Make Item In DropDownList Unselectable

Jun 10, 2009

Using VS.NET 7.1, VB.NET 2003 , SQL SERVER 2005 EXPRESS, ASP.NET 1.1Is there anyway to make an item in my dropdownlist unselectable, I am databinding to a table and setting the items up like this, so the is something to use if it is possible:[code]

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Asp.net - Make First Item On Dropdownlist Select?

May 20, 2012

I want to make my dropdownlist selected first value "--select--" when first load page as i need to force user to choose an event from list. I am blur since I need to perform other function at page_load to check checkbox enable properties, so that I not sure where should I put the coding to Add empty value to dropdownlist.

I did put the following code in page load but nothing happen, the "-select- also no appear in the dropdownlist.

[Code]...

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Adding Item Only Once In Dropdownlist

May 12, 2012

I am using ASP.NET with VB.NET as background code. I have 8 ImageMaps in my webform Estimator.aspx.Each ImageMap represents a car part (Front Bumper, Rear Bumper, Mirror, Hood, Sunroof, DoorShell, Headlights, Tail lights) and I have a dropdownlist ddlChosenParts. When the user clicks on any of the 8 ImageMaps, I add the PostBackValue to the dropdownlist ddlChosenParts.The problem is that if the user clicks on the same ImageMap twice, the PostBackValue is added twice.I want to check if ddlChosenParts contains the ImageMap's PostBackValue and if it already contains it, do not add it again. That means that if the user clicks more than once on the same ImageMap, it's PostBackValue is only added once in ddlChosenParts.I have this code but i'm getting an error: Value of Type String cannot be converted to ListItem. [code]

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DropdownList - How To Add Item Property

Aug 31, 2010

I have created a dropdownlist which I choose wizard way to fill data in it. and its property like:
DataTextField=Item
DataValueField=ItemCode

I go to properties of this dropdownlist and then I add Items property as the following:
Enabled=true
Selected=false
Text=---choose---
Value=-1

And the code behind is that:
dim strItem as string= ddlItem.selectedItems.text
if ddlItem.selectedItems.text.trim="---choose---" then
Label1. text=" You haven't choosen any items yet!"
exit sub
else
Label1. text=" You have choose"
end if

But when I start debugging this:
strItem always gets "---choose---" text eventhough I choosed other items.

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Set Selected Item For Dropdownlist?

Apr 21, 2010

I would like to set the selected item in the combo box. It is working, If the dropdownstyle is dropdownlist. But not working, If the dropdownstyle is dropdown. How to make it work when the style is dropdown?

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How To Select The First Item Of A DropDownList Combobox

Apr 14, 2012

I have a combo box with four lines of data:

Reina Beatrix Arpt, Aruba, AW (AUA)
Grantley Adams Intl Arpt, Barbados, BB (BGI)
Owen Roberts Arpt, Grand Cayman Island, KY (GCM)

[code].....

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Select Item From WebBrowser DropdownList

Jun 18, 2012

I'm working on a webpage automation project. And I am very new in this. I want to use Webbrowser control to select an item in the dropdownlist. Now,how do I programmatically select an item from the HTML snippet below. I would like to select, say for example, "2009" from this

HTML code:
<select name = "yr">
<option value= "">Year</option>
<option>2009</option>
<option>2010</option>
<option>2011</option>
<option>2012</option>
</select>

I am trying the following code :
For Each element As HtmlElement In WebBrowser1.Document.GetElementsByTagName("select")
If element.GetAttribute("name") = "yr" Then
element.SetAttribute("value", "2011")
End If
Next

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Select The Selected Item Of The Dropdownlist?

Sep 17, 2009

I have an application to display the records of the customers. I am using the wizard to do the edit and delete of the records. In one of my column consists of dropdownlist. When I wanted to edit the changes by selecting the dropdownlist, it didn't display anything after I selected the changes. I have to make changes because my friend did not finish up this part which selecting the selected item to make the editing of the records.

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Asp.net - Refreshing DropdownList Data, After A New Item Has Been Selected

May 10, 2011

I have two dropdownlist, one is State and one is City. When a State is selected, the City dropdownlist becomes populated. At that point you can select a city, however if you select a city and go back and select a different state, the city dropdownlist is populated by the cities for both states. How do I get it clear the cities for the first state?

Here is the code behind

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
End Sub

[Code].....

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Going Back & Forth With Two Forms - Working With DropDownList Item

Oct 17, 2010

So here is the deal. I am making my own program for fun, and I have this road block. Basically I have a 'Parent Form' which we'll call 'frmMain' and I also have another form which we'll call 'frmSchedule' (work with me here)

[Code]...

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Select Dropdownlist Item After Button Click?

Oct 16, 2009

I have an asp drowndownlist and I'd like to change its selection after a button click. I can't seem to find a way to do this, is there a way? (Its a reset button of sorts, and I would like the dropdownlist to return to the "default" value.)

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Possible To Make List Box Item Height For Item Depending On Amount Of Lines That Item Contains?

Jan 1, 2012

I have a list box on the form which functions as a copy/paste. When you copy something, it is automatically added to the list box as a "clipboard helper". Here is the problem,however: if the text is more than 1 line, the list box does not show all the text.It ends up looking messy.So getting back to my question, is it possible to make the list box item height for an item depending on the amount of lines that item contains?This is a one line sentence in the list box and should take up one line.This is a multi line sentence in the list box and should take up two lines for item height.

