I have a databound dropdownlist hooked up to a table and the query has the returned items show up in order. I also have some default items that are _DataBound like so:
[Code]....
What I'd like to do is add some more items, but have these new items show up in order with the other items displayed from the query. How do I accomplish this?
I am placing a dropdown list in the footer of a DataGrid like this:
[Code]....
In my code behind file, in the myDDL_OnLoad event handler, I call to the database, populate a SqlDataReader, and set the DDL's datasource to that datareader. I define what data columns should be used for the DataValueField and DataTextField of the dropdownlist. Then I call the DropDownList's DataBind() method. Everything works without error. But, when the dropdownlist is displayed, it has blank lines in it.
By that, I mean if 8 records are loaded into the dropdownlist, it will expand to a size appropriate for 8 rows but, it will be empty. there is no text in it.
Has anyone seen this type of behavior before? This dropdownlist is in the footer of a dynamically loaded ajax update panel so, it is difficult to see the source code to see what values are in the html element rendered to represent the dropdown.
On the home page as I on work, I have a dropdown list which act as a menu. But in Internet Explorer can not figure out how to display all text in my dropdown list How it looks in Internet Explorer
How it looks in firefox, chrome and opera Do you know how to do so that Internet Explorer also displays all the text in my dropdown list like in firefox and the other
I'm using a text book to teach myself ASP.NET 3.5. I'm using Visual Web Developer 2008 express to create my pages. At this point in my text, the author has me drag a DropDownList control to the Web page and then tells me to go to the Properies window and look at the Items property. I don't see an Items property. I've doublechecked that I'm on my DropDownList control, but I see no Items property. Is this a bug in VWD, an error in the book, or just plain old User error?
I'd be willing to hard-code the property in the source window, but I don't know the syntax. I tried
items="Vanilla, Chocolate" but nothing appears in the list when I view the screen.
So I have a ListView (assignmentsListView) in an UpdatePanel, being filtered by a DropDownList in the same UpdatePanel. The DropDownList has a list of persons in it and uses autopostback, and the ListView shows the tasks those persons are assigned to.
I am trying to use code similar to this:
[code]....
When I first load the page, the DropDownList shows the first person in the list, and the ListView correctly shows that persons tasks.
If I then select a person who I know has zero tasks, I get an error at the RegisterPostBackControl() method, saying the passed-in control cannot be null.
When debugging, at the RegisterPostBackControl method, it shows that the ListView Items collection has >0 elements in it (the number of elements matches the person selected before the current person).
I have a simple problem. What i wish to do is to read the data bound item [Code]....
and if the output = 0 then rather than display the 0 I would like to display a message such as Not Available.
Can anyone provide a solution?
I have two databound listboxes. I am able to move items between them using add and remove buttons using for loops. However I have no idea how to commit the items back to the db when the user finally clicks on the Save button on the form.
View 5 Replies I have a DDL bound to a sqlDataSource, and I want to insert an item in the first position. I tried using this code in the onDatabound event:
Protected Sub ddl_onDataBound(ByVal sender As Object, ByVal e As EventArgs) Handles ddl.DataBound
ddl.Items.Insert(0, "None")
End Sub
But when I load the page, the item "None" is inserted twice at the beginning of the DDL? So I see something like:
None
None
item1
item2
Do I need to put the items.insert somewhere else, like on the pageLoad, to avoid it being executed twice, or am I doing something really wrong?
I have a checkboxlist that gets data from my database and displays a list of items.
Item 1
Item 2
Item 3
I know how to get the chosen items, but i'm not sure how to get them in the order that they were chosen. This is my code to get the selected items.
[Code]....
So if I choose Item 3, Item 2, and then Item 1, when I display them on a label, the order is always Item 1, Items 2, Item 3. How can i preserve the order of the chosen items?
I want to created a messaging system and to display the messages. I want to use a gridview. My problem is how can I display the new messages in BOLD rows and the readed messages in normal text.
View 7 Replieshave an annoying problem. i'm trying to update single items in a databound listview. but when i click the update button it gives me the cannot insert NULL value. it doesnt seem to read anything from the textboxes which i have databound from the database. even though text is clearly shown...
i have setup my update statement and parameters, it uses the Update command name and ItemUpdating event. i catch the data from the textboxes by using e.ItemIndex and use the text assigned to the parameters in a SqlCommand.
