I have a dropdown list that has a bind on it and I get this error. Why am I getting this error and what can I do to fix it. here is the code for the dropdown I currently have:
[Code]....
I have a dropdownlist in DetailsView to which items are added programmatically during DataBound event. It is working fine in InsertItemTemplate, but in EditItemTemplate i am getting this error "'branchDDL' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value".
. Following is the code:
<asp:TemplateField
HeaderText="Course"
SortExpression="branchID">[code]....
I have a page with some bound DropDownLists (DDLs) for a Call Logging system. The Calls are categorised on three levels for example:
Call: 3069, Category 1: Incident, Category 2: Microsoft Application, Category 3: Word would be used to organise calls for problems with Microsoft Word. On testing the system, I noticed that there was no handling for opening a call if the category had been deleted - say for reorganisation/systems no longer supported whatever. So I set about trying to make the program behave in the following manner:
Check category ID exists in DDL before bindingIt doesn't: set the displayed text of the DDL to Category Name + "(Deleted)"Disable the control to prevent user changingMove on to next control Seemed simple enough, however no matter which way I try and do it I always get the messase ddl_Cat1 has a SelectedValue which is invalid because it does not exist in the list of items. What's really puzzling me is that the exception doesn't seem to be being thrown in the code behind. I've gone through line by line from Page_Init and it never throws and exception. Just when the page loads this appears.
Does anyone know of a reason as to why this wouldn't work? (I've already tried setting the selected value to an existing item, adding a new list item with the value and setting DataSource property to Nothing - in all different combinations.)
I think this needs to be a sticky since this is not solved anywhere that I have been looking... I have been googling this for a while now and came across the answer by shear luck and a simple typo when I was writing the code...
Problem: I have 2 dropdown lists...
ddllist1 and ddlist2... Both are code-behind populated via a sql DB.
they are cascading lists via the ajax control.
I am trying to dynamically populate them with values from a DB for edit reasons.
When I try to get them populated I kept getting the error...
"dropdownlist has a SelectedValue which is invalid because it does not exist in the list of items"
Solution:
1) get the values from the DB or from where ever...
2) create a sql select to get the values from the ddl db
3) set the ID of the first DDL control to cddcontrol1.SelectedValue = id (this is a number)
4) set the value of the DDL to the string value ddlist2.SelectedValue = value (this is a string)
here is the code.
[Code]....
Before this, everything is fine when running the project After I've put "SelectedValue" below to the field,
<asp:TemplateField HeaderText="Interest">
<ItemTemplate>
<asp:DropDownList ID="ddl" OnSelectedIndexChanged="ddl_IndexChanged" SelectedValue='<%# bind("int_id") %>' AutoPostBack="true" runat="server">
</asp:DropDownList>
</ItemTemplate>
[CODE]
I got this error when select a row from a grid view to update
'ddl_ctegOf_Product_update' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.ArgumentOutOfRangeException: 'ddl_ctegOf_Product_update' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value
Source Error:
Line 265: txt_prodID_update.Text = gridTo_updateFrom.SelectedRow.Cells[1].Text;
Line 266: txt_prod_name_update.Text = gridTo_updateFrom.SelectedRow.Cells[2].Text;
Line 267: ddl_ctegOf_Product_update.SelectedValue = gridTo_updateFrom.SelectedRow.Cells[3].Text;
Line 268: txt_cateIn_hardCopy_update.Text = gridTo_updateFrom.SelectedRow.Cells[4].Text.Replace(" ", "");
Line 269: txt_prodID_update.ReadOnly = true;
The code of update:
private void PopulateDropDownList() {
string constr = ConfigurationManager.ConnectionStrings[1].ConnectionString;
using (SqlConnection con = new SqlConnection(constr)) {
using (SqlCommand cmd = new SqlCommand("SELECT CategoryProd_ID,Cate_Pro_Name FROM CategoryOfProduct", con)) {
using (SqlDataAdapter da = new SqlDataAdapter(cmd))
[Code] .....
I want to update the data using vb.net , my webpage has many dropdownlistlist ,
I got an error when update the dropdown field ,
"Dropdownlist error: SelectedValue which is invalid because it does not exist in the list of items."
I have a WebForms page that has two DropDownList controls on it that both contain a range of temperatures from 60-80 degrees, one for heating the other for cooling. They are declared in the .aspx as:
<asp:DropDownList ID="heating" runat="server" />
<asp:DropDownList ID="cooling" runat="server" />
The values for each list are populated in the code-behind using:
for(int i = 60; i <= 80; i++)
{
var listItem = new ListItem(i + " degrees", i.ToString());
heating.Items.Add(listItem);
cooling.Items.Add(listItem);
}
When I try to set the selected value for each DropDownList using the values in an object containing data loaded from the database using:heating.SelectedValue = myHome.avgHeatingTemp.ToString();
cooling.SelectedValue = myHome.avgCoolingTemp.ToString();
The SelectedValue for both lists is set first to the value in myHome.avgHeatingTemp, then to the value in myHome.avgCoolingTemp. Heres what the values are for each variable after each step of the process of setting the SelectedValues:
Initial State
heating.SelectedValue: 60
cooling.SelectedValue: 60 [code]....
The question has probably been raised many times, but I could not find an answer so far.The error is: ropdownlist has SelectedValue which is invalid because it does not exist in the list of items.However, I have debugged the values and the list has the correct list of values which includes the SelectedValue.
View 5 RepliesWe use gridview for showing a data from table.It show fine in certain case like in table field dispostion is data and test but in table we put the string Ineligible Member/Member No Longer Enrolled - Spoke to Target and Wrong Number After Skip Tracing then it gives error. 'DropDownList1' has a SelectedValue which is invalid because it does not exist in the list of items.
