C# - Force .net Dropdownlist To Expand?
Aug 27, 2010
I have an ASP.NET data bound dropdownlist which is populated based on the contents of a textbox. After it is populated I would like to expand the dropdownlist automatically, so that the user realizes that a choice needs to be made and doesn't need to click on the dropdown to expand it. There doesn't seem to be a property or method do do this.
EDIT: After trying out Ed B's example, I am still stuck. The id of my ddl is 'ctl00_ContentPlaceHolder9_ddlContact'. If I put the following in the onclick event of a button, it works fine, the dropdown expands nicely:
document.getElementById('ctl00_ContentPlaceHolder9_ddlContact').size=10;
However, the following code in the Databound event of the ddl shows the alert but doesn't expand the dropdown:
string script = "<SCRIPT LANGUAGE='JavaScript'> ";
script += "alert('expanding');document.getElementById('ctl00_ContentPlaceHolder9_ddlContact').size=10 </SCRIPT>";
ClientScript.RegisterClientScriptBlock(GetType(), "Dropdown", script);
View 3 Replies
Similar Messages:
Mar 1, 2011
I would like to expand dropdownlist after onfocus postback. There is some code that runs when OnFocus is fired off then it needs to stay expanded so the user can select an item from dropdownlist. Currently it expands and contracts real fast when user clicks the dropdownlist, then the user has to click it again to select an item.
View 2 Replies
Feb 1, 2010
I have a dropdownlist that I already have manually databinding. I currently get the data, loop through each item, and depending on values in the item, change the css for the individual ListItem.
For example:
foreach (Site mySite in myList)
{
ListItem li = new ListItem(mySite.FullAddress, mySite.Id.ToString());
if (mySite.DisabledFlg)
{
li.Attributes.Add("style", "color:#999");
}
this.Items.Add(li);
}
I'm trying to force the text in the listitem to break at certain points. The string that I retrieve from the datasource currently has a " " everywhere where there should be a line break. This works fine for display in a normal textbox, but it doesn't work on the listitem. I've tried replacing the " " with a "<br>" but when I do that, it just displays <br> in the listem along with the rest of the text. I've tried wrapping the listitem contents in a "div" with a width attribute, but it also just display the "div" tag literally in the ListItem text. I've also tried adding the following to the ListItem attributes at bind:
li.Attributes.Add("width", "100px");
But that hasn't resulted in any change either.
I've seen custom drop down list controls that have multiline listitems in them.
View 2 Replies
Mar 2, 2014
I have 2 Dropdown(say "DD1", "DD2") and 1 Listbox(say "LB") in my web form,value of the 3 controls depend on each other.
"LB1" is dependent on "DD2" value, "DD2" is dependent on "DD1" value.
I want that if user selects "LB1" without selecting "DD2", it should give a message that "please select DD2 first"similarly if user Selects "DD2" without selecting "DD1", it should give a msg that "Please select DD1 first" ,using ASP.NET C.
View 1 Replies
May 14, 2010
I am currently writing an MVC app and currently only have one master page. I would like to add a dropdownlist to my main page and on selection of this to be able to switch the master page used. Has anyone acheived this before. I am unsure of how to force the onchange in the dropdown to fire some code behind in my controller.
View 3 Replies
May 4, 2010
I have a FormView with an EditTemplate.And the EditTemplate contains an ascx control:
<asp:FormView
ID="fvTicketUpdate"
runat="server"
[code]...
The contents of the ascx control has TextBox and DropDownList controls binding to the results of the FormView's ObjectDataSource through Text='<%# Eval("field1") %>'and SelectedValue='<%# Eval("field2") %>'.This works fine and I have been building all of my front end pieces like this as <asp:Panels> rendering as FieldSets that go 100% across the screen.And we call these areas "strips" accross the screen.But now I've run into a problem.One TextBox and one DropDown bind fine to a Ticket Object.But the DropDownList that works has its <asp:ListItems> hardcoded before hand.Now I have DropDownList that gets populated through a WebService in the ascx's
code behind like this:
public partial class UserControls_FormControls_PntipUpdtFaaInfo :
System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
[code]...
