Asp.net - Get Value Of Listitem On Postback
Nov 11, 2010I have two listitems and the postback and run a function.
[Code]....
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Add HTML To A ListItem In ASP?
Jul 8, 2010If I use this code on my aspx page:
<asp:BulletedList ID="listClientContacts" runat="server">
<asp:ListItem><b>My Name</b></asp:ListItem>
</asp:BulletedList>
The text renders as literal <b>My Name</b> instead of making the text bold. The same thing happens if I try to add a list item from the VB side of things:
Dim li As ListItem = New ListItem("<b>My Name</b>")
Me.listClientContacts.Items.Add(li)
Is there a way to add HTML to a ListItem in ASP, or is there a better way to dynamically generate a list?
Listitem Displaying Outside The Box?
Apr 16, 2009I am trying to do the following but the values are appearing outside the box rather than dropdowns:
HTML Code:
<TD style="WIDTH: 110px"><span style="FONT-SIZE: 8pt; FONT-FAMILY: Arial">Center</span></TD>
[Code].....
.net - Moving A Listitem To The Top Of A Listbox?
Mar 2, 2010When the user selects a name in the listbox and clicks a button I save the name in a var called "parent".What I want to do is programmatically move the selected name to the top of the list and take that whole list and drop it in a dropdown. I started the code below but don't know how to move the selected list item (parent) to the top of the list??
Private Sub GoLower(ByVal parent As String,
ByVal lst As ListBox,
ByVal ddl As DropDownList)
[code]....
DatePicker As TextString In ListItem?
Nov 6, 2010I would like to add to my RadioButtonList a ListItem displaying a DatePicker on select. How do I go about adding this in code please, I mean the DatePicker? The code below is my attempt at this but does not work
Dim datepick As New DatePicker
With datepick
.ID = "RadDatePicker1"
.MinDate = New DateTime(CLng("2006-01-01"))
.SharedCalendarID = "sharedCalendar"
.Width = New Unit(100)
End With
RBtnList.Items.Add(New ListItem(datepick, "Other"))
Populate The Value Part Of The Listitem?
Feb 27, 2010i have a dropdownlist that populates from the sql server database. populating the list is not a problem, but does anyone know how to populate the value part of the listitem.
<asp:dropdownlist id="colors">
<listitem value="1">black</listitem>
<listitem value="2">blue</listitem>
[Code]....
how do you populate the value=1,2,3,4,5 when you're populating from table in database?
Asp.net - Keep Selected ListItem From Ignoring Other ListItems?
Aug 16, 2011When I run code the below, the If statement never resolves to 'True'. It always shows 'Assm' as the SelectedItem, even if I check all the checkboxes. So how do I allow 'Assm' to be checked by default AND have the code-behind see that the other checkboxes are checked?
<asp:CheckBoxList ID="qualityChecks" runat="server" RepeatDirection="Horizontal" TabIndex="8">
<asp:ListItem Text="Assm" Selected="True"></asp:ListItem>
<asp:ListItem Text="Qual"></asp:ListItem>
[code]....
Error In Insert ListItem In 2005
Mar 15, 2009I want to add new Item to dropdown list in vb 2005 , but there is error [code]...
View 2 RepliesMultiple Remove Listitem In Listbox?
Jan 26, 2010I am confused with the removing multiple selection from listbox ...been searching over internet .. but still I do not get the right approach or simply say it doesn't work. I tried to loop through the list without removing any of the item from listbox. I printed the item.selected and it showed that only the first one I selected printed true, others were not ...
View 13 Replies.net - Object Reference Not Set To An Instance - Trying To Get DataRowView From A ListItem?
Dec 9, 2011I am trying to get the bound values from a row in a ListItem. I have a button on each row that when clicked will perform a task (sending an email message to the person who's name and email address is in that listitem row. So, I have an event handler tied to the listview, and I am trying to get to the underlying datarowview to extract the data items.Here's what I have in the event handler:
Protected Sub lvUsers_ItemCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ListViewCommandEventArgs) Handles lvUsers.ItemCommand
Dim diCurrentUser As ListViewDataItem = CType(e.Item, ListViewDataItem)[code]...
Now, it fails at the line where I am trying to access the contact_email element in the DataRowView object.What an I doing wrong?
Asp.net - Click The Language Twice From The Asp:listitem Box To Change Culture?
Feb 6, 2012I have a drop-down asp:listitem box that looks perfectly clean to me. It functions like when the first time you change a language on that page (Say, English to Swedish), it does change the text to that language.
The second time you try to change the language (Swedish back to English -- or any lang), it just reloads the page and then you have to select English a second time to actually change the page back to English.
I tried removing lines from the code behind, one at a time, but nothing changed it.
