Dynamically Loading Data In Listbox?
Aug 2, 2010I am new to .NET. I want to load data from my table to listbox at runtime.
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My Page_Load Function
void Page_Load(object sender, EventArgs e)
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My Click Function
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View 3 RepliesHow To Dynamically Generate Listbox Items
Nov 23, 2010This has got to be more simple than I'm making it. I want to generate a listbox with years for the values. It needs to be dynamic. It needs to list from 17 years ago to 25 years ago. This is what I have so far, I get the correct number of items in the listbox, but I don't get the correct value. They are all "1985".
<%
Dim y As Integer
Dim NextTime As Date = Now
Dim bday_yr As New ListItem()
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Mar 26, 2011I am designing a program that will let me enter the name of an item to swap and adds the swap to an array list when a button Add is pressed. Once the item is added to the array list a Sub Procedure should be called which displays the contents of the array list in a list box.
The system will also allow me to remove items from the array list using a Remove button
followed by updating array list.
I have done some part which puts item into the listbox1 which i named lstSwapList.I would need some assistance on the Sub Procedure to display the Value or Description on the other listbox2 which i have also named lstContent,if a value is selected from the listbox1.
I would also want to know how to update the Listbox content,However i hv added a sample of the way i guess it may be.
Any complete solution from anybody on the Sub Procedure and the Update Swap procedure will be greately appreciated.
The script below is what i have done so far.
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub lstContent_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lstContent.SelectedIndexChanged
End Sub
Protected Sub lstSwapList_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lstSwapList.SelectedIndexChanged
End Sub
Protected Sub btnAddSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAddSwap.Click
Dim SwapValue As String = "Sixty Pounds"
Dim Counter As Integer = 8
Dim SwapN0 As Integer
lstSwapList.Items.Add(SwapValue)
lstSwapList.Items.Add(Counter)
lstSwapList.Items.Add(New ListItem("300", "1"))
lstSwapList.Items.Add(New ListItem("ASP.Net", "2"))
lstSwapList.Items.Add(New ListItem("Programming", "3"))
SwapN0 = lstSwapList.SelectedValue
For Counter = 0 To -1
SwapN0 = lstContent.Items.Count
Next
End Sub
Protected Sub btnDeleteSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDeleteSwap.Click
lstSwapList.Items.Remove(lstSwapList.SelectedValue)
End Sub
Protected Sub btnUpdateSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpdateSwap.Click
End Sub
End Class
=======================================
Sub UpdateSwap(ByVal valueA As String, ByVal ValueBAs String, ByVal ValueC As Integer, ByVal ValueD As Date)
Loading A Css File Dynamically?
Jan 26, 2011I have the following code in my <head>
<% if(Context.User.IsInRole("Reseller")) {%>
<link href="<%: themelocation %>" rel="stylesheet" type="text/css" />
<%} else {%>
<link href="<%= Url.Content("~/Content/custom-theme/jquery-ui-1.8.5.custom.css") %>" rel="stylesheet" type="text/css" />
<%} %>
The issue is with themelocation, which is declared just above this block of code - like so:
<%
var reseller = new Reseller();
var storeSettings = new StoreSettings();
var themelocation = "";
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%>
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http://localhost:50982/%3C%:%20themelocation%20%%3E
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Dynamically Loading HTML
Mar 9, 2012Right now I've got a large .aspx page - starts out loading tons of .css and .js files...
Code:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="AWCOffice.aspx.vb" Inherits="_AWCOffice" EnableViewState="false" %>
<!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">
[Code] ....
Then what follows is a large pile of javascript code - about 5800 lines of javascript code.
Code: <script type="text/javascript">
This is the main application. At the moment I like to keep it in the .aspx page because it's constantly changing and I don't want to worry about client caching and versioning.
After the JAVASCRIPT code comes the html - about 2000 lines of it.
Starts like this
Code:
</script>
</head>
<body>
<form id="form1" onsubmit="return false;" runat="server">
<div id="acs-system" class="acs-ddreflector acs-dddynamic">
<div id="acs-binder" class="noPrint">
[Code] ....