The Problem I think is the FormView is trying to do its Bind to the objectDataSource before its child ascx control is loaded in the Edit Template.And I am getting this error:
Databinding methods such as Eval(),XPath(),and Bind() can only be used in the context of a databound control.Meaning that the control must already be databound to bind the selectedValue to a Property of the TicketObject.Is there an easy way to force the order of loading to make the PntipUpdtFaaInfo control load and have its Page_Load execute and bind ddlEquip before the FormView does its first dataBind and executing its Evals?Otherwise I have to take out the eval on the ddlEquip SelectedValue attribute and go to the Parent Page and hack and force everything to happen when it needs to.This layout has worked out well for me.All of the ascx area strips across the screen share the same Validation Summary for example.It allows me to think about one section at a time and the Properties to the Business Obect and CRUD methods as I go.But this is a big brick wall I've hit.
View 1 Replies
Mar 10, 2010
in the first column of the grid view having + symbol so that i can expand the grid to see subgrid.. but now problem is I need to have a button in the bottom of the grid to expand all the gridview subgrid at a time.
View 1 Replies
Mar 22, 2010
I am using Tree view to display Categories & SubCategories under it. It's working fine. to create a Tree View I had used,
http://aspalliance.com/732.
Problem is that I want my TreeView to be expanded. How can one do that? Moreover, From another page when I click a Product, I want that in treeView that Category(under which Product falls), should be expanded & node(ie selected Product) should be highlighted.
View 6 Replies
Mar 10, 2010
[URL]
the above link example i have the same grid with subgrid I need to place the button under the Gridview to expand all the subgrid at a time..
View 3 Replies
Apr 17, 2012
how I can set a default view for a treeview. meaning I have a treeview created and has some data in it. when the page first loads it just shows the treeview. I need to actually display the very first node's data. So i have the treeview, with a parent node and 3 child nodes. I need to dynamically get the the parentnode and then get the first child node and display that data without clicking. I could just hard code the path in, but since this is still in development more nodes will be added and there for the order could change.
View 2 Replies
Jun 22, 2010
What I am acheiving is a simple treeview which will have a tree structure
dir1
-- xx
dir2
Simple stuff !. Here is the code
TreeNode tree1 = new TreeNode("dir1", "", "", "dir1", "");
tree.Nodes.Add(tree1);
TreeNode node = new TreeNode("xx", "xx");
tree1.ChildNodes.Add(node);
TreeNode tree2 = new TreeNode("dir2", "", "", "dir2", "");
tree.Nodes.Add(tree2);
Now I want to do is collapse all the tree and find a particular node e.g dir1xx
I have put the code
tree.CollapseAll();
tree.FindNode("dir1").Select(); <-- falls over
tree.FindNode("dir1").Expand();
tree.FindNode("dir1/xx").Select();
tree.FindNode("dir1/xx").Expand();
but it falls over on the 2nd line with object not set
View 1 Replies
Feb 22, 2010
in my asp.net treeview if i click one parent node then it should be extended if i click again on that node it should be collapsed in treeview...
is any javascript availabe for this? or any code in selected node changed?
View 1 Replies
Dec 31, 2010
I have this accordion control but it not expand
[Code]....
[Code]....
View 3 Replies
Apr 21, 2010
using vb.net/asp.net 2005:
After adding a new record using a stored procedure I want to expand the accordian which is inside an inner grid so that the user can see what was just added, I'm rebinding the gridview which works but when I set the SelectedIndex = 0 that does not expand the accordian. Do I need to do this in Javascript? My vb.net codebehind that I'm trying (but not working) is here:
[Code]....
View 9 Replies
Mar 8, 2011
I want my textbox to expand, say, from height=20 to 40px when I clicked on the textbox or when it's focused. Below are my codes.
