Javascript - Scroll To First Selected Item In ListBox
Nov 17, 2010
is there an easy way to scroll an ASP.Net ListBox automatically to the first selected Item? The ListBox has SelectioMode="Multiple".
<asp:ListBox ID="LbSymptomCodesEdit" CausesValidation="true" ValidationGroup="VG_SAVE" Height="100%" Width="100%" runat="server" SelectionMode="Multiple"></asp:ListBox>
The ListBox is in the EditItemTemplate of a FormView inside of an UpdatePanel. jQuery is possible but it would be great if there would be an asp.net serverside(or Ajax) way to achieve this because i don't want to use more client scripts than really needed(and this is only a nice to have).
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Similar Messages:
Sep 9, 2010
I have a textbox that searches the listbox below it and selects the text that I types in the textbox. Now although the item is selected in the listbox I have to scroll to the end to see if the item is selected ornot
IS there a way that I can make the list box scroll to the selected item?
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Feb 1, 2010
I have a multiple select Listbox.When I click on it then it post backs and scroll back to the top of the Listbox. Is there any property to prevent it?
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Mar 16, 2010
I am developing an ASP.NET web application that incorporates google maps. I have an ASP.NET listbox on my page which contains a list of items. When the user selects one of the items, I'd like to show this item on the map. The main complication lies in the fact that google maps uses javascript to control it and the listbox is a server control.
I can think of two ways to do this. The first would involve the listbox calling a javascript function when the user selects a new item. I can then write this function to perform the necessary map operations. Unfortunately, the OnSelectedIndexChanged property of the listbox doesn't seem to support javascript functions.
The second involves wrapping an UpdatePanel around the listbox and getting the listbox to perform a postback. In the SelectedIndexChanged event in VB/C#, I would the need to somehow make a call to a javascript function which would then update the map.
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Feb 28, 2011
How to get the selected item from the listbox in the selected index changed event. I tried: Label1.Text = ListBox1.SelectedItem.Text; It is giving me object set to null reference.
foreach (ListItem item in ListBox1.Items)
{
if (item.Selected)
{
//lblResults.Text += item.Text + "
";
Label1.Text = item.Text;
}
}
No use, no value coming in to label.
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Jan 20, 2011
I have a custom C# created listbox. This listbox is a multiple select listbox. Unfortunately, the client I am working with wants it to populate with customer data. This returns well over 20k options. I am getting this from SQL. So the list is dynamic, depending on the customers in the table in SQL. The list is ordered alphabetically by the customers last name. So Jim A would be first and Tony Z would be last.
The problem I am having is that the list is so large, and needs to stay at around 100px in height, it is damn near impossible to navigate (think watching an hour long youtube video, clicking a millimeter and skipping like 10 minutes of time). Sorting through the entire list would take a little longer, but, I can always add a loading jquery pop up for the second or two it would take. I already added a row of A-Z links to the bottom out of the listbox control.
Inside my if is where the magic needs to happen. Anybody know of a way to scroll to that value? I cannot imagine it would be this difficult. I tried selecting that value, then item.scrollIntoView() then deselecting that value. I do not want to select the first value, but rather just scroll to it. (think like an ipod touch songs list). Is there anyway to find the scroll bar position of the particular item then scroll to it?
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Mar 23, 2011
if any body select listbox then
item=item1
if nobody select list box
item=no
how to do it
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Aug 3, 2010
regarding this scenario..
I have a listbox, i am binding it to a datatable with DataTextField and DataValueField. This is in WebForm (not windows).And the first item in ListBox is "Select All" and the rest are from DataTable.SelectAll is selected by default.1) If i select any other item...(as it is multiselect) the "select all" item should be unselected.2) If i select 5 items in ListBox and after that i select "Select All" items then all the other items except "Select All" item should be unselected.
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Jul 21, 2010
how can i check with jquery that an item is selected or not in listbox?
