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Hi,
I need to render a TreeView control relative to the width of the window. I can place the TreeView in a to show scrollbars, etc. but it seems that if I wish to set the control's width relative to the page size, so that it changes width as the user changes the window size using the mouse, I'm stuck. I can set a specific width and that works fine but if I try and set a relative column width, say 50%, the control ignores the width of whatever control it's in context of. The problem is that a user may have their resolution set to XGA or WUXGA so I need the flexibility of relative sizing as opposed to fixed.
Thanks for any advice offered 
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Put the TreeView inside a div tag.
The parent div tag should have the style display:block, width 100%;.
Add a css class for the treeview set display:block, float:left, width:50%. Give that a try.
I didn't get any requirements for the signature
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I did that but the TreeView was instantiated at page load as the same width as the widest TreeViewItem. Further, when I selected an item in the TreeView, it subsequently *increased* the width of the TreeView to accommodate the selected item.
As you can imagine, I'd like the page to load, and for the TreeView's width to always be governed by the size of the containing element, in this case, a table column and contained div.
It seems that if I set a specific width for the TreeView, it remains at that width no matter how wide the TreeViewItems are. I just don't see why the TreeView control can't inherit its width from the containing element - where the table is defined as 100% the width of the page and the containing column is set to 50% of that.
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Yes.. this is really a problem. Actually Treeview has a min-height specified. So if you resize, it wont go after a certain width.
So you want the scrollbar to appear after it reaches a certain size. As it always holds its min width, you can set the width of the container to show the scrollbar of the container.
Just place the treeview inside of a <div> with overflow:auto for width. For example
<div style="width:128px;overflow:auto">
<asp:TreeView runat=... </div>
Hope it solves your problem.
You can use
<asp:TreeView ID="TreeView1" runat="server" Width="178" ...
to define width of the Treeview.
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I'm afraid that's exactly what I've tried doing. Placing the div around the control provides the TreeView with the scroll bars I need but it doesn't allow me to control the relative width of the TreeView. It seems the TreeView's width is governed by the width of the TreeView Items it contains unless the width is specified. Of course, if I resize the page, the TreeView remains at the same size which is fine if you know what resolution the user will be using, but if the user can display the page in anything from XGA to WUXGA, what looks fine on a low resolution screen will look pretty poor on a high res one 
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Yes, as an user, it is not good to have horizontal scrollbar in place. Users generally dont like to scroll the horizontal scroll bars(at least web users).
How about dealing width dynamically using JS ? You also need to have a minimum width set, so that every time the browser resizes, you need to trap browser resize event and set the size of it dynamically using javascript.
I generally do make the site in certain fixed resolution, and leave blank space around the content when in high resolution... if full screen content is not required exactly.
Depending on your requirement you need to make your site.
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Generally, speaking I do try and ensure I use fixed sizes for my ASP.NET sites. Unfortunately, in this instance, a user asked if the width of the TreeView could be increased. They're using a high-res screen but other users use laptops with relatively low-res screens. The content of the TreeView can be very wide which is why the high-res user wants to take advantage of the res they're working at. The only other thing I can think of is to use a fixed width and display a Tooltip showing the full text of a TreeViewItem that the mouse is positioned over.
It really is a pain that the TreeView is so inflexible and it's unacceptable that it's never been fixed considering how long it's been available to developers :/
I now have to implement a fix which will be at best a compromise
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I have a string in the format "2|3|4"
I then split this string in an array.
the problem i'm having is telling the form to iterate through the array and set the checked property of the checkedlistbox to true if the value is equal to that in the array.
If anyone can help me it would be most appreciated.
ASP all the way
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Something like the following.
<br />
foreach (listitem li in yourControl.Items)<br />
{<br />
foreach (string s in yourArray)<br />
{<br />
if (li.value == s)<br />
li.selected = true;<br />
}<br />
<br />
}<br />
I didn't get any requirements for the signature
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Thanks I changed the code then realized that the problem was originating from the xml file i was binding to the checkboxlist. Thanks for your help.
ASP all the way
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A bit shorter version with one loop :
string elements = "2|3|4";
string[] arr = elements.Split('|');
foreach (ListItem fld in chklst.Items)
fld.Selected = arr.Any(item => item.Equals(fld.Value, StringComparison.InvariantCultureIgnoreCase));
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Hi-
i am wondering if there is any way to do the following:
i want the other developers to just create an aspx page...and put some defined tags...lets say something like...
<ucone></ucone>
<uctwo></uctwo>
<ucthree></ucthree>
if they put the above tags in their aspx page...and also the container user control (that i create) on the same page....the container user control will retrive the above tags and load appropriate user controls (with those names as tags) dynamically in the container user control..hope it makes sense
thanks
modified on Monday, November 23, 2009 11:38 AM
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samir80 wrote: can't use angle brackets in the post
Yes you can, just put it in a code block like this to make it readable
<ucone></ucone>
<uctwo></uctwo>
<ucthree></ucthree>
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Yes why not.. Actually User control is used to make a module of some content. It has both designer and Code.
