Add Items In A Dropdownlist?
Mar 14, 2010how to add an item to a dropdownlist.i have tried this
DropDownList1.Items.Insert(0,
"Abu Dhabi")
DropDownList1.Items.Add(
"Dubai")
but nothing is showing in the dropdownlist
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Add Items In The Dropdownlist?
Nov 23, 2009Using VB.NET I want to add a data's in the Datagridviewcombobox column
Code.
cmd = New SqlCommand("SELECT Sched_Name from tb_Sched_Master", con)
ada = New SqlDataAdapter(cmd)
ada.Fill(ds1)
[code]....
But I cannot get the data's, what wrong in my code.
Asp.net - Duplicate Items In Dropdownlist?
Jan 5, 2011I'm designing a web page with two dropdownlists, one for the Make of a car, the other for the Model, both bound to a database with separate SQLDataSources, and using a distinct statement. I add "All" at the top of both by setting appendDataBoundItems = true and adding items named all. Then when I fill the Make with a querystring all the model items get added twice (but only the databound items).
Here's my code:
<asp:DropDownList ID="DropDownMake" runat="server"
DataSourceID="SqlMakes" DataTextField="Make" DataValueField="Make"
AppendDataBoundItems="True" EnableViewState="False" AutoPostBack="True">
[Code].....
Get Unique Items From DropDownList?
Jun 12, 2009I am trying to grab all unique items from a DropDownList. Is there a simple way to do this?
View 5 RepliesDisable Multiple Items From DropDownList?
Jun 6, 2011I would like to disable a specific items from DropDownList. I have below code but it does not working. DropDownList have 5 items.And,I'm getting error:Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index
Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged
Dim X As Integer = 0 <> 1
DropDownList1.Items(X).Enabled = False
End Sub
But, if I add a different value for X, then it disable 1st and 2nd item.
Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged
Dim X As Integer = 0 or 1
DropDownList1.Items(X).Enabled = False
End Sub
My goal is if I would have a 365 items in DropwDownList to disable items for example between 120 and 150.
DropDownList With Items Copied From Database
Mar 8, 2010I have an Web application that retrieves some db info and send it out to an html table. All created on the fly in vb code behind. For every post (row) in the db I also fill puts an instance of a Dropdownlist with items read from the db. That means that for every row I read from the database I read the same db info into the Dropdownlist (see the skeleton example below). A lot of overhead I think. It must be possible to create the Dropdownlist once before the loop and copy from that instance in the loop.
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cboCombo2 As DropDownList
Dim i As Integer
[Code] .....
Asp.net - Error Cannot Have Multiple Items Selected In A DropDownList?
Mar 14, 2012This is my code and i am getting an error ..Cannot have multiple items selected in a DropDownList. when the page loads it select "ALL" in DDLModality but when i change DDLModality.selectedvalue to any "value" then no error but again when i change to "ALL "getting the error.
onchange of DDLMODALITY submit the form
form1.target = "";
form1.action = "";
form1.submit();
[Code]...
Control Binding DropDownList Before Display Items?
Dec 22, 2010Im using Visual Studio 2008 (ASP.net) to build some web pages..
I have a DropDownList linked to a DataSource from data base to fill it automaticly, and it works perfect, but I want to modify the items before its displayed ?
Asp.net - Select Multiple Items From DropDownList Into TextBox, No Duplicates?
Dec 7, 2010i used the following technique to Select multiple items from DropDownList into TextBox with No duplicates, however i dont think it is the most proper way,
pressing again with same value selected choose another value from DDL and press button
here is my code Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click If TextBox2.Text.Contains(DropDownList1.SelectedItem.Text) Then
[Code]...
Asp.net - When Using Datasource And Databind To Set Items In A Dropdownlist - Index Is Always The Value Of First Item
Jan 18, 2012I am trying to use datasource and bind in my application to set a dropdown list to the results of a query. The dropdownlist populates correctly (shows each different type_name in the set) but later when I use ddltype.selectedvalue - I am always getting the value from the first item in the dataset. Here is the code.
[Code]...
Asp.net - Which Gridview Event To Use To Add Items To The Dropdownlist Used In The Edit Template
Oct 7, 2010I would like to show different values in a dropdownlist, while editing a gridview, depending on which user is logged in. For example...
The officer would see "Approved by Officer" status.
The director would see "Approved by Director" status
I am trying to add these programatically to a dropdownlist which I have in the edit template of my gridview (approvalsGrid). Here is my code:
Protected Sub ApprovalsGrid_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles ApprovalsGrid.RowUpdating
Dim ApprovalEditDD As DropDownList = CType(ApprovalsGrid.Rows(ApprovalsGrid.EditIndex).FindControl("ApprovalEdit"), DropDownList)
[code]....
I do not get any errors. But get an empty dropdown with no items. Am I using the correct event?
Disable Multiple Items From DropDownList. Someone Need To Check Code?
