width="100%" border="0" cellspacing="0" cellpadding="0"&g

Dynamically change the page footer height

Hi, I want to dynamically change the page footer height based on a condition? Is that possible?   Thanks in Advance  

How to I apply an XAML declared animation to multiple controls dynamically?

Hello, How to I apply an XAML declared animation to multiple controls dynamically? Here is the XAML declared animation: <Window.Resources> <Storyboard x:Key="TextBlock_SB"> <DoubleAnimation Storyboard.TargetName="TextBlock_1" Storyboard.TargetProperty="(TextBlock.Opacity)" From="1.0" To="0.75" Duration="0:0:0.5" AutoReverse="True" RepeatBehavior="Forever" /> </Storyboard> Here is the code that starts the animation for TextBlock_1: (this.Resources["TextBlock_SB"] as Storyboard).Begin(); I want to apply the same storyboard/animation to TextBlock_2 and TextBlock_3 and perhaps others.  How do I do that without defining more XAML storyboards? Regards, Robert  

Cannot retrieve values of dynamically generated controls

Hi All, I am creating a user control which contains checkboxes and labels that needs to be created on fly. The dynamic generation of these controls depend on the values retreived from a SPlist. I have several panels that display items queried from the list on the basis of a selection criteria. On a button click event I need to capture all the selected values from the controls that were generated dynamically.  When I traverse each dynamic control that I added to the panel, I dont see their values. I tried using recursive retrieval of the control from the page as well but it just behaves crazy, it treats a radio button as a checkbox and returns a value that I am not looking for. I am not using the the page_load() or any other event, I use the button handler on my custom method. I was thinking for ViewState, ControlsState or SessionState. I assume ViewState may not work on this as the dynamically generated controls need to be in the page_load event. Please guide as this getting way more complicated than what I had ever thought of it to be.

Master page controls

If I have a hidden control in the master page and access it in a content page, I m using like as follows   document.getElementById('ctl00_ctl00_Container_hdnfield').value Actually the id I have mentioned is the dynamically generated one, it may change if do some changes. Can I know is there any way to get the dynamically created id for the controls? Regards Zameer  

Keep part of the page always visible

I have an C#.net page to display radio stations.  Itis made in an collapsable menuds(accordian).  My problem is that I have to keep part of the page always visible(the stop, play button and volume control). Even if the user scrolls the page or expands menus the button controls should always be visible on the page.  How can I do this? Please help!
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend