Web Forms :: How To Populate A Listbox Programmatically From 1 Of 2 Tables

Nov 8, 2010

I need to populate a listbox programmatically from 1 of 2 tables, depending upon user inputs at run time and I need to know how many rows to read. Otherwise, I get an exception error when I try to read data that does not exist after all rows have been read.

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Web Forms :: Populate Listbox From Dropdownlist Selection?

Jan 3, 2011

1) 1 dropdownlist - department

2)Search button

3) 1 listbox that will display all the staff according to the selection of its department

So when i select the department and click search button, the listbox will be populated with the staff names.

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Web Forms :: Trying To Populate The Value (s) Of A Listbox That Has Multiple Selections?

Jan 20, 2010

I am trying to populate the value(s) of a listbox that has multiple selections:

Assignment Preference:<br />

<asp:ListBox ID="assignmentPreferenceList" SelectionMode="Multiple" runat="server">

<asp:ListItem Value="">None</asp:ListItem>

<asp:ListItem Value="CONTRACTING">CONTRACTING</asp:ListItem>

<asp:ListItem Value="DIRECT HIRE">DIRECT HIRE</asp:ListItem>



I am using a datareader in code behind to "loop" through the values:

string sql4 = "Select * from assignmentPref where tID=" + (dr["id"].ToString());

SqlCommand comm4 = new SqlCommand(sql4, con3);

SqlDataReader dr4 = comm4.ExecuteReader();

while (dr4.Read())


assignmentPreferenceList.SelectedValue = (dr["assignmentPref"].ToString());

Works great with 1 assignment preference but with 2 or 3 it craps out.

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Web Forms :: Populate A Multicolumn Listbox From Excel?

Jul 25, 2010

I need to know how to populate a multicolumn ASP listbox on a Web

form using excel 2003 data . ( 2 columns in the Listbox )

When the user makes a selection from the Web listbox I want to

populate part of the web form, but I want to post the full form data to

another spreadsheet. ( NOT ACCESS)

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Web Forms :: Programmatically Populate A Menu Control?

Apr 1, 2010

I've an asp menu on my site. I need to dynamically populate this from my database depending on a choice made by the user.

Basically, when entering the site the User chooses a product category and this selection determines the options in my menu. I'm totally lost as to how to populate my menu each time the user changes their category - I've only ever hardcoded in the values to a this menu type so I've no idea how to programmatically populate it.

From what I can gather, it seems that its best to populate the menu via XML - if this is so could someone post a sample of what this XML structure (or let me know ehere I can view this)

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Forms Data Controls :: Populate ListBox From Stored Procedure?

Aug 11, 2010

I have a listbox which I need to populate with the results from a stored procedure. I have a class Ethics and I can call my stored proc there but I don't know how to populate the listBox from this point on. Here's what I have so far:


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Web Forms :: WebParts - Populate Form Immediately After ListBox Binded?

Feb 3, 2010

The user has to select from the ListBox to populate the DataGrid control. However, the Default value in the ListBox does not cause the DataGrid to be populated. Why is this?


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Web Forms :: How To Populate A List Control From SQL Table Programmatically

Nov 10, 2010

I would like to use a C# foreach loop to access a column in all records in one of two tables that can only be determined at runtime. I have used the foreach command with arrays, but I don't know how to use it with a table in an SQL database. I was using a query command and Reader inside of a do-while loop that fails after all records had been read.

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Web Forms :: Populate ListBox Selected Values From A Comma Separated String?

May 7, 2015

I want to bind list item with selected value only, like i saved selected values of list item in Database as 1,5,8,9 in database.

Now in case of edit i want to fill list item with samevalues and select only those whose value i saved in database.

Dim VerticaID As String
For Each item As ListItem In lstItem.Items
If item.Selected Then
VerticaID += item.Value + ","
End If
VerticaID = VerticaID.Substring(0, VerticaID.Length - 1)


How to Select Only Selected values in list item.