The following is snippest my code ,tell me where i am wrong.
[Code]....
I've got a gridview which displays records from a table in SQL Server. Next I've got a details view which displays the details from the selected record. This works fine.
When the user selects a record, which then gets displayed in the details view, I'd like to make it possible for the user to edit the record. I've done searchs for this online, and found lots of responses, but none quite displaying an answer to the question I've got. I'm sure it is a simple thing I've done wrong, but at this point I don't know what it is I've done wrong. I've getting this error,"'DropDownList1' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value".
I've got a SqlDataSource to display the data in the details view. And then I specified another SqlDataSource to use for the dropdownlist control in the details view. I converted the field, in the details view, to a template field and have been replacing it. Here's the SqlDataSource controls definitions:
[Code]....
and here's the info for the details view:
[Code]....
In my asp.net page I have a formview. In the formview's InsertItemTemplate I declare a dropdown list as below:
<td>
<asp:DropDownList ID="DropDownList6" runat="server" text='<%# Bind("District") %>'
DataSourceID="SqlDataSource6" DataTextField="District"
DataValueField="District">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource6" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [District] FROM [tblDistricts]"></asp:SqlDataSource>
</td>
and this works perfectly fine.
In the EditItemtemplate I declare a similar dropdownlist as below to edit district values:
<td>
<asp:DropDownList ID="DropDownList6" runat="server" selectedvalue='<%# Bind("District") %>'
DataSourceID="SqlDataSource6" DataTextField="District"
DataValueField="District">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource6" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [District] FROM [tblDistricts]"></asp:SqlDataSource>
</td>
But whenever I try to edit the data I get the error:
'DropDownList6' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value And the values I am trying to edit were entered into the table by the dropdownlist declared in the insertitemtemplate dropdownlist6 listed above. And no values were deleted from the table.
i have a detailstview and sql datasource I am retrieveing the data so far no problems but afteradding a dropdownlist in edit mode and clicking edit button I get this error"
'DropDownList1' has a SelectedValue which is invalid because it does not exist in the list of items.
Parameter name: value.[Code]....
I am gettng the above error when I am using the Cascading Dropdown list in a DNN application. Everything works 100% until I try to post the form to the db then the error is thrown.I have attached the relevent code
[Code]....
i try to fetch the data from the database and display text in the dropdownlist
i got the error message
'cmbslot' has a selectedvalue which is invalid because it does not exist in the list of items parameter name value cmbslot.Text = obj.getdata(dr["slotcode"].ToString()); //here is my code to retrive the data from the database
How to solver this error? I am getting error for "DropDown"
Error: 'DStation' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value on line: DStation.DataBind();
My .cs code is below
string CommandText = ("select distinct StationName from stations where DeletionDate is null");
DStation.DataSource = DataManager.DatabaseManager.GetOrCreateConnection
(DataManager.DatabaseManager.ConnectionType.MySQL).GetData(CommandText);
DStation.DataTextField = "StationName";
[Code] .....
I have nearly 15 dropdownlist on my web form, and one text box,
any of the selectedIndex change, the total must be reflected to text box,
actually, I have different different value in all dropdownlist, I want average in textbox,
So, I want that,any of the dropdown selectedindex change the average must be reflected in textbox,
I can do it by writing in every dropdown's selectedIndexchanged event,
but, I know that is not correct way,I want dynamically,
I have a ASP.Net webform with a DropDownList control. This Dropdown gets it's values from a states table in an ObjectDatasource. The Dropdown contains states spelled out.
If I try to set the drop down to:
DropDownStates.SelectdValue = "Ohio"
I get an error that the value does not exist in the dropdown even though it does exist. But if I pad the value with the correct number of spaces to the right, it works like so:
DropDownStates.SelectdValue = "Ohio "
or
DropDownStates.SelectdValue = "Michigan "
How can I either define the dropdown without trailing spaces in the value of the dropwdown or set the SelectedValue with adding trailing spaces?
In SQL, you can create a query and use a "IN".. Select * from tOffices where OfficeID in ('1', '2', '3'). Is it possible, in my vb.net code behind to check if a selected value is "in" a list of values like this?
If ArrangementID.SelectedValue in ("6","7","99") then...
I have a DropDownList which is databound and pulls back the values from SQL.
I want to check to see if that record contains an assigned value, if not insert a new listItem.
Here's what I have:
[Code]....
I have a quick question on my ddl. I have a search page that searches based on the ddl. Once the button is clicked. the result of the search shows on the gridview.Which all works well.Now the problem i am having is that. On my gridview i have a select button that brings out another ddl on an update panel based on the first ddl. When i do this... it goes back to the first record on the ddl and shows a wrong result.. Basically the new ddl is supposed to change on "selectedindexchanged" handler of that gridview which works fine but the selectedvalue is just going back to the first one.
View 11 Replieshow do I set the SelectedIndex of a DropDownList based on the SelectedValue
View 8 Replies[Code]....
here's the code I use after the selectedindexchange
[Code]....
i am using one dropdownlist for showing deptname from DB using cascadingdropdownlist and web services.i want when i select dropdown value it should be display in textbox.but don't know how to do this.tell me what is c# code for this.
View 14 RepliesMy page has a gridview, and the gridview has a TemplateField called "Acciones" (Actions). The column Acciones has a ImageButton with CommandName "Select" and CommandArgument "Tutor". Thus, the GridView has controlled event "SelectedIndexChanged". The idea is that in GV_SelectedIndexChanged, I must to set DropDownList's SelectedValue property. But, the value seted in this function don't affect the rendered dropdownlist. The debugger talk's that the value is correctly seted, but the visual result don't.
View 4 Replies