Web Forms :: Difference Between DropDownList / ComboBox And ListBox
May 7, 2015What is the difference between DropDownlist, ComboBox and ListBox?Â
View 1 RepliesWhat is the difference between DropDownlist, ComboBox and ListBox?Â
View 1 RepliesWhen the WebPage loads i would like for the Text to be cleared in Ajax ComboBox and/or DropDownList. However Setting the text to nothing or null doesn't seem to work. So I did some searching and found this...
[Code]....
Is there another way to clear the text other then adding a null item to the list? I don't really want the user to have a selection of "null", this seems like a hack job.
It’s good Filter and Search ASP.Net DropDownList items using JavaScript.Here used two components textbox and dropdownlist. I want use search only in dropdownlist whithout textbox.
View 1 Replies[Code]....
View 6 RepliesIn my code I have 2 ComboBox DropDownLists, created by the code below. The problem is that when the value of the DropDownlist get changed, the other one value also changes.
public class Translate
{
public string CountryName { get; set; }
public string CountryCode { get; set; }
}
IList<Translate> languages = new List<Translate>();
languages.Add(new Translate("Select", ""));
languages.Add(new Translate("English", "en"));
languages.Add(new Translate("French", "fr"));
languages.Add(new Translate("Spain", "es"));
ddlFrom.DataSource = languages;
ddlFrom.DisplayMember = "CountryName";
ddlFrom.ValueMember = "CountryCode";
ddlTo.DataSource = languages;
ddlTo.DisplayMember = "CountryName";
ddlTo.ValueMember = "CountryCode";
i want to bind the records from the DB to ajax combobox dynamically based on the serach criteria. the record count may be around 6000. use ajax combobox and show 10 records at a time. how to do this. i am new to ajax combobox.
View 1 Repliesthere a way to change the width of the combobox control dropdown list? The problem is that because of the entries in it width of the combobox' dropdownlist exceeds the width of the screen resolution itself.So, is there a way to set a fixed width or any other better solution?
View 4 Replies1) 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.
How i can use dropdownlistbox instead listbox for this code?
 <div>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<link href="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.3/css/bootstrap.min.css"
rel="stylesheet" type="text/css" />
[Code]....
I specified DropDownStyle = "DropDownList", so that users are not allowed to enter text that does not correspond to an item in the list.but my problem is that I can not typed text in the combobox even if I type the text that corresponds to an element of the list of combobox!!
<asp:ComboBox ID="Cmb_unitte_filtre" runat="server"
AutoCompleteMode="SuggestAppend"
DropDownStyle="DropDownList" MaxLength="0" AutoPostBack="False" ></asp:ComboBox>
is there any way to use textbox which perform the functionality of combobox.Â
View 1 Replies1. textbox (Search for staff)
2. Dropdownlist( Search for department)
3. Listbox( Populate staff name based on textbox or dropdownlist)
I am able to populate the staffs indenpendantly according to what is written in textbox or dropdownlist. Whar i wanted to do is mix the population of staffnames from textbox and dropdownlist. In other words, when i search "sandra' in textbox and select a Department A , the listbox will show all the sandra from Department A only.
[Code]....
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
I have the following items bound to my combobox:
Value: 1, Text: SNS
Value: 2, Text: ING
Value: 3, Text: ING
Choosing value 1 results in a SelectedValue of 1
Choosing value 2 results in a SelectedValue of 2
Choosing value 3 results in a SelectedValue of 2
does the combobox has as a disadvantage that the Text has to be unique?
I'm try to add a combobox to my form which i have done and populate it with the infomation i need but i want to stop the user from being able to edit the first 5 character in the textbox part of the combo box( 1 is this possible 2 am i going about it in the right way).