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Mar 11, 2011
In ASP.NET I have a dropdown with some items in it, I have a button and a textbox. I am subscribed to the SelectedIndexChanged event of the dropdown where I pass the new selected index of the dropdown to a struct that converts it's index (via enum) to a string. That string is then gotten through a property in a class to put into the textbox.
[Code]....
Now the problem I have is that, when you click it (the button) the first time, the action get's updated with the current action selected in the listbox, but then when you click the button again WITHOUT changing anything in the listbox, the textbox shows the zero'th item in the textbox, (seems to reset), although it actually hasn't changed at all.
I'm guessing this might have something to do with the postback caused by the button click, which resets the state of the global or something, but I'm not sure. Why is it being reset while the dropdown box is still as I set it the first time?
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Nov 4, 2010
I have built one of those 2 listbox things where the items in the left textbox can be selected and moved to the right list box. The items in the list can be thought of as tasks (like Raise Invoice, Call Client, Deliver goods etc) The rules of this are that the item you move to the right box remains in the left box. Reason being, you are allowed to add the same item from the left to right as many times as you like. An example what the list on the right might look like is this.
Raise Invoice
Call Client
Deliver Goods
Installation
Call Client
Finalize Deal
Now I have added the feature to select an item on the right and hit the UP button, to move it up in the list. For example I could select 'Deliver Goods' and hit the up button. (the down button works as expected)
Raise Invoice
Deliver Goods
Call Client
Installation
Call Client
Finalize Deal
If i select the 2nd instance of Call Client and hit the up button,
Raise Invoice
Call Client
Deliver Goods
Installation
Call Client
Finalize Deal
This is what happens.
Raise Invoice
Call Client
Deliver Goods
Installation
Call Client
Finalize Deal
My code that loops though and does the move relies on the item.selected property to find which on I have selected. (obviously)
[Code]....
Despite having the items at the bottom of the list selected, the .Selected property is true on the first instance of the item that happens to have the same .Text and .Value.
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Oct 13, 2010
I have a asp.net web form in which I display registered customers in a listbox. In the listbox I can choose one customer, and click a "Show data"-button. That should display all registered data about the chosen customer in textboxes next to the listbox. This doesn't work and I haven't been able to find where the error lies. Instead of displaiyng the data in the textboxes the error message in: LabelNoCustomerChosen is displayed. Could it be that the program doesn't find the customer ID? The string that is displayed in the listbox looks like this: ID Lastname, Firstname
[Code]....
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Mar 10, 2011
I want to change the selected listbox item back color. How can I achive this. I tried using ..
protected void lstbxApplications_SelectedIndexChanged(object sender, EventArgse)
{
try
{
lstbxApplications.SelectedItem.Attributes.Add(
"style",
"background-color:Green;
color: Red;"
);
}
catch
(Exception
)
{
throw
;
}
}
But this seems not working.
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Nov 7, 2010
I want to cast back my ListBox Item into my Business Object. Following is the code. ListBox Populate Code on Page Load...
if (!Page.IsPostBack)
{
SalesDBEntities ctx = new SalesDBEntities();
this.ListBox1.DataSource = ctx.SalesHistories;
this.ListBox1.DataTextField = "Product";
this.ListBox1.DataValueField = "SaleID";
this.ListBox1.DataBind();
}
And here is
protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
SalesHistory sh = new SalesHistory();
//sh = (SalesHistory)ListBox1.SelectedValue; Error Here. How it is possible
TextBox1.Text = ListBox1.SelectedValue.ToString();
}
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Jan 18, 2011
Referring to a C#, .net, System.Web.UI.WebControls.Lisbox which has a multiple select option true and needs to do a postback every time selected index changes.
Problem is, the [SelectedIndex / SelectedItem / SelectedValue] is always on the value of the 1st selected item. Clicking on the second item, third item, does not change the SelectedIndex, causing the listbox to reload and scroll to the highest selected item position.
