I'm currently working with a control that inherits from DropDownList (it has some extra functionality that isn't really relevant to this question, but it gives me a nice place to implement the extra stuff I'm gonig to discuss).
We're using data binding, with the DataTextField and DataValueField working absolutely fine. However, I find myself in need of a similar field that will control whether or not the item is enabled. (I've already overridden the RenderContents method of the control so it properly renders non-Enabled items, since DropDownList doesn't do this by default.)
Thus I'd like to know how to override the DropDownList's data binding so it acts exactly as normal, except a further field from each DataSource item is applied to each ListItem's Enabled property.
(NB: the field I'll be binding to isn't a straight boolean, and doesn't have an explicit/implicit cast to boolean, so I'll probably be "passing" it as a string.)
I have a dropdownlist for which I am loading data from excel. Excel has 2 columns Product and Email. Data in Product column is binding to DataTextField and Email column to DataValueField. The dropdown works fine when email is different for different product but when email has same value for different product then whatever I select, on postback the selected value changes to the first item of the same email value.
Below are the sample data in Excel to show the behavior of dropdown
Example 1. (Drop down works fine for this example)
Example 3. (In the example below, when I select iPad the dropdown works fine but when I select iPhone 3G or iPhone4 on post back the dropdown selected value will be iPhone 3G. Basically, on selecting iPhone4 here, on post back it shows iPhone 3G)
I am trying to find out if there is an easier way to insert datavaluefield and datatextfied in a DDL.... I have two dropdownlist...the second ddl prepouplates based on the first one. All works now cos i have all my datavaluefield inserted. Now i was woundering if there is a way to caputure the datatextfied too so users can see it instead of seeing the ID alone. here is my code
I have used a webservice to populate a Rad Combo Box, when the page is loaded, I need the ability to display the DataTextField, based on the returned DataValueField item
DataTextField="Category" DataValueField="CategoryID" (coming from Dropdownlist)
I want to move a Item (a Category) from listbox1 to listbox2...but how do I move this Category Plus the CategoryID to lisbox2 (CategoryID should not be visible but still be associated with Category in Listbox2)
So I want the newly added Categories to be visible in Listbox2 ..but their CategoryID's must be invisible...but still be associated with their Category....
and when I save these Categories from Listbox2 to the Database.....its should be the CategoryID's that should go into the Database.....not the actual Category
So to explain again in a different way
I want to Move a selected DataTextField & its DataValueField from Listbox1 to listbox2
then only the array of DataValueField must be saved to Database
I have a list <Department> say Company.Departments with object Manager and ManagerId, ManagerName as property of Manager. I would like to fill the dropdownlist with managers as below
Is there a way to display several records in the datatextfield in a asp dropdownlist? I know the fix when populating the dropdownlist from a datagrid was to edit your SQL query but the values I am receiving are sent via an XML string. The idea would be to display a name, price, and date in the dropdown text. Currently I am getting the following error: DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'MonetaryValueServiceType' While using UPSDropDown.DataTextField = "MonetaryValue" & "ServiceType" Is there a work around to do this? The only other option is to use radio buttons (which are also a nightmare).
So I have a major issue and cannot find any solution online to solve it excepting one that is singlistviews. But i am also encounting some probs with listviews since i am not sure of to use it.Anyways so my major issue is that I have drop down lists that are being populated by a sqldatasource. Users are filling out a form selecting values in the drop down list which is fine, the prob exists with editing a record. I have the dataValuefield to be the Id of the data and the selected item in the dropdownlist id is being stored in a database. So I have the data in the database that is the Id of the selected item however I cant use the dropdownlist1.selectValue ='idNo' since that only works with listitems.
How can i access the dynamic rows in a dropdownlist that is being populated by a sqldatasource and set the selected item to a particular item?Any insight is greatly welcome. Even how to use listviews
Public Class State Public Property StateId As Integer Public Property Name As Dictionary(Of Integer, String) End Class
Name(x) contains the state name in different languages. I get a collection of State from the method StateManager.GetAllStates() and I want to bind this collection to a DropDownList. The problem is that I can't find how to set the DataTextField property to let's say stateList.Name(1) which is the english name of my state.
Dim stateList As StateCollection = StateManager.GetAllStates() Me.DataSource = stateList Me.DataValueField = "StateId" Me.DataTextField = "Name(1).Value" <-- Problem here Me.DataBind()
I would rather not magic string my DataTextField/Values on the dropdownlist after setting up the source as a List collection of objects.
I was thinking I could use the DataSource properties but it doesn't seem to like the couple of ways I tried.
WORKS BUT NOT IDEAL //set the datasource to the returned List<Cart> this.cartDdl.DataSource = CartManager.Load(WebProfile.Current.UserName); //set the DataValueField to the Cart.ID property this.cartDdl.DataValueField = "ID";//would rather use the obj property Cart.ID //set the DataTextField to the Cart.Description property this.cartDdl.DataTextField = "Description";//would rather use the obj property Cart.Description //Bind the ddl to the datasource this.cartDdl.DataBind(); HOW I WOULD THINK IT COULD WORK this.cartDdl.DataValueField = ((Cart)this.cartDdl.DataSourceObject).ID; this.cartDdl.DataTextField = ((Cart)this.cartDdl.DataSourceObject).Description;
I'm using radcombobox and radgrid.Here i want to display ward_no but store ward_id in database.But in my code ward_id field not store, ward_no is store. What is the problem?
I'm retrieving the data from database to fill the combobox. The name of the combobox is kategorilist. I want to set a string value to datavaluefield of the combobox. Also I'm using datalist with paging in this page. Datalist is binding with the selected value of the combox everytime.
What do I use to set the dataValueField of the Select List when I'm using a list of strings. I want to be able to set the value of the option in the select. If i have:
List<string> list = new List<string>(); list.Add("apple"); list.Add("orange");
I have a dataset which I am binding to a listbox. However, I want to combine two of the fields to make up the DataTextField. Is this possible, or am I going to have to loop through the Data Rows?
<asp:SqlDataSource ID="sql_Region" runat="server" ConnectionString="<%$ ConnectionStrings:Test %>" SelectCommand="SELECT Number, Name FROM table_Region WHERE Number = @Number" SelectCommandType="Text">
<asp:DropDownList ID="dd_Region" runat="server" DataSourceID="sql_Region" DataTextField="Name" DataValueField="Number" /> Ok, I have this dropdownlist and I want to use the DataTextField for a label control.
Something like this. I want to show the region as a label but I only could get the DataValueField value not DataTextField value. Does anybody knows? <asp:Label ID="label_Region" runat="server" /> <C#>
label_Region.Text = dd_Region.SelectedValue.ToString(); <--I know by doing this, I can get the DataValueField but. label_Region.Text = (DataTextField) <<--How do I get this value? I want to show the region name not the region number
I have 2 dropdownlist - State and City. I want to fill city drop down list on selectedIndexChanged event of state drop down list. I fill the State ddl ( DataTextField = "Locationname" & DataValueField = "Locationid" ) using linq and when i changed state I didn't get "Locationid" and I got error - " conversion from string "Locationid" to type "Double" is not valid" .
I am not sure if my subject is phrased properly but here is what I am getting problems with.I have a detailsview which had about 3 dropdownlist (ddl) on it. The DDL's works fine when I insert a new record or I try to edit an existing record.But when I just want to view the data in the detailsview it displays the primary keys (DataValueFields) instead of the associated DataTextField Value.