I would recommend to use Custom control for this. Create a Template for layout in your custom control where if user places these tags, load the appropriate content accordingly.
This might help you to create custom control using Templates :
http://msdn.microsoft.com/en-us/library/aa478964.aspx[^]
Cheers. ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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So I am working a on a new application. It is rather small, but critical. The maintenance section of the program has about 3 users with about 15 users of the display.
Anyway, I have a few pages that do simple CRUD operations via some stored procedures. Personally, I am content to use a datareader in the code behind to load the form with data that will be edited. However, I know some developers cringe at the thought of using a datareader in the code behind.
Anyone have an opinion on this?
I didn't get any requirements for the signature
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IMHO, the datareader is good for processing lots of rows, but if you want to make your life simple, try using a dataset or datatable. You can bind it directly to a Gridview in a couple of lines of code and Bam ! The stuff just works.
I'm still learning, so what the h3ll do I know. 
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I agree. I use datatables whenever I do databinding (for grids or lists etc). But when coding for a single row, that is when I use the datareader.
I didn't get any requirements for the signature
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Hi,
does anyone know what versions of unicode are in use for asp.net 3.5 and .net framework 3? We need to know for language support.
Thanks
Martin
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Means... Unicode is used to store data. Did you mean what is the supported unicode for Strings ?
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Hai
see below code
<%@ Page Theme="Default" MasterPageFile="~/Shared/main.Master" Language="C#" AutoEventWireup="true" CodeBehind="Login.aspx.cs" Inherits="CMCS.UI.Shell.Web.Login" %>
<html>
<head>
<title>
</title></head>
<body>
<asp:Content ID="Content1" runat="server" ContentPlaceHolderID="ContentPlaceHolder1">
<asp:Login ID="Login1" runat="server">
<LayoutTemplate>
<fieldset>
<legend>Login</legend>
<div>Login
<p>
<small><i>You need to be logged on in order to download the CMCS application. Please provide the username and password that was given to you, and click "Login".</i></small>
</p></div>
<div><label>Username</label></div>
<div id="fUsername">
<asp:TextBox ID="Username" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="UserNameRequired" runat="server"
ControlToValidate="UserName" ErrorMessage="User Name is required."
ToolTip="User Name is required." ValidationGroup="Login">*</asp:RequiredFieldValidator>
</div>
<div><label>Password</label></div>
<div id="fPassword">
<asp:TextBox ID="Password" runat="server" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="PasswordRequired" runat="server"
ControlToValidate="Password" ErrorMessage="Password is required."
ToolTip="Password is required." ValidationGroup="Login">*</asp:RequiredFieldValidator>
</div>
<div><label>Language</label></div>
<div >
<asp:DropDownList ID="ddlLan" runat="server">
<asp:ListItem>English</asp:ListItem>
<asp:ListItem>Hebrew</asp:ListItem>
<asp:ListItem>Russian</asp:ListItem>
</asp:DropDownList>
</div>
<div id="fLogin">
<asp:Button ID="LoginButton" runat="server" CommandName="Login" Text="Log In"
ValidationGroup="Login" onclick="LoginButton_Click" />
<small><asp:CheckBox ID="RememberMe" runat="server" Text="Remember me next time." /></small>
</div>
<div id="fFailure">
<asp:Literal ID="FailureText" runat="server" EnableViewState="False"></asp:Literal>
</div>
</fieldset>
</LayoutTemplate>
</asp:Login>
</asp:Content>
</body>
</html>
Now just i want to know in dropdowlist i added three fields.
so now in .cs page i want to take slectedvalue in dropdownlist .
ddllan.seletedvalue.tostring(); i m trying to do this.
but the thing is i enable to see the ddllan id also.
is there any am i msiing in this code.
try and try untill reach success..
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Hi All
Can u try the folloeing thing i think this will solve ur problem.
string a = ddRole.SelectedItem.Text
Thanks and regards,
Amit Patel
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Thanks for reply!!!
No Its not working . the error was ddlLan does not exist in this current context.
try and try untill reach success..
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I am not getting what you are trying to say but
Rajeshwar Code- Developer wrote:
You Should add runat="server"
for example
<div id="fPassword" runat="server" >
Rajeshwar Code- Developer wrote: but the thing is i enable to see the ddllan id also.
Whats The Point You Are explaining Here? 
DropDownList.SelectedValue
is enough..!
LatestArticle :Log4Net
Why Do Some People Forget To Mark as Answer .If It Helps.
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sashidar
wht i m saying is.
ex - ddllan.selectedvalue.tostring();
this code means we r selecting value in dropdownlist right.
so but here i m using asp:content for masterpage.
if i m trying to select dropdownlist in asp.cs page
i m getting error ddllan does not exist in current context.
try and try untill reach success..
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Hi All,
Are u working with visual studio 2005 then close the page and open it again and then write the code..
Vs 2005 gives this kind error to me also.
Thanks and regards ,
Amit Patel
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