May 15, 2011I would like to disable a specific items from DropDownList. I have below code but it does not working. So, need someone to told me what I'm doing wrong. DropDownList have 5 items.And, I'm getting error:Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index
Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged Dim X As Integer = 0 <> 1 DropDownList1.Items(X).Enabled = False End Sub
But, if I add a different value for X, then it disable 1st and 2nd item. Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged Dim X As Integer = 0 or 1 DropDownList1.Items(X).Enabled = False End Sub My goal is if I would have a 365 items in DropwDownList to disable items for example between 120 and 150.
DropDownList - Adding Missing Items On The Fly To Avoid ArgumentOutOfRangeException
Apr 5, 2011I have a dropdownlist with a list of options which is subject to change (e.g. 'active users'). Another data source may include historical data, but I wish to use the 'active users' dropdownlist against it. This means an ArgumentOutOfRangeException will be thrown so I want to catch that, and insert the required entry into the dropdownlist on the fly.
I've seen a few suggestions that point towards overriding the ondatabinding event within the dropdownlist, I've managed to do this insofar as I can create a static listitem for example "Value does not exist" and bypass the exception. However I wish rather than "Value does not exist" so show the actual value which we were attempting to find in the ddl.
ondatabinding is passed a standard EventArgs item which doesn't offer much to go on, I can see there is a DataListItemEventArgs class - is this in any way associated with a dropdownlist? I tried directcast on the EventArgs but that didn't work.
So is there any way - within ondatabinding - of finding out the value we're attempting to set on the dll, which causes the ArgumentOutOfRangeException?
Adding Items To DetailView DropDownlist In Insert ITem Template?
Jan 13, 2012I have Detail In Which I USed as Dropdownlist to INsert Item Template and I Am trying to add items to Dropdown using vb.net code using for loop bu when THe Page Runs it adds the values Five times because total rows in detail view are five .Here is My Code
If Me.IsPostBack Then
If Page.User.Identity.Name = "gate" Then
For Each DetVW As DetailsViewRow In DetailsView1.Rows[code]......
Set Access To DropdownList Items Based On User Active Directory Group
Apr 20, 2011I have a webForm app that registers a user in the database based on the information provided with a web service, auto-generates a random password and username, and e-mails the user a link to take an application based on the marketing company selected. How do I get only the currently logged in user's groups to show up under the MarketingCo_DropDownList. Each user allowed access to the system will have membership in at least one of the marketing groups as defined by the web.config. For example, a user that is currently logged in and belongs to the BIG group under location "algACOMP_user_BIG", will only be able to see BIG in the Marketing Company drop down list. A user that is currently logged in and belongs to the NIS group located under "algACOMP_user_NIS" will only be able to see NIS in the Marketing Company drop down list.
Here's my best guess (located under Private Sub GetMarketingCompanies() method in default.aspx.vb):
If InStr(WindowsIdentity.GetCurrent().Groups = "AMG", item.MarketingCompanyShort = "AMG", CompareMethod.Text) Then
marketingCo.Items.Add(String.Format("{0} | {1}", item.MarketingCompanyShort, item.MarketingCompanyName))
For Each item In ac1
[Code] .....
VS 2008 Mdiwindowlistitem Dropdownlist - Copy Items And Add Back To List After Refresh
Jun 16, 2009In my project when someone logs in I refresh the overhead and side menus. My overhead menu is an extended menustrip component that I have made. I am able to clear the menu, reload it dynamically but I am not able to add/insert the open windows which are managed by the mdiwindowlistitem property. These are the items named "1 - form name " "2 - form name" etc.
I have been able to copy the whole dropdown list, and with some very hacky loop work I can take out everything but the items related to the forms. But when I add them back in, they are not on my list. The related forms are still open and if you click the maximize button to shrink a open child window, and then re-maximize that same window...the items magically show up in the list.
This ManageMenus sub is called during a login change. If you breakpoint on "openwindowslist" after it is returned with data, it has the proper entries and nothing extra. It just seems that the for/each add loop does not actually add the items. Or, if it does add them, I can't see them.
Tried both insert and add functions, same results both ways.
CODE:
In my xmlMenuStrip component this is the function that removes everything but what follows the seperator. It returns them in a list.
The format of the full window menu is:
CODE:
Browser Compatible Code To Disable A Dropdownlist When Another Dropdownlist Is Clicked Or A Checkbox Is Checked?
May 26, 2011I have a window having 2 dropdowmlists(schemename-SN and propertyno-PN) , one chkbox ,one "VIEW" button.SN has options "all" with value=0 and many other options with respctive values.Now,i want the code should behaves as follows:
1.0n window onload, SN must b visible bt PN nt.
2.if i select SN other thn All...the PN shud b visible and if i select "All" ,PN hides.
3.when check box is checked- PN hides,and if it is unchecked- PN visible..
Important:-This whole ddl n chk box are in updatable panel,button is nt in that.I want a browser compatible code so javascript can't b used directly(cz they give problem in mozzila and chrome).Right now, i have done this JavaScript and its is working fine.
function window.onload()
{
DisableProperty();
}
[code]....
but this code is not browser compatible.here onload,onkeyup and onclick functions are used , but they dont work in other browsers except internet explorer.