My .aspx page is like this:
<asp:DropDownList ID="ddlCulture" DataTextField="DisplayName"
DataValueField="Name" runat="server" BackColor="#DDE4EC" ForeColor="#465C71"
Width="130px" AutoPostBack="True">
[Code]....
VS 2005 Multiple Lines In A Listbox Listitem?
Jun 10, 2009I am trying to create a single listitem that has multiple lines. When I create a newline using "System.Environment.NewLine" I get an empty box rather than the text going down the next line.
How can I get this to work? Currently my listitem is a custom structure. Do I need to change anything here so I can have multiple lines? Perhaps its a limitation of the listbox?
Public Structure ListItem
Private displayText As String
Private itemValue As Integer
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Asp.net - DropDownList Throws An Error When A ListItem Is Not Present Anymore?
Mar 3, 2012The application that I am working on is a Service Desk App. I have a form there that uses a DropDownList that contains employees names coming from the Active Directory. Any employee can make a request and save it. Problem arises when an employee leaves the company and consequently his account is deleted from the Active Directory. When some other employee searches the DB to finds a relevant Service Ticket that could be of his use, when tries to open it an error is thrown that indicates that the name does not exist in the DropDownList items.
UPDATE:I am adding some code so that it can be more clear.
<asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1"
DataKeyNames="ITRequestId">
<EditItemTemplate>
[code]....
Asp.net - Maintain Added Attributes On A ListItem While Posting Back?
Nov 16, 2011I am generating ListItems for a CheckBoxList control in ASP, but when I do something like the following:
...
Dim newListItem As ListItem = New ListItem("RoleName")
newListItem.Attributes.Add("style", "color:blue;")
CheckBoxListControlToFill.Items.Add(newListItem)
...
"RoleName" is maintained from post back to post back, but my style tag is dropped after the first post back. If I want to keep any attribute like this, do I need to re-add it every post back?
Call Error Message : "Too Many Arguments For ListItem.ToStringDelegate"?
Apr 9, 2012I must be missing something obvious here:
Private Class ListItem
Public Delegate Function ToStringDelegate() As Func(Of Encoding, String)
Public ReadOnly Encoding As Encoding[code]....
The error message is: "Too many arguments for ListItem.ToStringDelegate". I don't get it; it expects one argument of type Encoding and returns a String.
Convert From Type 'ListItem' To Type 'String'?
Aug 28, 2009In a VS 2008 ASP.net 3.5 aspx.vb file, Response.Write(DDL.SelectedItem) worked very well.But "Dim filenameDDL As String = DDL.SelectedItem.Text" did not. Then I tried the following codes and found the problem -- Conversion from type 'ListItem' to type 'String' is not valid.
[Code]...
Selected ListItem In Datasource Not Selected After DataBinding
Aug 18, 2009I'm selecting a ListItem as I add it to a ListItemCollection. Then I use that ListItemCollection as a datasource for a DropDownlist but the Selected List Item is not being selected after databind.[code]...
View 3 RepliesSelected ListItem In Datasource Not Selected After DataBinding?
Jul 6, 2007I'm selecting a ListItem as I add it to a ListItemCollection. Then I use that ListItemCollection as a datasource for a DropDownlist but the Selected List Item is not being selected after databind. Here is an example of the code:
[code]...
I'm trying to get this to work so I can return only a list of items, instead of a list of items and the selected value. Is there a way to make the DropDownList select the selected ListItem from the ListItemCollection (or any other type of collection)?
.net - ASP.NET Keep Fileupload After Postback?
Jul 13, 2010I'm writing an intranet ASP.NET page using VB.NET. I've run into a particularly nasty problem dealing with handling file uploads. I'll do my best to explain the problem, and perhaps someone can help.
My problem is almost a duplicate of this one, or this one, except (other than the filename) I don't care about sending the file to the server until the other data has been reviewed. here's the situation:
Joe Q. Dataentry inputs some data into several fields. The first 3 are drop down, and when he changes the selection, a postback event is fired that queries a database for valid entries for the other drop down selections. After selecting the values, he inputs some other data, chooses a file to accompany the data and clicks the "Update" button. When he hits the button, it fires a postback event that sends the current data to the server to be validated. The data will create a change in the database, so he is presented with a view of the current state, and what it will look like when his changes are made. He can now either confirm or cancel the operation for whatever reason.
Part of the data he will see involves the extension of the file which may be a PDF, or could also be some image file or other document.
Now here's where my problem is - on each postback event, the fileupload dialog is cleared. I was getting around it by creating a temporary file on the first postback and then renaming if he clicks OK or deleting on Cancel... but I need to do a variety of things, based on the previous state of data and the filename. I've tried to keep some session variables to retain the filename, and that works OK for just renaming the file, but for what I need to do it gets unwieldy.
What I want to do is be able to have the postback event to present the changes, and then when the user clicks "OK", submit the file. Is there any possible way to do that?
