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 RepliesI have two listboxes on one panel. Box on the left has names from the database, there are two buttons. High light a name and click button1 and the name move from listbox1 to listbox2. How do you do that?
View 2 RepliesI am having a lot of trouble with a seemingly simple thing. In an ASP.NET webform I have two ListBoxes, with Add and Remove buttons in between. The user can select items in one ListBox and using the buttons, swap them around. I do this on the clientside using javascript. I then also have a SAVE button, which I want to process on the server side when the user is happy with their list.
Problems : First I was getting the following problem when I clicked SAVE :
Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. I read that one of the methods to get around this was to put my ListBoxes into an UpdatePanel, which I did, and I am getting further.
However, now the event handler for the button's Click event is not being run if the user has used the clientside javascript to alter the contents of the Listboxes. If the user has not altered the contents of the listboxes, the handler does execute.
[code]....
I am using 2 listview. One is attached to the datasource and other is not. So in order to show the headers, I filled in the emptydatatemplate.I have a command on the 1st listview "Add", on clicking of which I should remove the item from that listview and add it to the 2nd listview.the datasource of the 1st listview is a stronglytyped list.Kindly help me, how to achive the moving of items from one listview to another and what should be the setting of the 2nd listview to show the headers.
View 1 RepliesI have a datagrid that has photos and a description of the individual in the photo. I have a procedure that works and if I execute it with the correct parameters it changes the rows in the table. I have a datagrid with two image buttons, MoveUp and MoveDown. I just want to be able to reorder the photos when needed.
In my proc called "MoveMember" I have these parameters that are passed in. The column that gets swapped in my table is the "OrderBy" column, they are just numeric numbers 1,2,3,4 etc.
So in my procedure 2 and 3 can be interchanged.
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 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 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)
I am developing an mvc 2 application.In my form i have a listbox. Based on selecting the items in the listbox a vertical tab is created.the tabs in the vertical tabs are created corresponding to each item selected in the listbox.after the creation of the vetical tabs each vertical tab will be containing a listbox.here the user can select the list items.now my problem is that i want to know which all items in each listbox in each tab is been selected .some code:
[Code]....
I have two drop down listboxes in a GridView control. I want to populate the second drop down listbox based upon the value that was selected in the first drop down listbox. Currently I have not been able to populate the second drop down listbox. I am attempting to do this in the C# code file. See line 26 below.
// Here is some of my Aspx code:
this first item template populates the first drop down listbox:
<ItemTemplate>
<asp:DropDownList ID="ddlFirstDropDown" runat="server"
DataSourceID="SqlDataSourceBodyBuild"
DataTextField="BodyPart" DataValueField="EmployeeId" AppendDataBoundItems="True"
Width="110px" AutoPostBack="True"
onselectedindexchanged="ddlFirstDropDown_SelectedIndexChanged">
[Code]...
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 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 have two ListBoxes.I want to movie items from ListBox1 to Listbox2 using jquery.
I want to save ListBox2 items in Xml file.
But i am unable to get ListBox2 items after moving from ListBox2.
I searched for this problem.Solutions is Use HiddenField for getting server side.
I am new to Dot net.So Explain with one simple example.
I 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 RepliesI 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()
how to reorder a datadrid, by moving one row up or down.
View 1 Replieswe need to move Gridview rows up or down by selecting the same.
we have two buttons as up and down.
After selecting a row(index(X)) then if we click up the row(index(X-1)) will come down and row we selected will move up.
same case with the down button ,After selecting a row(index(X)) then if we click up the row(index(X+1)) will come up and row we selected will move down.
all these changes has to reflect on database(order of records stored) also.