The thing i'm aiming for too is that when an item is updated it stays on the page where the item was updated, (i was using response.redirect before but it went against my aim since the whole page reloaded)
Is it possible to display the items in a dropdown list not by the order of insertion?
i want to display the orders alphabetically.
I have a DropDownList inside the EditTemplateItem (if the user clicks edit) in a GridView.The DropDownList receives all available rows from the database. My problem is,if the user clicks Edit in the GridView to edit a row and opens the DropDownList Box the original item is not selected but the first one.That means the items are sorted. Have someone an idea how I can solve this issue that the right item / the original is selected if I change to edit mode of the grid view?
View 2 RepliesI have a GridView with a load of data in, there is an ID associated to the data that I would not like to be visible to the users. All worked fine when all the cells were visible, but as soon as I change the ID DataBound column to false, when I try to access the item in code I get "" instead of it's actual value (that worked perfectly when it was visible).
View 2 Repliesprotected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrict();
}
[Code]......
here when i click on ALL item from ddlzone1 it just "ALL" item in ddldistrict
i want when i select "ALL" item from ddlzone1 in ddldistrict14 show all data from database
I have a ListBox which is bound to a list of data items.
Now I want the user to be able to filter the items shown in the ListBox based on the search expression typed in the TextBox. For each character typed in the TextBox, the ListBox items should change to show only the items matching the search expression.
How do you avoid duplicate bound items in this scenario: There's a databound control on a page (a DropDownList in this case, though I don't think it matters). It has AppendDataBoundItems set to "true". Somewhere in the code, a DataSource is set and DataBind is called. So this control is bound explicitly. You have a bunch of other things to bind on the page, so you call Page.DataBind.
Your databound control now has duplicate items in it. It was (1) bound explicitly, then (2) Page.DataBind bound it again. Since AppendDataBoundItems was true, the second bind appends to the first, and you end up with double the items. A couple limitations: The explicit call to DataBind on the control is done through some centralized code, and would be painful to change. i really need to bind the rest of the page in aggregate (via Page.Databind()) because there's too many other databound elements to do it individually without writing a ton of individual calls.
I need a method like... Page.DataBindExceptIfTheyHaveAlreadyBeenBoundDuh()
Let's say I have DropDownList ddlRooms bound to the datasource which returns list of available rooms from table tblRooms. On the other hand I have users, and their info is stored in table tblUsers. Using FormView frmUsers can be inserted, edited and updated... frmUsers is be bound to separate datasource. To each user, I would ilke to assign a room, so the value of txtUserRoom will be populated based on the selected value from ddlRooms. How can i pass the selected value of ddlRooms to txtUserRoom while keeping txtUserRoom stil bound to user datasource? Do I need two separate fileds or can i just put value of ddlRooms into datasource user?
View 3 Repliescan change the order in dropdownlist
DateTime NextMont = month.AddMonths(i);
I am trying to select a value, automatically, out of ddlCounsellorNameb by selecting a value in ddlCounsellorID. I've been getting a databinding error whenever the first dropdownlist posts back. How do I do about this without getting an error?
[Code]....
I have been trying to get the Re-order list to work using the following tutorial (but in VB instead): [URL] The list is displaying properly, but none of the items are moveable. My code is pretty much exactly the same as the tutorial.
View 1 RepliesI am developing Online Food Ordering web application[asp.net+Sql]. I want to show automatic popup at admin side when user order for food. (Like fb notification). When user place order that time admin should get automatic popup.
View 1 RepliesI want to accomplish is to check the value of a field against the values within a databound dropdownlist.
[Code]....
i have difficulty to show the validation error message next to textbox. fyi, the error message by default are showing in validation summary.
how to configure the validation error message in order to show next to (on right) a textbox. eg. in index.aspx or edit.aspx.
I want to implement the following page by Asp.net version 4.0 and ajax but I want to have loading by order like loading item 1 and 2 and so on. I have container or web part but mostly container like simple asp.net panel. how I can implement it ? I used updatepanel and update progress but it doesn't work that I have expected before.
View 3 Replies
