I use a dropdown to select a record and set another dropdown to a preselected value as mentioned in the record. But when I initiate the record reading, it gives me the following error which I can't resolve. dd.. has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value
[Code]....
The vb code related to the selection dropdown is: [Code]....
I have a dropdown list that is populated by a dataset (Data being extracted from DB). Based on the selection made by the user I call OnSelectedIndexChanged, and populated the form with the relevent info. The problem I am having is the first item in the list is selected by default, so if the user selects this option OnSelectedIndexChanged does not fire. To work around this I add a default item to the dropdown list after populating it with the dataset as shown here;
jobStandardActList.Items.Insert(0,
jobStandardActList.SelectedIndex = 0;
jobStandardActList.SelectedValue =
"----Select an Item----");"";
This works fine, however if the user selects an item from the list, and then proceeds to selects the default item "----Select Item----" i receive an error. sys.webforms.pagerequestmanagersevererrorexception: an unknown error occured while processing the request on the server. The status code returned from the server was: 500
i have a dropdown with month names if the user has data for the month tht is selected then gridview displays the rows with day nos as per the month but if the gridview has no data for the same the dropdown or gridview via some event should call a insert procedure to insert data into the table for tht month with daynos ad rebind the gridview witht the rows just created
View 6 Repliesi have a country dropdownlist (asp.net server side control) where in i wish to set United States as first country from list of alphabetical countries in drop down. How should i do that?
Plus on selection of country the respective state gets fired up. So if USA is selected in country by default, the states need to be selected by default (Of USA of course!!!)
Below is the code of country dropdown.
[Code]....
I have a DropDownList that is bound to sql datasource . How can i set its default value to Null and change its value to one of its items programmicaly.
View 3 RepliesI'm binding data to my dropdown as follows:
[Code]....
So my dropdown will be populated with a list of years that could be different depending on the SchoolID passed in. I want my default value to be the max returned in the SELECT query minus 5 (so in other words, the max index minus 5). For example, if my list of years was:
2004-05
2005-06
2006-07
2007-08
2008-09
2009-10
2010-11
2011-12
2012-13
2013-14
2014-15
Dim conn As String = ConfigurationManager.ConnectionStrings("Elevation-TestConnectionString").ConnectionString
I am not trying to achieve anythign fancy but just trying to set default selected value for one of the dropdown that I am using. for that I am doing Items>selected= true for whatever item I want selected when i load the page. In my case, it is a month dropdows and I am selecting date 14 as selected default value out of all 30 values but somehow, out of the blue .NEt decides to show me 29 instead of 14. I am not sure if there is some another setting that is overwritting this value.
View 2 RepliesI want to have a default value/item of "---Select One---" and then list all of the values from the SQL statement. Currently I am having trouble doing this. I tried to add it to the List Item but it doesn't show on the page.
View 25 RepliesI have a date list in DropDown and there is no blank item in it. Dropdown item seems to be following:
01-02-2010
02-02-2010
03-02-2010
04-02-2010
DropDown is bounded by sqlDataSource.
If 04-02-2010 is the last date for today then I want to display 04-02-2010 by default in the dropdown if the page load.
We are updating data on daily basis. So on next day the date will be 05-02-2010 so when the data updated then 05-02-2010 should be shown iby default in the dropdown.
I added some javascript to fill in a dropdown and it works wonderfully. However, when I try to access the value in codebehind to submit the data, the value shows as null. (string strValue = ddlName.SelectedValue;).
[Code]....
I am tring to set the selected value of a dropdown inside a gridview like this:
[Code]....
And I get error:
[Code]....
[Code]....
For some reason when you click the dropdown - "0" is displayed defaulted. It needs to be the first text/value pair from the table. The table is only returning one row at the moment, which is correct, but 0 still defaults.
I want to display the selected value from gridview in a dropdownlist.Here I am not getting the Dropdown from Database as it contains two values.After getting the data user can modify the DDL and change the selection.The data type where the values are saved is declared as Bit.
<asp:Label ID="lblQuery" CssClass="labelbold" runat="server" Text="Query"></asp:Label>
<asp:TextBox ID="txtQuery" runat="server"></asp:TextBox>
<asp:Label ID="lblStatus" CssClass="labelbold" runat="server" Text="Active Status"></asp:Label>
<asp:DropDownList ID="ddlStatus" runat="server">
<asp:ListItem>--Select--</asp:ListItem>
[code]....
Till here it works fine how do I fill the dropdown from database.Eg Active text is coming from Database,so DDL should show Active along with Inactive value.
how i can set the default selected value for a dropdown list. My actual code is:
[Code]....
the GetAvatars() function return a List<MyObject> that contains the avatars informations such as filename and file url. I don't know if i this is correct, anyway i want to display a selectbox that shows the list of the avatars in a folder with a predefinited avatar selected and i would like to show an image near the selectbox with the current selected avatar. How can i do it? I don't find any way to set the default value
Suppose parent dropdown is car (Values are car1, car2, car3)and its child is color(for car1 R Y G B, For car2 R Yand for car3 G B).Now on selection of car2 R and Y will appear and select R, then again made the change on car and select car3 then again select is comiing with G and B and select B.
Now if I select again in car, car1 then the child is populating with the values of car1 but it takes the B as a default value as it was previously selected and also present for car1 too.This case is only happen. on select of child value which is availble for both parent selection.