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Mar 26, 2014
Ok so I have two listboxes on my page one for users and another for cases. For some reason the users listbox preserves state, but the cases listbox doesn't.
They're both set EnableViewState= true
Code:
<asp:ListBox ID="ExistingUsers" runat="server" Width="45%" Height="189px"
CssClass="createdusers" ></asp:ListBox>
<asp:ListBox ID="ExistingCases" runat="server" Width="45%" Height="190px"
></asp:ListBox>
I tried setting them both to autopostback, but that didn't work. The users listbox would preserve the selected item, but make it the first viewable item in the list. The cases listbox still reset the selected item to the first.
My page load:
Code:
'....
If Not Page.IsPostBack Then
''Sort later.
Dim i As Integer = 10
For Each usr As String In AttRoleProvider.GetUsersInRole("Role1")
Me.ExistingUsers.Items.Add(usr)
[Code]......
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May 7, 2015
i want to display value in textbox when a value is selected in listbox in webapplication vb.net.
Dim con As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:UsersUserDocumentsDatabase4.accdb")
Dim cmd As New OleDbCommand()
cmd.Connection = con
con.Open()
cmd.CommandText = "Select ID,product from List"
' cmd.CommandText = CommandType.Text
Dim da As New OleDbDataAdapter(cmd)
[code]...
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May 7, 2015
In Listbox after select one item in first and how to unselect or remove focus on that listbox.
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Sep 24, 2010
I have a listbox which populated from using a datatable. I have a Add button in my page. On clicking the add button I want to insert a blank row in the listbox. This can be done easily by
ListBox_Admin.Items.Add("");
after this is done I want to select this item as in setfocus on this item.How do I do this.
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Nov 2, 2010
I have a BulletedList in ASP.NET
<asp:BulletedList ID="lstItems" OnClick="Item_OnClick" DisplayMode="LinkButton" runat="server" />
On the server I handle the list item's link button click event.
When this occurs I want to apply a CSS class to the selected item on the client-side to show that it is the selected item.
Since ListItem does not support any sort of CSS properties directly, but does support Selected, I assume the best way to do this would be to get the selected item from control on the page load and apply the styling then.
Does anyone know how to access this property in JavaScript or any other options to achieve this affect?
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Dec 6, 2010
I simply am trying to add a color to the select item background within the select elm after a user makes a selection from the select elm. The result right now is that in firefox, the colors will change, but only during selection ... after the selection has been made the background for the individual selection is still white.
This code works fine in IE but so far my efforts have been thuarted in FireFox.
[code]....
P.s I made an equivalent javascript method and made some attempts at it, but the result is still the same. The background color of the item is changed ... but only is visible when making a selection, NOT after the selection is made.
.Compliant { background-color : #8AC9FF; }
.OtherThanSerious { background-color: #C2FF87; }
.Serious { background-color: #FFBC43; }
.Critical { background-color: #FF6743; }
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Mar 4, 2010
I have two list boxes, one has a list of available users (about 1500 items) and the other is blank. There is a button to add the seleted items from the first list box to the second one. Both of these listboxes are within an update panel and for some reason it takes over 20 seconds for the items to show up in the second listbox.
Is this normal? Is there an alternate, faster way of doing this?
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Jul 14, 2010
I have a an asp.net label control on my page.I have set the style to overflow: auto.
What i would like to know, is when there is a lot of text in my label and the vertical scroll bar is showing, is there away i can scroll to the end of the label using javascript?I would like the user to always see the bottom section of the label.
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Nov 19, 2010
My requirement is, i have a checkedlistbox, and i want the selected item should be inserted into the gridview using javascript, in grid i want only two columns i.e. selected item text and another is checkbox.
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Sep 17, 2010
I got a problem in horzontal scrollbar in listbox. For Asp.Net, i put the div and inside placed the scroll bar. I got the horizontal scroll bar. But in list box if it is large data, it is scrolled a list box, not scrolled list box inside data. I put the code here.
[Code]....
[Code]....
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