The DIV ACS-SYSTEM is the only visible area of this HTML.
The DIV ACS-POOL has a css style of display:none and holds template HTML that jQuery copies into the ACS-SYSTEM dom space as the app runs.
Here's the actual question.
Most of the 2000 lines of HTML in the ACS-POOL is customer specific - not all of my customers need all 2000 lines of this HTML. And as I add customers the nightmare of managing all this in one "SOURCE FILE" becomes daunting.
Never mind the wasted band width of giving all my customers all this HTML - even parts they do not need.
What kind of options do I have for breaking down and "dynamically" loading this in a more CUSTOMER-SPECIFIC fashion?
I think I could use jQuery to simply feed it from my "boot webservice" call - but if I can do it in a more HTML-fashion I would think that would be better.
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Nov 20, 2010The scenerio is I have a UserControl. This user control will create dynamically ListBoxes if the given List's count > 0. The controls are adding dynamically, there is no problem with adding them, but the event handler is not adding. If I select an item in first listBox, the secondListBox will be added dynamically, and items will add dynamically too. First listBox appears, but the selectedIndexChanged event handler doesn't work. What can be the problem with my code?
EDIT: I tried to add
li.Attributes.Add("onselectedindexchanged","selectedIndexChanged");
or
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but still not firing...
private List<string> myList = new List<string>() { "Serkan", "Kadir" };
private List<string> mySecondList = new List<string>() { "Istanbul", "Ankara" };
protected void Page_Load(object sender, EventArgs e)
{
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Nov 15, 2010I would like to load UserControl dynamically from DLL in the bin directory.
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provide me some sample code which takes either the path of dll or assembly name "ServerControls" to load usercontrol "UserControl1" dynamically into placeholder "PlaceHolder1"
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basically I've got this markup:
<asp:UpdatePanel ID="upPopup" runat="server">
<ContentTemplate>
<UC:Popup runat="server" ID="UC_Popup" />
</ContentTemplate>
</asp:UpdatePanel>
And then this markup inside that usercontrol (Popup):
<div id="modal">
<asp:PlaceHolder ID="phPopupPlaceholder" runat="server"></asp:PlaceHolder>
<asp:Label ID="lblModal" runat="server"></asp:Label>
</div>
In the codebehind of the popup usercontrol I have:
public void Show(UserControl control) {
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this.lblModal.Text = "Loaded";
}
And I call this show method elsewhere with:
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Nothing loads into the placeholder though.
But in the show method I can load regular server-controls fine like this:
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Can anyone explain to me why regular controls are loaded fine, but my usercontrol isn't loaded?
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EDIT
Here's what the code looks like, roughly:
(Client-side HTML)
<table>
<tr>
<td align="center">
<select id="Class1" class="txtboxcomm" name="Class1" runat="server" />
<a href="javascript:classFinder('1')"> Look Up</a>
</td>
</tr>
</table>
<div id="action">
<asp:LinkButton ID="ibtnGetQuote" runat="server" OnClick="ibtnGetQuote_Click" CssClass="getQuote" AccessKey="G">Get Quote</asp:LinkButton>
</div>
(Server-side, in ibtnGetQuote_Click - this is actually a loop since user can append multiple rows; "i" is appended to the word "Class" to find the exact row)
IList<string> classes = this.GetFormValues("Class1");
// This will return null all the time...
private IList<string> GetFormValues(string clientID)
{
String[] values;
values = Request.Form.GetValues(clientID);
if (values == null)
{
Control ctl = FindControl(clientID); // uses built-in FindControl method
values = Request.Form.GetValues(ctl.ClientID);......
The original code was hardcoding the "ctl00$xx$xx" stuff, but the control may or may not be loaded so we cannot guarantee the name the control will get. In fact, I'm not even sure if this will work for all scenarios since only the FIRST control is a server control, the rest are just standard HTML controls so wouldn't have a "ClientID".
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Code:
[code]....
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[Code]....
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