I have 3 columns fro a db to enter ips ie 123.456.7.89 at the start if each number i want (SE1)(SE2)(SE3) which i can do at the momment . So I get in the combobox list 3 items with (SE1)123.456.7.89 OR just (SE1) depending of i a result is returned from the DB. However i don't want the user to be able to edit out the (SE?) part of the sting in the textbox. When editing i've tried used the text change event to try and capture the change and make sure the string.length > 5 , but the event does not fire also when i leave the combobox it it adds to the combox list. If I refersh it goes back to how it should be with only the 3 items.
I have a problem with CascadingDropDown... I have two related comboboxes, where the second is a slave of the first (e.g. country the first, cities the second). What I want is that if I select one country from combobox 1 then the second must be "filtered" by that selection (it should display all the cities inside the selected country, and the actual CascadingDropDown implementation is OK), but if I leave the combobox 1 in the default option (e.g. "Please select a country") I want the second to display all the cities I have in the database. The problem is that when selecting default option for combobox 1 the second combobox is disabled and a postback to my webservice never occurs.
View 3 RepliesHow 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>
in aspx i written as follows
<ajaxToolkit:ComboBox ID="cmbAddressAlias" runat="server" DropDownStyle="Simple" AutoCompleteMode="Suggest" CaseSensitive="false" AutoPostBack="true" RenderMode="Inline" Width="170px" CssClass="cmbProvince" OnSelectedIndexChanged="cmbAddressAlias_SelectedIndexChanged"> </ajaxToolkit:ComboBox>
it binding correctly(datasource dynamically binded) and it raises event too while changing index but it is not raising event when we manually clearing the combobox text..if currently combobox having text "ASP" then i manually select that entire text and using del key i am deleting but it is not raising event for me.. when i change index it automatically raising event...i need to raise event while combobox is empty...
Maybe the question has already be posted, but I didn't find it. I have in my web page two controls: a dropdownlist and a listbox My goal is to fill the listbox with values from my database depending on what I have selected in my dropdownlist. I wouldlike to use the CascadingDropDown component for that. Is that possible? (I tried on my own and I get this error message
Exception Details: System.InvalidCastException: Unable to cast object of type 'System.Web.UI.WebControls.ListBox' to type 'System.Web.UI.WebControls.DropDownList'. I think it's when i tried to fill the listbox with this function:
[Code]....
I have to parse the data to dropdownlist and then choosed the data from dropdownlist, this data will be appear in listbox. But my problem is when I parse the data to dropdownlist, I used updatepanel. It is no problem. It is okay. And then when I choose the data from dropdownlist, It can't be appear in listbox. Why? I have no idea. My code is :
<asp:UpdatePanel ID="UpdatePanel8" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<asp:DropDownList ID="ddlChoiceRVS" runat="server" AutoPostBack="True" Width="500px"
Enabled="false" onselectedindexchanged="ddlChoiceRVS_SelectedIndexChanged" />
<asp:ListSearchExtender ID="ddlChoiceRVS_ListSearchExtender" runat="server" Enabled="True"
TargetControlID="ddlChoiceRVS">
</asp:ListSearchExtender>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="lb_Edit" EventName="Click" />
</Triggers>
</asp:UpdatePanel>...........................
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.
View 3 RepliesHow do you refresh a combo box from clicking on something from another Combobox (using Visual Basic).
I don't want to use a button for this as i know it works that way by using .Databind() on the other combobox.
In access it is so easy by using the click event on a combo box but visual studio does not seem to use it.
I'm using Data Annotations to validate my fields, Eventhough field is marked with Required Attribute the DropdownList/ListBox Value doesn't fire up to show they are required. how can I solve this.
View 3 RepliesI have one dropdownlist and textbox which is databinded and will display retrieved data on a listbox, i wanted to clear the textbox and dropdownlist using a button after displaying data on the listbox.
View 2 RepliesI 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.
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(SwapValue)
lstSwapList.Items.Add(Counter)
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
Next
End Sub
Protected Sub btnDeleteSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDeleteSwap.Click
lstSwapList.Items.Remove(lstSwapList.SelectedValue)
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)