Displaying Dropdownlist When It Has Some Value Else Make It Invisible
Jul 8, 2010
I have a dropdown list named "ddlCustomerDatabase' . Now this dropdownlist is associated with a sqldatasource. Now what I want is when there are no values in the dropdownlist ddlCustomerDatabase ie no row in sqldatasource asssociated with it, I want to make it invisible that is ddlCustomerDatabase.visible = False else it should be visible.
I have used IF ddlCustomerDatabase.text Is Nothing THEN,....used IF ddlCustomerDatabase IS Nothing THEN......used IF ddlCustomerDatabase.selectedItem, selectedValue, items.count THEN.. But to no avail.
So what should be the proper logic for achieving my simple goal, to display the dropedown list when it has something else to just make it invisible when it is empty.
I would like to know how can I easily customize my detailsView that when it is in Create mode ID field should be invisible I can rememebr that it was sth like visible = <% code here ... (IsCreated ??) here is an example:
I am trying to find a way to make Object1 invisible in code behind. I succed to do it fora1 but not for the Object1 even that I put the runat="server" tag to the Object1 ?
How do I make a column invisible in a gridview? I tried to use this:
dataGridView.Columns(0).Visible = False
But its getting an error "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index". How can I do this?
how can i make using javascript a table row visible or invisible when checkbox is checked? also i need table row runat="server" so when postback page it will not loose table row state.
I build some html in my page's code behind and set a radio button's text property to this string of html. The html contains a link, PDF Preview.
The first time my page posts, I want to display this html and subsquent times I don't. But there are data in the html that I need, so I want to still build it and have it available but not have the user see it. None of these worked; it was always still displayed:
I was given some code a while ago which hid certain nodes from the TreeView but allowed them to appear in the breadcrumb.
Here it is:
[Code]....
I later needed do the same thing but, by now, was using C# instead of VB.
I've tried to translate the VB into C# but the code doesn't work. It doesn't report any design time or run time errors; it just doesn't work (the nodes ARE visible in the TreeView.
I have a menus in master page.I took treeview to display the menus.But i want to make visible and invisible of some main menus according to my requirement . when i login into the page form.aspx menus will appear. But when i click the submit button then those menus will disappear and some more new menus will appear.
Getting familiar with ajax tabs...watched Joe's video. Am building simple wizard with first tab visible, others invisible until "next" is clicked. I know I need an onclientclick event but am very elementary with Javascript and .Net doesn't prompt javascript.
I have a formview which contains a question and 5 checkboxes with answers alongside. Some of the questions are true/false so I want to make checkboxes 3, 4, and 5 invisible.
Should this be handled in code-behind? (I don't see any ready-made events for paging through the formview) or is there a way to test data and change the visible property in;
I m getting 9 columns from database in a dataset but I want to diplay only 4 columns in datagrid. Remaining 5 columns values, I want to display in the textboxes below datagird.
I tried it making column invisible. If I make it invisible, I m not getting any value for that column to display in the textbox.
I have a panel on a form with textboxes on. How can I make this invisible while editing the form in 2008express? I want to add another panel on top and be able to add stuff to it without the other getting in the way.
I bound the gridview having some fields(ID, StudName, City) and Display Button. When I click on the Disply button I approve the student and updation will happen.
Bu what happen the column ID is not in the sequence. Sometime it displays 1,2,3,4,5,6 ... next time it will display 7,8,9,10,11.... I want a sequence for the column ID. For that I used :
<%# Container.DataItemIndex+1 %>
and it is working fine.. But again I realize that these numbers are generating at runtime and i can't refer to that student. Also I don't want to display ID column on the grid view but I want to use on runtime generated column. [ i am using RowCommand for ID column ] How it is possible?
I have a Save button in my page. When user clicks it, the program will do some checking. If it passes the test, the record will be saved. If not, it will fire another button's onclick event. The 2nd button has been set with both height and width = 0 and it has an extender AJAX ModalPopup.
Here is the code for the 1st button (the visible Save button):
[Code]....
Problem is that setting height and width = 0 for the 2nd button can make the button invisible in IE. But it shows a very small button in Chrome. If I set the 2nd button to invisible, it simply won't function at all.
i have just started making an asp document using c# codes
[Code]....
right now i have a droplistbox in my design.. when i select others, a text box will appear and allow user to enter the new email address. however, i would like the text box to appear invisible to the user when he enters this asp page initially. how do i go about doing it?
just another question.. Supposed that if the user chooses "Others" and entered a new email address in the textbox and i want him to be able to see this new email address as an option in the future when he runs this asp file again. is it possible not to set up a SQL server for my application? or can i just use some variables to set as that?
I have some tables in my asp.net mvc application for layout purposes. Even though I usually use divs for most things, in some cases tables make most sense because they already have exactly the layout I'm after in these cases.
The only problem is, as far as I know the borders are supposed to be invisible unless you specify a width and style for the borders. But they aren't... They are rather vague, yes, but there are still light blue borders around each cell. What is that and how do I get rid of them? (Funny thing is I don't remember having seen this before when I used tables, which was a while ago).
I also tried specifically setting the border to 0px on both table and td, but that didn't work either...
I have a page with 2 dropdownlists on it. One of them shows a value when the page is opened, the other doesn't. Why? I would like for them both not to be showing anything when the form opens. The coding for them appears to be identical.