One of my thoughts was to do some of the validation client-side (I'm already re-validating server side so I'm not too worried about data security there), but I don't know how I could get the information from the database query. It appears that what I want to do is prevent a certain button from firing a full postback. Is there any way to do that?I have an update panel on the page already - is there any way for the button to only post what's in the update panel?
ASP.Net Menu On Postback?
Feb 22, 2012I have the Menu Control in Visual Studio 2010 is set up horizontal in my Master page but on same pages when the page loads and on postback with datasources that take a few seconds to return data the menu spreads vertically down the page. How can I fix this problem?
View 1 RepliesForce An ASP Page To Postback?
Feb 18, 2009I've got a handful of dynamic controls populating an ASP page, with VB.NET in the back-end.What I need is when the user changes the .TEXT value of a textbox and the page posts back, the .TEXT value of a Table Cell changes to reflect that change (it multiplies the value of the textbox by the value of another cell).But a Table Cell can't be set to AutoPostBack, and I can't for the life of me figure out how to programmatically refresh the page (force a postback) in the TextChanged event for the textbox.
View 1 Replies.net - Usercontrol And Page Postback?
Aug 8, 2011I have a page with three radio buttons and a calendar usercontrol. The radio buttons have autopostback and depending on which one you click it should change the calendar availabilities based on the selected index.The problem is that the page load of the calendar is executing first before the selected index change (where I am setting the needed id).
View 1 RepliesAsp.net - View State After Postback VB?
Apr 12, 2011I have a label's value that is posted back from a previous page and I want to use this label to do a simple calculation in the current page, but when I do the calculation the page (refreshed) the value of this label and automatically deleted the value (Since there would be no value in postback when it refreshed).
Here is the code behind file:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Label2.Text = Request.Form("Hidden1")
End Sub
and here where I want to use the label
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Stotal As String
Stotal = Val(Label2.Text) * 10
Label3.Text = Stotal
End Sub
How can I save the value in the page via view state or any other method?
Asp.net String Not Retained On Postback?
Nov 9, 2010A user logs in by inserting their user id and password.If they don't have an email address assigned to their login details they are asked to submit one before they can continue.They then continue to the home page in a logged in state.The trouble I'm having is that the user id and password are not retained when they submit their email address so the login fails.
Here's the code...
Dim userid as String
Dim password as String
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
[code]....
Do Postback Dynamically In Program?
Jun 4, 2012Is it possible to do postback dynamically in vb.net or c#.net?
THere is a asp button (let say buttonA) if i click buttonA it has to do some actions and then trigger postback
postback should not be triggered onclicking a button . only after performing some actions it has to trigger postback
Dynamic UserControls On PostBack Asp.Net?
Sep 12, 2011I created an item user_control that has a textbox, button, etc. which will intentionally collect the total quantity of items the user wants.
I dynamically create a few intances of user_control on page_load. If you click the add button for the item quantity it will add to a session variable. however when the user enters a different quantity in the textbox and clicks the add button the total is of the original value of the textbox.
How to get the value the the user has typed in to the textbox to add to total???
I've create a stripped down example below: [UserControl] [Page] [CodeBehind]
UserControl...
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="BomItem.ascx.vb" Inherits="DynamicUserControl.BomItem" %>
<style type="text/css">
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How To Make DropdownList No Postback
Sep 12, 2011How can I make dropdownlist no postback - I have a dropdownlist which I put a code in selected indexchanged - basically for every indexchanged the code will connect to sql and get values then populate textboxes with values.
Here is my code
<asp:DropDownList ID="ddlSalesOrg" runat="server" Style="width: 200px;"
AutoPostBack="true" />
Obviously when I remove the autopostback="true" - then indexchanged will not function as expected.
Javascript - Keep Div Visible On Postback?
Feb 22, 2011I have a div which needs to be hidden when the page first loads. If the user then clicks the "btnShowDiv" button, it should then become visible.The problem I have is that, once it has become visible I need it to stay visible. At the moment, whenever I click on an asp button the div reloads and becomes hidden again.
<DIV id="myDiv" style="display:none;">
<label>some text</label>
</DIV>[code].....
Keep The Values Of Checkboxes After Postback?
Feb 29, 2012I have a checkbox in datalist, after the button is clicked(postback) the value of checkbox is cleared. For example, if the checkbox in datalist is checked, when the button is clicked the checkbox appears unchecked when getting it's value
View 2 RepliesPopulating Data On Postback?
Jun 8, 2012I would like to know if i had two columns from a database called SellerID and Product letter in a table called product, and on a new form i want to be able to combine the columns i.e if the user enters the sellerId and product ID e.g 1A in a SellerProductID in a new table on a new for i want the program to do a postback and have the Description Field be populated with the data from the Products ID Therefore the SellerID + Product letter = SellerProductID and it should select the description in the description field.
View 2 Replies