[Code]....
CSS code:
[Code]....
I also wanted to allow the user to manually drag/adjust the textbox's height as he/she desires.
View 12 Replies
Jul 26, 2010
I have a updatepanel and div within it. I want to collapse and expand the panel/div on image button click. I tried 3 options
1. Collapsible panel: This is not smooth it closes and opens in intervals bit by bit
2. Accordian: I tried using it in a simple example which worked fine but it didnt work in the project. In the div there are many nested divs and updatepanels. is this a reason that it didnt work in my project?
3. Giving a image button and writing code in cs file on button clickevent to display:none/block the div.
Option 3 worked, but on click of the image button, the button shifts or the background panel shifts the position, hence the panel and image button are not inline(not in the same position as before)
Also, since we are using ASP.NET 3.5 and Ajax, option 1 or 2 looks good but they are not working as expected.
View 1 Replies
Mar 22, 2010
I'm new to the Ajax Control Tool Kits and I was trying to use the accordion control which is cool according to
its sample.
I followed this video tutorials, however after I created the simple demo, the accordion control doesn't collapse or expand. It just didn't respond to my clicks.
Following is my code and I've trimmed is as simple as possible.
[Code]....
View 9 Replies
Aug 2, 2010
I added it and when the user clicks on the panel(working as header) then the collapsing/expanding of another panel(working for displaying the content) works great.All of it happens in the client side;i.e;no need of server side code.But now i want to change it a bit.All i want to do is when the mouse curser moves in/out of the panel(which is the header) then the panel(working for displaying the content) should automatically expand/collapse respectively.
View 5 Replies
Aug 29, 2010
I have four collapsile panels. Now i want there sould be two link buttons expand all and collapse all. Now whenever user will click on expand all, all the collapsible panels should expand at the same time. Similarly, whenever user will click on collapse all, all the panels should be collapsed.
View 17 Replies
Mar 28, 2011
Im building ul li list dynamically on the serverside code. How can I determine which node should be expanded when page is loaded ?
Im using plugin: [URL]
View 1 Replies
Feb 11, 2010
I am trying to use a treeview control in my application. From the begining I had one parentnode and several childnodes for each parentnode. I wanted to be able to close an opened node when I click on a new one and I maneged that with OnTreeNodeExpanded method.
My problem is that I now need to expand my treeview so it will look something like this:
[code]....
What I want now is:
1. to be able to close an opened parentNode if i click on some other parentNode,
2. if i click on childNode i want to expand it so I can see grandchild,
3. if i click on another childNode for the same parentNode I want that the allready expanded childNode collapses and that the childNode I clicked on to expand.
View 24 Replies
Oct 23, 2010
how's it possible to expand or collapse only one parent node at time. i am using Xmldatasource.
View 7 Replies
May 18, 2010
I m using Teeview control for displaying Family tree structure.its having around 500 members.
now, i would like to add search functionality inside a tree,after finding appropriate node,a whole tree should be expanded from that node only.
any one have idea? how can it possible?
i found one property called "ExpandDepth" but still its not proper for my requirements.
View 2 Replies
Feb 12, 2011
I have ContentView which has 'Table of Contents' and another view (DescriptionView) which has the total description of these contents. Each content description in DescriptionView is in different sections and I have implemented accordion to manage this.
[Code]....
When I click on each content in ContentView I navigate to that particular section in the DescriptionView by the of the anchor tag which i specify in the url. My issue is I am not able to open that section which will be hided using accordion. Hope am successful in explaining my query.
View 1 Replies
Nov 2, 2010
i dont know whether this is the right place to ask. But anyone know how to programatically expand or highlight a flash menu? My menu will highlighted when i mouseover. But I want that menu of the page that i'm current in to be highlighted or seletec after i click the link and redirect. But because flash and html is totally 2 different things, how can i control it?
View 1 Replies