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Forms Data Controls :: Programmatically Populate A DropDownList In A Formview?

Apr 24, 2010

I have a dropDownlist in a Formview Edit and Insert Template that is Bound to a Field, It is for a credit card expiration date, so I want to programatically populate it so it will automatically show the next 8 years from this year. Works fine!

Except When I add it to the Formview, and click on edit it gives me an error basically saying my record does not match the list item data, but it should since it shows the year just fine. So I am figuring that it is not binding the ListItems to the dropdownlist.

I have tried every event I could try and I always get the same error. I have tried the ModeChanged, DataBound, DataBiding, PreRender, Load on both the Formview and the DropDownList, but no go. How do I do this?


This works fin on a DropDownList that is not in a FormView, so I know its not the Code. and the record I am updating is 2010, so the record is not out of range

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C# - Use An Array To Populate A Listbox?

Jan 7, 2010

The website I am working on will contain a drop-down list that shows a number of reason codes.

Is it possible to populate a drop-down list with an array derived from a custom class?

Something like this:


<asp:DropDownList ID="ddlReasonsWhy" runat="server"></asp:DropDownList>

ASPX Code Behind

protected void Page_Load(object sender, EventArgs e)
//instantiate custom class
Class1 reasonsList = new Class1();
//populate reasons list


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How To Populate A Listbox In C# With Values From A Grid

Apr 9, 2010

Hey what i am trying to do is i have a listbox with some simple values in it


and what i want to do is add a value that has multiple values to it...for instance i want a value = All DEV which will represent many values in itself so that once ALL DEV is selected it actually has many different numbers assigned to it. Can this be done? I understand that the value 1 has just one value behind it, same as 2 and 3 but I want the All DEV one to have multiple values behind it such as 5,6,7,8 for clicking just the ALL DEV selection.

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VS 2008 To Populate A Listbox With The Name Of The Reports?

Feb 11, 2010

From the asp.net page, I would like to view the reporting services reports i.e. the .rdl files.I am using a reportviewer to access one of the reports as follows. Notice that I have hardcoded the name of the .rdl report.

Question:There are several reports. The names are stored in a table in the database. Do you know how I can populate a listbox with the names of the reports but do not know how to show the selected report in the viewer. Notice that at present I am hardcoding just one name and not sure how to be able to show the selected report

<rsweb:ReportViewer ID="ReportViewer1" runat="server" ProcessingMode="Remote"
Font-Names="Verdana" Font-Size="8pt" Height="1000px" Width="1000px" >
<ServerReport ReportServerUrl="http://reportserver/reportserver"

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Populate Dropdown Listbox Using A Web Service?

Nov 15, 2010

how to populate a drop down listbox (dlName) from a web service with last and first name i.e. (LastName, FirstName). My Web Service XML that I am requesting is as follows:

<?xml version="1.0" encoding="utf-16"?>
<FindPartnerContactsAction xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">


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Populate A Listbox Or DropDownList Or TextArea By Program?

Jan 13, 2010

I have been trying to populate either a listbox, dropdownlist, or textarea with a large amount of numbers. I can create the list by manually putting in the numbers I want but that is not what I really want to do. There are too many numbers anyway. Is there a way to use maybe an array and a for next loop to put many numbers in a list where you can scroll down and see each item entry.

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C# - Putting Tooltips Programmatically On ListBox Class?

Mar 15, 2011

I have created an asp:listbox and in the cs file, I am trying to bind it to a datasource. However, I want to put in tooltips for each option so that when you hover over a multiple-listbox you will see the name of the item in both the listbox and the tooltip.The following code is what I have tried (which obviously will not work), which will just put a big tooltip for the "select" html tag, instead of the "option" tags individually.I think I need a loop, but I'm not sure how to add attributes to each element and the ASP documentation is no help. I bet it's an easy solution, but I can't figure out how to do it.

