Web Forms :: How To Get Listbox Selected Item
Mar 23, 2011if any body select listbox then
item=item1
if nobody select list box
item=no
how to do it
Similar Messages:
Forms Data Controls :: Get The Selected Item From The Listbox In The Selected Index Changed Event
Feb 28, 2011How 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.
Web Forms :: Listbox Multiselect Last Selected Item?
Aug 3, 2010regarding 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.
Web Forms :: Listbox.Selected - Duplicate Item Error
Nov 4, 2010I 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.
Web Forms :: Displaying Data From Selected Item In Listbox
Oct 13, 2010I 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]....
Web Forms :: How To Change The Selected Listbox Item Back Color
Mar 10, 2011I 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.
Web Forms :: ListBox Selected Item Costing To Business Object
Nov 7, 2010I 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();
}
Web Forms :: Display Selected Item Of ListBox In Label Or TextBox
May 7, 2015i 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]...
Make The Listbox Scroll To The Selected Item?
Sep 9, 2010I 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?
Check With Jquery That An Item Is Selected Or Not In Listbox?
Jul 21, 2010how can i check with jquery that an item is selected or not in listbox?
View 2 RepliesJavascript - Scroll To First Selected Item In ListBox
Nov 17, 2010is 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).
Update Textbox Through Selected Item In Listbox?
Mar 11, 2011In 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?
Set Scroll Bar To Selected Item In Multiple Select Listbox
Feb 1, 2010I 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?
View 1 RepliesUsing Javascript To Detect When User Has Selected Item In Listbox?
Mar 16, 2010I 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.
C# - Changing The SelectedIndex Of Multiple Select Listbox To The Last Selected Item?
Jan 18, 2011Referring 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.
Listbox Control Not Preserving Selected Item On Button Click
Mar 26, 2014Ok 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]......
Data Controls :: Remove Focus From ListBox When Item Is Selected
May 7, 2015In Listbox after select one item in first and how to unselect or remove focus on that listbox.
View 1 RepliesHow To Insert A New Item In A Listbox And Then Setfocus On The Listbox New Item On A Button Click Event In C#
Sep 24, 2010I 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.
Web Forms :: Adding Item To Listbox From Another Listbox Taking Way Too Long?
Mar 4, 2010I 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?
Web Forms :: C# Getting Listbox Selected Item Without Using System.Windows.Forms As Need To Use System.Web
Feb 4, 2011im tryign to move a listbox item from one listbox to another heres my c# for moving from populated listbox to unpopulated
[Code]....
when i run the addtable function on one of my buttons it doesnt work, so i tried just outputing to a label the value of the slected item, didnt work
i opened google chrome console to find the below which led me to belive i need to add System.Windows.Forms; to get it working?
ScriptResource.axd?d=eapqzlwXhBFph23Pl_2pOrzTVt5-WN-w1AJhJtJAxUGjg5h6xiIW5VowmUQ2aKwAieU-I4882cg5dWnZWQpkyvximpbl-emU1vXDRe137NMq7e8sEJ6W-wJLYpPH8ryr7g79lqLpeL1CaNGbVvthubXLUxDQz86JoZP_jf82s1h2aflGevqjjph2odUMt3SI0&t=2610f696:868Uncaught
Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException:
Object reference not set to an instance of an object.
Web Forms :: Compare Two ListBox Selected Items And Save The Common Selected To Database
May 7, 2015Two ListBox Items Compare and Distinct Values Insert Into Third ListBox
View 1 RepliesGetting Data From ListBox / Read The Selected Field From The Listbox?
Mar 14, 2011how I can read the selected field from the listbox?I have MSAccess table attached to the app.I can get to the properties, but I don't know which property gets me the data of the specific field.In VB it would be "listbox1.Column(x)", where 'x' represents the column number in the listbox1.I am using Microsoft Visual Web Developer 2010 Express
View 2 RepliesWeb Forms :: Selected Items In Listbox To Be Seen As Selected
May 17, 2010I'm having trouble getting selected items in a listbox to be seen as selected. On my aspx page there's a listbox and a button:
[Code]....
But if I change my condition to Not selected, the string does build, with every item in the list. So the Sub is reached, the items and their text and values are seen, but user selection of items doesn't work. What am I missing?
Web Forms :: Redirecting A User Selected Item In A Drop Down List To Another Item?
Feb 10, 2010I have a list with 2 sorts of items. Items that have actual values (1,2,3,4 etc) and items that are like group headings so all their values are set to 0. If someone decides to select a group heading - which has a value of 0, is it possible to redirect them to my 'Select an item' item which has a value of ""?
If worse comes to worse, I can just reconstruct the entire list, although if possible I'd like to avoid it.
Web Forms :: DropDownList Selected Item Is Lost And Default Item Is Inserted In Database On Button Click
Jul 16, 2012I bind dropdownlist in my page
protected void Page_Load(object sender, EventArgs e) {
BindDropDownList(DDL1, "city1", "name", "ID");
DDL1.Items.Insert(0, new ListItem("select city", "0"));
}
And SP
LTER procedure [dbo].[city1]
as
begin
select id,Name
from city
end
And design code
<asp:DropDownList ID="DDL2" runat="server" CssClass="daddsd">
</asp:DropDownList>
And here is imagebutton code that when click on it update data into table
protected void ImageButton_Click1(object sender, ImageClickEventArgs e) {
string data = Server.UrlDecode(Request.QueryString["BehCode2"]);
SqlCommand _cmd = new SqlCommand("insertinfo", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
_cn.Open();
[Code] ....
Here when i click on button it insert all data into table but it didn't insert my selected item from dropdownlist it insert select city that i define in page_load
DDL1.Items.Insert(0, new ListItem("select city", "0"));
And when i delete this code from page load it insert in table first row of my table it didn't insert my selected item from dropdown list.