I want to render something like this (with ASP.Net Controls in the codebehind):
<ul>
<li class="first"><h1>This is a caption</h1></li>
<li><a href="#" title="" target="_self">Foo</a></li>
<li><a href="#" title="" target="_self">Foo1</a></li>
<li><a href="#" title="" target="_self">Foo2</a></li>
<li><a href="#" title="" target="_self">Foo3</a></li>
<li><a href="#" title="" target="_self">Foo4</a></li>
</ul>
<ul>
<li class="first"><h1>This is a another caption</h1></li>
<li><a href="#" title="" target="_self">Foo5</a></li>
<li><a href="#" title="" target="_self">Foo6</a></li>
<li><a href="#" title="" target="_self">Foo7</a></li>
<li><a href="#" title="" target="_self">Foo8</a></li>
<li><a href="#" title="" target="_self">Foo9</a></li>
<li><a href="#" title="" target="_self">Foo10</a></li>
<li><a href="#" title="" target="_self">Foo11</a></li>
</ul>
The amount of li elements that will be rendered into each ul is determined at runtime. Each link in a li belongs to into a specific ul (the one containing a specific caption. Imagine this as a kind of a treeview with nodes and subnodes) During the bind Event I need access to an ASP:HyperLink that will be rendered into the a-element. Which databound ASP.Net control should I pick for this? Looks like a repeater in a repeater, which should make the databinding process ugly. I'm thinking about creating this HTML-Output with StringWriters myself.
I'm trying to build a small back-end page for adding business references to 'portfolio' front-end page.
I chose the GridView control for displaying current items, and am currently working on positioning code(display order) with button fields up/down.
The up/down button code works fine until the GridView is sorted by clicking the header field, then it breaks.
Here is the relevant code:
[Code]....
I am trying to get an idea on the best way to do the following:
[1]I have a list of object type (my_object_type), one of the my_object_type members is called SortOrder, which corresponds to the location within the list.
example of List<my_object_type>
SortOrder=1 | item2="something" | item3="something"
SortOrder=2 | item2="something" | item3="something"
SortOrder=3 | item2="something" | item3="something"
SortOrder=4 | item2="something" | item3="something"
SortOrder=5 | item2="something" | item3="something"
SortOrder=6 | item2="something" | item3="something"
[2]I bind this List<my_object_type> to a GridView, that looks something like the following when displayed:
[1]|[something]|[something]|MOVE TO [DropDownList 1-6]|[Move Button]
[2]|[something]|[something]|MOVE TO [DropDownList 1-6]|[Move Button]
[3]|[something]|[something]|MOVE TO [DropDownList 1-6]|[Move Button]
[4]|[something]|[something]|MOVE TO [DropDownList 1-6]|[Move Button]
[5]|[something]|[something]|MOVE TO [DropDownList 1-6]|[Move Button]
[6]|[something]|[something]|MOVE TO [DropDownList 1-6]|[Move Button]
[3]When I select a drop down list item from column 4 of the GridView and then select the MOVE BUTTON, I would like to be able to move an object to a specific NEW location - basically reorder the List<my_object_type> and then BIND the new List Order back to the GridView.... (example: current list item #3 -> select #5 from drop down list -> press Move Button ||| then BIND changes back to the GridView)
Question: any recommendations about the best way of doing this within the gridview, etc...?
i have a method to check if a row contains a certain time. the row is databound to the grid. how do i refrence this row?
row in asp.net
<asp:BoundField DataField="Time" HeaderText="Time"
SortExpression="Time" Visible="False" />
i thought findControl would work but i didnt get much luck, something like string previous = ((TextBox)r.FindControl("Time")).Text;
I am using a "Detail View" to edit the data in my "Customer" table. The fields are "CompanyName", "ContactPerson", "StreetAddress", and "City". If I type data into the first field ("CompanyName") and then press the "tab" key, control moves to the second field "ContactPerson". However, if I type data into the first field ("CompanyName") and then press the "Enter" key, instead of control moving to the second field ("ContactPerson") the program closes the form.
Is there someway that I can control the action of the "Enter" key so that this will not happen?
Also, is there any way that I can have control move from the first field ("CompanyName") to a field other than the seconc field ("ContactPerson") if the content of the "CompanyName" field contains the value "Internal"?
i already have a DataList, and i get any information from the rows i need by adding code such as:
[code]....
Well what i am doing there is using the values from the items that the DataList has obtained from the rows, now, what i need to do is EXACTLY the same, but for the FormView, i realised that this code does not work for the FormView, but only DataList control.
give me the code for doing exactly as shown, but for the FormView control.