LBRangeOfUsers.DataSource = GetSource();
LBRangeOfUsers.DataValueField = "id";
LBRangeOfUsers.DataTextField = "desc";


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SQL Server :: Using A Trigger Or Anything Else To Populate Two Tables?

Aug 20, 2010

I'm creating an application that's supposed to first add a record to table1, and then get the ID from that record to use when adding a record to table2, to be able to associate these two records with eachother.

The user gets to type in some values that goes to table1, and some values that goes to table2, but before the insert statement for table2 is executed i need the ID from the recently added record in table1. Some dude told me to use a trigger for the autopopulate purpose, but does that really work when i also need to save some values that's user input, and when those values doesn't get saved in table1?

Are there any other way to do this or can i send values to a trigger?

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Retrieveing Multiple Values From Session To Populate ListBox?

Jan 9, 2011

I am trying to retrieve multiple values from the session variable in which I stored the values as List. Here's the code I applied but this gives me only the lst value from the list in the output.

Array k= yourlist.ToArray();
for (Int32 i = 0; i < k.Length; i++)
Int32 x = Convert.ToInt32(k.GetValue(i));
SqlCommand cmd2 = new SqlCommand("select id,name from plugins where id =" + x, con);
SqlDataReader dr2 = cmd2.ExecuteReader();
if (dr2.HasRows)
while (dr.Read())
ListBox2.DataSource = dr2;

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Data Controls :: Populate GridView Cell Value Using ListBox

May 7, 2015

Trouble to retriving gridview cell value in Listbox.


textbox code work perfectly

Problem in listbox how to solve...

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Data Controls :: Populate GridView From ListBox Items

May 7, 2015

Lets say I have ListBox1 (1,2,3,4,5,6) and a ListBox2 (A,B,C,D,E,F)..

and a Button and a GridView. Now when I click the Button. I want a GridView Column 0 to be populated by ListBox1 and Column 1 to be populated by ListBox2. .  C# / Asp.net.

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DataSource Controls :: Create And Handle Wide Tables Programmatically?

Apr 15, 2010

I have a set of keywords (about 1000 keywords), and I want to build a wide table, up to 1000 columns:

+each column corresponding to a keyword

+each row will represent an article document, which each cell will be the frequency of the keyword in the document

How to do that in a programmatically way? (e.g., using Linq and C#)

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Data Controls :: Populate CheckBoxList From ListBox Data And Vice Versa

May 3, 2014

i have been trying to solve this issue for over a month and i tried many different things

i want my shopping cart list box to have items in it then I save all of those items in a session variable.  I pull that session out on my checkboxlist page and I want it to autocheck all the items that were in my previous listbox that are now in the session

I also want to to this the other way so I can check a new item in my checkboxlist and I want it to automatically put the item in the listbox The issues I have been getting is a ListItem error or a List<Product> Error it does not work no matter what ways I try it

Here is my code that I have tried

<asp:ListBox runat="server" ID="AvailableProducts" Height="300px" Width="300px" SelectionMode="Multiple" ></asp:ListBox>
<br />
<asp:Button runat="server" ID="addProduct" Text=">>" Width="75px" OnClick="addProduct_Click1" />
<td style="width: 200px; text-align: center ">
<asp:Button ID="submitprods" runat="server" Text="Submit" OnClick="submitprods_Click" />


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DataSource Controls :: How To Populate A Listbox With More Than 1 Datasource

Jul 18, 2010

I need to populate a listbox with queries from 2 sql tables, but I can only see how to populate it with 1 datasource.

Do I need to do some hand coding? If so, where should I put it?

I'd also like to add some text items to the listbox so I could say populate the listbox with a query, plus an "other" option, so that if "other" is selected, a textbox will appear that will let the user specify a new item.

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Forms Data Controls :: ListBox, Array List / Update The Listbox Content?

Mar 26, 2011

I 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.

&#65279;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(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
End Sub
Protected Sub btnDeleteSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDeleteSwap.Click
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)

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Web Forms :: Adding Item To Listbox From Another Listbox Taking Way Too Long?

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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