Web Forms :: How To Set The Value Of Each Listbox Item
May 25, 2010
I've been searching the web and no luck. Can someone tell me how to assign values to my listbbox? I used the ValueMember property but when i have more than 1 item it is only set to one value member instead of each of its own.
[Code]....
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Similar Messages:
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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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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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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Feb 8, 2010
I have up and down arrows next to a listbox and i need to switch the actual index of the item.
It is very similar to this thread: [URL]
But what actually I want is, if the listbox is like
item1
item2 (selected)
item3
So after clicking on down button it should display the listbox in following way
item1
item3
item2(selected)
The selected item should move downwards.
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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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Feb 18, 2011
How can I pre-select a drop down list box item in a listbox? I experimented using Asp.net and C#, but was not able to pre-select a drop down listbox item.
I am not on my coding box right now, but basically as an example of what I am talking about, if I have the following drop down listbox items.
--Select--
New York Jets
New England Patriots
Green Bay Packers
Atlanta Falcons
SF 49'ers
Oakland Raiders
How would I pre select the team name of "Atlanta Falcons" using C# and Asp.net? Spefically based on the string of the team name "Atlanta Falcons" instead of an alternate way like using the Selected Index function?
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Jan 4, 2011
How can I update the database with more than one item selected from the List Box. What I am currently doing updates only one item
objprp1.plugin_id = Convert.ToInt32(ListBox1.SelectedItem.Value);//passing the value(id) of the plugin thru the listbox property
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Jan 18, 2010
I am having 2 list box in my form. I am adding some values from 1st list box to 2nd one. What i need is i would like to save the data in the list box in sql table.
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Aug 31, 2010
I have two dropdown lists ddlstate and ddldistricts onchange of ddlstates I am displaying the districts. Here my requirement is to make the default seleted district as "Warangal" i.e I need to highlight this list item
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Nov 7, 2010
I am trying to find the most efficient way to prefix listbox item text with their current index.I have two listboxes on a page, the first holds a list of states, the second holds the selection of states. When the user selects a state into the destination listbox, the state should be prefixed with the current index position. The destination box is sorted, and also has buttons to change the item positionsIs there a way to get the index of the item after insertion, instead of looping through the entire collection to add the index?
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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 24, 2011
how to stop showing drop item of dropdownlist or listbox
I need next item of dropdownlist or listbox after pressing down arrow without showing all drop items.
and It must be typable within dropdownbox or listbox
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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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Jul 26, 2010
I have this code which takes a value from a dropdown control as a parameter.
[Code]....
I'm now changing to a list control so that multiple items can be selected. So far I have some code that places the items selected into a string that looks like this:
'item1','item2','item4'
For the above example I would need all the the records returned when the field action_ref contains either item1 or item2 or item3.
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Mar 23, 2010
I am having 3 ListBoxs(LB1,LB2,LB3).In LB1 I am binding the names of Courses through database.The code is shon below...
da1 = new SqlDataAdapter("SELECT COURSE_ID,COURSE_NAME FROM Course_Mst", con);
DataTable dt1 = new DataTable();
da1.Fill(dt1);
lstCourse.DataSource = dt1;
lstCourse.DataValueField = "COURSE_ID";
lstCourse.DataTextField = "COURSE_NAME";
lstCourse.DataBind();
Whenever I select particular course in LB1 all the content related to that course will be binded in LB2.The code is shown below.....
protected void LB1_SelectedIndexChanged(object sender, EventArgs e)
{
da2 = new SqlDataAdapter("SELECT SPEC_ID,SPEC_NAME FROM SPEC_TRANS WHERE COURSE_ID="+Convert.ToInt32(lstCourse.SelectedValue)+"", con);
DataTable dt = new DataTable();
da2.Fill(dt);
lstSpecilization.DataSource = dt;
lstSpecilization.DataValueField = "SPEC_ID";
lstSpecilization.DataTextField = "SPEC_NAME";
lstSpecilization.DataBind();
lstSpecilization.Focus();
}
I am having a ADD button.In LB2 I can select multiple items.When I select multiple items in LB2 and click on ADD all the selected items will be binded into LB3.The code is shown below...
protected void btnAddCourseDetaisl_Click(object sender, EventArgs e)
{
for (int intLoopIndex = 0; intLoopIndex <lstSpecilization.Items.Count ; intLoopIndex++)
{
if (lstSpecilization.Items[intLoopIndex].Selected)
{
ListItem li = new ListItem(lstSpecilization.Items[intLoopIndex].Text, lstSpecilization.Items[intLoopIndex].Value);
LB3.Items.Add(li);
}
}
}
My problem is when I select a item from LB2 and click on ADD the selecteditem is added to LB3 but if I select the same item and click on ADD the items are again added to the LB3.I want to prevent this.Pls respond me ASAP.
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Feb 26, 2011
In my MVC 2 application i ahve a list box
<%: Html.ListBoxFor(m => m.SelectedQuestionIds[cnt1], Model.QuestionList, new { @class = "list_style" })%>
i have limited my list box width with the style "list_style". my problem is that some of the item in my listbox has length greater than my listbox width. i need to limit the length of the item shown with a '...' if the length is too long. so my text will be 'how are you ...' for '
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Dec 13, 2010
I have the following deserialize method:
[Code]....
Which works properly (this code is located in a class withing App_data).
Next i want to retrieve all the names and display them in a listbox.
But how exactly do i retrieve the names? <Enquete Name =""> and list all of those in my listbox control? (through the asp.cs file)
My xml structure looks like this:
<enqueteSystem xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<Enquete Name="test">
<Questions>
<Question QuestionText="testtest" QuestionType="na"></Question>
</Questions>
</Enquete>
</enqueteSystem>
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Jul 26, 2010
How can i add anything user selected from dropdownlist to listbox using JQuery? and when i post the page i should be able to retrieve "id, name" from the listbox.
<asp:DropDownList ID="ddlPerson" DataSourceID="ods_person"
DataValueField="Id" DataTextField="Name" runat="server" Width="221px" /><br />
<asp:ListBox ID="lstPerson" runat="server" Width="245px"
Font-Bold="true" ForeColor="Green" SelectionMode="Multiple">
</asp:ListBox> <br>
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Jan 9, 2011
There are quite a few questions around this topic,but I can't seem to get it figured out.I'm trying to bind a listbox to an ObservableCollection and keep the listbox updated when items are added to the collection.
[code]...
Beyond this, I have a simple textbox and button on a page.When a name is entered into the textbox,and the button is clickedI call the addBlog(passing in name from textbox) sub routine in the ITRSBlogs Class (back up the page a bit) to add the item to the collection.Problem is,when I add an item to the collection,the listbox is not updated.I'm new to Observable Collections (and many other things : ),so maybe I'm just really off here.
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Jan 7, 2011
how can i change the text of last moved item from one listbox to another
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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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