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VS 2008 Making Radio Buttons Unselectable?

Jul 5, 2009

I have a group of radio buttons inside of a panel box and I need to make them unselectable at certain points in my application. When I use the RadioButton.disabled property, it does the job, but it also dims the button. Is there a way to disable the button without changing it's appearance?

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Asp.net - When Using Datasource And Databind To Set Items In A Dropdownlist - Index Is Always The Value Of First Item

Jan 18, 2012

I 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]...

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Change Selected Item Of DropdownList On Button Click?

Apr 10, 2012

I have to hidden buttons on my page that I can trigger using JavaScript (__dopostback...). I also have a list of object on my page and a dropdownlist giving the user the possibility to sort those objects on the page. My code checks the current value of the dropdownlist on Databind of the list and applies the chosen sort method to the list. The first button is triggered when the user has selected another sort method from the list.

The second button is triggered when the user adds a new item to the list. Sortmethod "sort2" should be set automatically in the dropdownlist if this happens. So when the second button has been clicked, I need to set the selected item of the dropdownlist dynamically so I can check the value of the selected value later in the DataBind method of the dropdownlist and know what sort method should be applied.

I don't succeed in changing the selected value dynamically. I'm using to controls: First is the objects.vb and the second is the ObjectContainer.vb. Objects.vb contains the two buttons, the dropdownlist and an instance of the objectcontainer. The objectcontainer contains the list with objects that needs to be sorted based on the value selected in the objects control.

Objects.vb:
Private sortMethod As DropdownList
Private container as ObjectContainer
Protected Overrides Sub OnInit(ByVal e As System.EventArgs)
MyBase.OnInit(e)
EnsureChildControls()
End Sub
[Code] .....

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Filling Windows Form By Selecting Dropdownlist Item?

Nov 2, 2011

I am new to programming and i am working on a windows fom app. In this moment i have my windows form set with several controls that insert data into sql db. Now, what i need is this:

When the user select a employee name from my dropdownlist, i want the form automatically fill with the data inserted in the past to the tables db. Is like choosing the different profiles by selecting the name in the dropdownlist. I have many controls to fill, name, secondname, lastname, telmobil, address, etc.

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Adding Items To DetailView DropDownlist In Insert ITem Template?

Jan 13, 2012

I 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]......

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How To Make DropdownList No Postback

Sep 12, 2011

How can I make dropdownlist no postback - I have a dropdownlist which I put a code in selected indexchanged - basically for every indexchanged the code will connect to sql and get values then populate textboxes with values.

Here is my code
<asp:DropDownList ID="ddlSalesOrg" runat="server" Style="width: 200px;"
AutoPostBack="true" />

Obviously when I remove the autopostback="true" - then indexchanged will not function as expected.

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Make Dropdownlist Add Handler?

Aug 13, 2010

I would like to add handler to a dropdownlist which is dynamically created. I have the following code:

Dim ddl1 as new Dropdownlist
ddl1.DataTextField = "Hours"
ddl1.DataValueField = "HourID"

[code].....

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Dropdown - Make A DropDownList With Readonly Appearance?

Aug 5, 2011

I am developing desktop application using vb.net and vs2008.I have a DropDownList that I don't want it interact with use when the info is locked. But if I disable it, it is greyed out and the text is not easy to read.Is there any way to make radiobutton like readonly textbox?I want text of the DropDownList looks black and itself is not clickable.The above shows a disabled DropDownList with greyed out text and a readonly textbox

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Make GridView Work Like DropDownList Where Can Enable Postback?

Aug 28, 2009

How can I make GridView work like DropDownList where you can Enable Postback

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Browser Compatible Code To Disable A Dropdownlist When Another Dropdownlist Is Clicked Or A Checkbox Is Checked?

May 26, 2011

I 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.

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Make GridView Work Like DropDownList Where Can Enable Auto-Postback?

Aug 31, 2009

How can I make GridView work like DropDownList where you can Enable Auto Postback

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Asp.net - Populate DropdownList Based Upon Other DropDownList VB?

Jun 1, 2009

I 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

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Reciept Printing - Form Which Consist - Item Code , Item Name , Item Price , Quantity Of Item

May 25, 2012

Regarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.

Imports System.Data.OleDb

Public Class Form5
Dim con As New OleDbConnection

[CODE].......................

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Populate Dropdownlist From Another Dropdownlist?

Jan 15, 2012

I'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)

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Make Combine Listbox Item?

Mar 15, 2010

I was trying to combine the current orders so that the item will not be repeated but rather displayed as a tabulated results.

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Make Item In List Box Appear Selected

Nov 10, 2009

I'm trying to figure out a code to do the following:If the item is found in the list box, make the item in the list box selected.

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VB - Make The Price Corresponding With The Item Appear In The Label

Nov 12, 2010

I am writing a program that uses an array of structures to display a price in a label based on what item is selected in a list box(the data is stored in a text file). I am having trouble figuring out how to make the price corresponding with the item appear in the label. Currently, it just keeps showing the last price in the text file.

CODE:

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When Users Select Each Item Another Item Will Be Added To Second Listbox But It Is The First Selected Item

Jul 5, 2010

In my application I have a listbox and SelectionMode should be MultiSimple because users need to see which items they selected. In another tab we have another listbox this one should show all the selection users had done in first tab. Private Sub

[Code]....

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