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I have the following string which is a list of urls. How do I get this to work so the url shows for the selection and also is the value?
allLinks = newAllLinks
Me.DropDownList1.DataTextField = "Link"
Me.DropDownList1.DataValueField = "LinkURL"
Me.DropDownList1.Items.Insert(0, New ListItem(" - Select - ", 0))
Me.DropDownList1.DataSource = allLinks
ArgumentNullException: Value cannot be null.Parameter name: container] System.Web.UI.DataBinder.GetPropertyValue(Object container, String propName) +121 System.Web.UI.DataBinder.GetPropertyValue(Object container, String propName, String format) +8 System
Hello. I am working through Scott Mitchell's ASP.Net in 24 hours book. I am finishing the photo album project.
I have a GridView that retrieves a list of uploaded photo rows for the logged-in user.The GridView is for editing and deleting rows.
The photo Category field in the Gridview is a dropdown list. The text entry field was deleted after converting this field to a Template.
Like the uploaded photos, these Categories are user-specific. They are created in another web page.
Users also have the option to select "none" for the category when they upload an image.
For the GridView: The Category ID field's ItemTemplate and EditItemTemplate both have a " - None - " choice added to them.
I am getting this error:
'pictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value
Note: The ID for the ItemTemplate for that dropdown list is the ID listed above in the error: "pictureReadOnlyCategories".
Am I missing some step in this process of changing a GridViews text field to a dropdown that can be used for editing? I went through the book's instructions three times.
Here is my code for the dropdown list and a screenshot of the Design
2 Questions. I am trying out Data Entities in VWD 2010 Express. I have a parent (Customers) and child (Orders) table. Customers table has FirstName, LastName and Email columns.
Q1. When I view/edit/insert an Order, it shows the customer's first name in dropdown list whereas I want the full name. How can this be done?
Q2. How can I change the default behavior of PK/FK relationship so that customer's Email is displayed instead of Name?
Any help will be much appreciated.
Edited by Nancy Michell
MSDN Magazine October 2001
I am running WSS 3.0 with other workflows which are functioning correctly.
I created a new workflow in Visual Studio 2008 and was able to successfully run it in my dev environment.
I attached the workflow to a task list in my dev environment and was able to manually start the workflow by using the drop down workflow option and using the menus to manually start it.
I installed this workflow in our production environment and attached it to the task list (which had a SPD workflow attached to it which stopped working about a month ago).
I made sure that the option to manually start the workflow was checked.
When I tried to manually start the workflow, (hover mouse over title, drop down) there isn’t a workflow option.
The workflow also will not start automatically when a task is changed.
I attached this same workflow to a different task list in production and get the option to start it.
I have tried creating a small workflow in SPD 2007 and attaching it to the task list.
It shows that it is attached, when I look at the workflows that are attached to the task list, but I still don’t get the option to manually start it.
I have checked my security and I have fu
i created a dataview for a user table to insert new records. now i have to use a dropdown list that get data from another table. to insert in my user table. in the user table only the code is stored. but i need to get that code description that is in another
table in my dropdownlist to choose from in my dataview.
how can i do this in sharepiont designer2007?
I have 1 dropdown in my sharepoint list with other columns. If dropdown value equal to 'xyz' i need to display some other controls, otherwise these controls should be hidden.
I have many controls on my form, but in particular, I have 2 dropdownlists. 1 dropdown list has 2 values, and each value controls what the second dropdownlist displays. This is an edititemtemplate and both dropdowns have the selecteditem set via '<%# Bind("fieldname") #>' on page load.
THe problem is, if I change the value of the first dropdown, it errors out because the second dropdwon has a bound value that is no longer acceptable.
Can I cancel the bind of the second control, if the the first one is changed? I would like to cancel the bind, and update the values by using a different datasource depending on the value of the first dropdown or hardcode the new values.
If Dropdown1 has a value of "A" for example Dropdown 2 Shows Values "1", "2", "3"
If Dropdown 1 has a value of "B" , Dropdown2 Shows Values "4", "5", "6".
It binds fine initially, but if I change Dropdown1 from A to B, I want Dropdown2 to show the new values, maybe with a default of "Select an Item" and not error out b/c it's attempts to bind a value of 1, 2, or 3.
Hope this makes sence, b/c I'm