LINQ To SQL Query - Select Customer From Dropdownlist And Then Gridview - Load All Items Of All Orders Of That Customer
Oct 4, 2011I have the following problem: I select a customer from a dropdownlist and then the gridview should load all items of all orders of that customer. I have the following query:
Dim allorders = From ord In db.Orders
Where ord.CustomerID = Convert.ToInt32(CustomerDropDownList.SelectedValue)
[CODE]..............
I also tried to modify the query as follows:
Dim orderitems = From oi In db.OrderItems
Where oi.OrderNumber = (From From ord In db.Orders
[CODE]...........
But this does not work. I just started using LINQ.
Asp.net - Populate DropdownList Based Upon Other DropDownList VB?
Jun 1, 2009I have found a couple of examples on the internet to do this but really struggling to get it working in VB. (Tried a converter but had mixed results) I need the selection options of a Dropdownlist to be populated based upon the differing values in the first dropdown list.
Can anyone help with a releativley simple example in VB? Not fussed if the values are "hard coded" in the script. Or a SQL bit that pulls the data from a table
Populate Dropdownlist From Another Dropdownlist?
Jan 15, 2012I'm trying to write a program that selects an item (Area Code) from a combobox and this list gets the city that was associated with this area code (another comnbobox list)
View 1 Replies.net - Getting Selected Value From An ASP.NET DropDownList?
Oct 2, 2009I can't get the selected value of a programmatically generated list of items:
Protected Sub ddlMMMYY2_PreRender(ByVal sender As Object, ByVal e
As System.EventArgs) Handles ddlMMMYY2.PreRender
If Not Page.IsPostBack Then
[Code].....
If I try to get a value from a static DropDownList, <asp:listitem> works.
.net Dropdownlist Datasource?
May 17, 2011have 3 dropdown list one has pre set values and my post back works the other 2 has the data from the db when i try using post back on them i don't get anything in my grid view.
<asp:DropDownList ID="ddlname" runat="server" DataSourceID="SqlDataSource1" DataTextField="Venue_Name" DataValueField="Venue_Name" AppendDataBoundItems="True" AutoPostBack="True"> <asp:ListItem Text="All" Value="All" Selected="True"></asp:ListItem> </asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
[Code]...
.net Dropdownlist If Condition?
Oct 18, 2010I had posted this question before but didn't get the right answer -here's my code again with the if condition.
Dim provider As CultureInfo = CultureInfo.InvariantCulture
Dim a1 As DateTime = Nothing
If date1.selectedvalue isnot nothing Then
[code]....
Add A Default Value To Dropdownlist
May 10, 2009Actually I would like to add a default value to my dropdownlist before I bind the data from the SQL statement.Below is my codes,how should I change so that my dropdownlist default value will be "All" then only follow by the data retrieved from SQL? [code]
View 5 RepliesAdd A Default Value To Dropdownlist?
May 10, 2009Actually I would like to add a default value to my dropdownlist before I bind the data from the SQL statement.Below is my codes,how should I change so that my dropdownlist default value will be "All" then only follow by the data retrieved from SQL?
[Code]......
Add Empty Value To A DropDownList In ASP.net MVC
Jun 2, 2009I'm building a data entry interface and have successfully bound the columns that have reference tables for their data using DropDownList so the user selects from the pre-configured values.
My problem now is that I don't want the first value to be selected by default, I need to force the user to select a value from the list to avoid errors where they didn't pick that field and by default a value was assigned.
Is there a more elegant way of doing this than to add code to include an empty value at the top of the list after I get it from the database and before i pass it to the SelectList constructor in my controller class?
Assigning A Value To A DropDownList?
May 19, 2012I have a VB.Net Windows app that has a form with a ComboBox. It's dropdown style is set to "DropDownList". When I retrieve a record from the DB, I'm trying to assign a value to the "Text" Property of the ComboBox but it's not taking it. I've tried using the "SelectedText", "SelectedItem" properties and they're not working either.
View 7 RepliesDropdownList - How To Set Value Of ComboBox
May 28, 2010I am using the following method to set a value to ComboBox1 whose dropdown type is set to dropdownlist:
ComboBox1.Items.Clear()
ComboBox1.Items.Insert(0, "ABC")
ComboBox1.SelectedIndex = 0
Is there any other and better way to do it?
DropDownList Databinding?
Jun 2, 2009I want to databind my catagory table to a dropdown list but thecategories aren't going to be in order like:
categoryID Name---------------------1-----------apple2-----------wiper blades3-----------band aids4-----------pear5-----------raisons6-----------tiresHow would I be able to make the list look like:
[code].....
Dropdownlist Look Like Treeview?
Mar 10, 2009Is the anyway to make a dropdownbox look like this
402-2198 474A 475E 474M402-2602 476T 475B 473Q