I am trying to add default item 'All' to my RadComboBox. It is adding at the end and also it doesn't select this default item. What could be the problem?
function OnClientItemsRequested(sender, eventArgs) {
var combo = $find("<%= RadComboBox1.ClientID %>");
var intextput = "All";
var comboItem = new Telerik.Web.UI.RadComboBoxItem();
comboItem.set_text(intextput);
comboItem.set_value("");
combo.trackChanges();
combo.get_items().add(comboItem);
comboItem.select();
combo.commitChanges();
comboItem.scrollIntoView();
}
<telerik:RadComboBox runat="server" ID="RadComboBox1"
EnableLoadOnDemand="true"
OnClientItemsRequested="OnClientItemsRequested">
<WebServiceSettings Method="GetMyData" Path="http://localhost:1606/Service1.svc" />
</telerik:RadComboBox>
I have a column in my .mdf file with the 'uniqueidentifier' datatype. I would like to have it set by SQL Server Express automatically. There are articles on the web that recommend using one of the following commands as the default value:NEWID()NEWSEQUENTIALID()I put this in VS 2010 column properties of my table, in Default Value or Binding. The first command works fine but the second turns out showing an error message 'error validating the default for column xxxx'Any advice on this? I'm I missing much using the first command?
View 6 RepliesI wish to pass values of the selected items into a database and however noticed that the selected item is not what is sent into the database you can see in the snap shot below. during run time the following value is recorded. Where did it all go wrong with the dropdown lists selected item? Counting on your intelligence.
View 3 RepliesI want to select "Algeria" as default selected value in drop down list.I am fetching countrylist from database using handler ( LoadCountryList.ashx ) in JSON data format and binding it to dropdownlist on aspx page using Jquery's $.getJSON precedure given below
[code]...
[Code]....
-- Select A Delivery Date -- Monday - 03/01/10
Monday - 03/08/10
I use in my application 2 areas: Website and Admin. I will put all controllers and views in these areas, not in root application. So I would like to have default route 'Website/Mycontroller/Myaction', not 'Mycontroller/Myaction'. I have changed Global.asax.cs:
[Code]....
to:
[Code]....
but now my application doesn't work when I open website http://xxxxxx.pl.
I'm using MVC 2.0 in an ASP.NET application using NHibernate. I have a working View, Controller and data access layer using NHibernate that is able to display and save an entity with a relationship to another mapped entity: Person -- > Location It's using the HTML helper HTML.DropDownListFor() to display a list of all Locations. The user is able to select one of the Locations from the list, and press save. The default model binder correctly sets the value of the Location on the Person entity being saved. This location is an nhibernate mapped entity, and is instantiated and has the id value that was selected in the dropdown list. Obviously, since the dropdown list that holds locations only has the ids of the locations, the rest of the values for the location are null. This is OK. I am only trying to save the Person with a reference to an existing location.
So, here comes the complication. We have a need to change the relationship between the two entities. Now the Person can have a reference to many locations. Person.Locations will be an IList My question is, how do you get the default model binder to take selections from a multiselect dropdown and populate an IList. I've managed to save collections of entities in the past using the syntax [index].PropertyName as explaing by Phil Haacked .... [URL]
The issue here is that I have only a dropdown list, and it will post back to the modelbinder a repeating key with different values:
Person.Location.Id: 2
Person.Location.Id: 4
Person.Location.Id: 5
This, unfortunately, doesn't work. the Location list keeps coming back Null. Our UI guy is using a slick JQuery pluggin to display the items in the select list, so I'd rather not have to use a different UI.
I have a dropdown list which is bound to a gridview. I would like to add a dropdownlist item which, when selected, will default to displaying ALL gridview rows. So I would like as the first dropdown list item "All Items" and have this as the default.
View 2 RepliesI just wanted to clarify if selectedIndexChanged works on ajax cascading dropdowns as mine doesn't fire. Its in a user control inside an accordion pane. I've read conflicting things about this. All I want to do is check that the last of the 3 cascading dropdowns has been populated an enable a button if so.... but the event never fires when i make a selection on the last dropdown. If it isn't suppose to fire is there a way to raise an event when the selection is made and unmade (as when you change one of the other dropdowns the value resets and the buttton needs to be disabled.
View 3 RepliesI am experimenting with 3 dropdowns bound to 3 different datasources. I want the contents in each dropdown depending on what is selected from the above dropdown and the datasource queries reflect this.
<asp:DropDownList ID="DropDownList_CostCentres" runat="server" Height="16px"
Width="138px" DataSourceID="CostCentreDataSource" DataTextField="CostCentre"
DataValueField="CostCentreID">
</asp:DropDownList>
<asp:SqlDataSource ID="CostCentreDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:corkABCConnectionString %>"
SelectCommand="SELECT [CostCentreID], [CostCentre] FROM [CostCentres]">
</asp:SqlDataSource>
<br />
<br />
<asp:Label ID="Label2" runat="server" Text="Manager:" Font-Bold="True"></asp:Label>
<br />
<asp:DropDownList ID="DropDownList_Managers" runat="server" Height="16px"
Width="138px" DataSourceID="ManagerDataSource" DataTextField="EmployeeName"
DataValueField="EmployeeID">
</asp:DropDownList>
<asp:SqlDataSource ID="ManagerDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:corkABCConnectionString %>"
SelectCommand="SELECT [EmployeeID], [EmployeeName] FROM [Employees] WHERE ([CostCentre] = @CostCentre)">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownList_CostCentres" Name="CostCentre"
PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
However, the second dropdown does not load with the relevant data when I select a value from the first dropdown (stays blank). Must I still provide an event handler and how do I combine this with the sqldatasource?