When I declare the TreeView Nodes:
[Code]....
I can programmatically control the collapse and expansion of nodes:
[Code]....
When I use a SiteMapDataSource:
[Code]....
How do I now programmatically expand and collapse nodes? The code above doesn't work because the number of nodes is now 0.
somewhere on the net I found very useful example of programatically databainding the treeview control (code blow). I use this treeview as menu bar in my masterpage. It works fine but with one exception: when I click the node of this treeview I'm redirected to the correct page but after page is reloaded my treeview is collapsed and node I chose just before is not highlighted. What to do to correct this problem. Do you know better examples of programatically databainding of the treeview control? Maybe it will be better to bind data to the sitemapdatasource and next to the treeview. Then I shouldn't have to worried about this?
[Code]....
Regards. Pawel
Sample SiteMap snippet:
<siteMapNode url="~/Folder/File.aspx" title="Aspx Page">
<siteMapNode url="~/Folder/File.aspx#Toc" title="Introduction & Table of Contents">
</siteMapNode>
<siteMapNode url="~/Folder/File.aspx#Anchor1" title="Section 1">
</siteMapNode>
<siteMapNode url="~/Folder/File.aspx#Anchor2" title="Section 2">
</siteMapNode>
<siteMapNode url="~/Folder/File.aspx#Anchor3" title="Section 3">
</siteMapNode>
<siteMapNode url="~/Folder/File.aspx#Anchor4" title="Section 4">
</siteMapNode>
</siteMapNode>
When the URL is ~/Folder/File.aspx#Anchor1, I want "Section1" to be automatically selected in the TreeView. However, "Aspx Page" is always displayed no matter what the anchor is. Do I have to override SiteMapDataSource, create a new SiteMapProvider, or is there an easier way to do this? When binding a TreeView to a SiteMapDataSource,
I have a Default.aspx program that contains a Treeview with a SiteMapDataSource. I also have a web.sitemap loaded up with urls. When I run the deafult app I get the tree layout that matches the numbers of options but no text on any of the options to click.
View 1 RepliesI have a tree view which has files inj its leafnodes.
I would like to set the leafnodeimage programmatically as a function of the file extension.
I have a treeview on the left panel and the gridview in the content page. Both the treeview and the gridview bind to the same datasource and have the same functionality. For instance, clicking employer in the treeview and clicking the employer link in the gridview take you to the same page. All I want is when I click the employer link in the gridview, I want the gridview row command event to call the selectednodechanged event of the treeview, so that the treenode for employer has the selected node style and performs the function of hte selectednodechanged. i have tried treeview.nodes[0].select but this does not fire the selectednodechanged event.
View 3 RepliesI am creating and configuring multiple TreeView controls programmatically:
foreach (DataRow dr in ds.Tables[0].Rows) {
TreeView TV = new TreeView();
TreeNode newNode = new TreeNode();
[code]...
in my masterpage I have the following:
<asp:SiteMapDataSource
ID="MenuSiteMap"
runat="server"
ShowStartingNode="False"
SiteMapProvider="SpanishSiteMap"
/>
In My code behind I want to provide the SiteMapProvider instead of having it hard coded from the aspx page. What would the code look like to replace in thie case 'SpanishSiteMap' and have that come from code behind in c#? I thought something like this but i know this is way off. hopefully someone has a one liner code that will give provide some sleep. I've come closer to a working code. this is what i have... but get the error mentioned below.
MasterPage myMasterPage = (MasterPage) this.Master;
// do a find control on myMasterPage and find the siteMapDataSource
SiteMapDataSource mySiteMapDataSource = (SiteMapDataSource)myMasterPage.FindControl("MenuSiteMap");
// now u have the reference to the siteMapDataSource used in the master page how do I set the provider..
mySiteMapDataSource.Provider = "SpanishSiteMap";
Error: Cannot implicitly convert type 'string' to 'System.Web.SiteMapProvider'
I have been looking for a answer but could not find one that I could understand (I am not a pro, far from this...). I have a menu and a sitemapdatasoure, working fine by now. I would like to show the menu options based on the role of each user. I know it can be done with SQL Server, but I don't have it, I use MySQL.
View 2 Replieshow can i get site map data from the SiteMapDataSource in codebehind same as i would if i wanted to create a typical dataSet from an XML File?
i want to create a custom menu programmaticaly and already wrote out a site map - i know i can just copy it to an xml file but I want to know if its possible to access it from a SiteMapDataSource like
SiteMapDataSource ds = new SiteMapDataSource();
//iterate through nodes to create custom controls, etc...
I'm following a tutorial from [URL] to create a better menu with submenus. Does anyone know how to convert this inline code to code behind? I'm not a big fan of inline code but I have no idea on how to convert it to code behind.
[Code]....
Periodically a rash of occurrences of the following error happen. I believe they're the result of hack attempts. Whether that's the case or not, my question is how can I handle the error? I want to avoid unhandled exceptions. The TreeView control is just
a standard .Net TreeView control, not a custom one. If you suggest a code solution, please code it in VB.Net as that's what I'm using.
Message: Input string was not in a correct format.
Stack Trace:
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.Web.UI.WebControls.TreeView.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.WebControls.TreeView.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
I am just starting out with ASP.net and C#.
I have a master page that contains the main site navigation and a child master page that contains a secondary menu. I want to set the starting node on the secondary menu based on the selection on the main menu.
I can get the code to work when the menus are on the same page, but when I separate them into their respective master pages, I get an error saying "The name 'SiteMapDataSource2' does not exist in the current context".
I have tried playing around with the FindControl() method, but either it won't work or I'm not getting the syntax right. Most of the information I find is for a child page referencing the master page, but not the other way around.
How can I access the SiteMapDataSource2 control from the master page? If possible, can you include the exact syntax as I am still trying to get the hang of this.
Here is a basic representation of my code, with all of the uncessary stuff stripped out:
Master Page
[Code]....
Master Page Codebehind
[Code]....
Child Page
[Code]....
Is it possible to control a web page from another web page. ?My scenario isI have a page (UI1). It has a hyperlink. Clicking on the same it opens another seperate UI (UI2). UI2 also have a hyper link.My question is , is there any way that I can control UI1 from UI2 using this hyper link
View 4 RepliesI have a treeview which will be generated dynamically which need to be displayed on left side and when user clicks on a node it need to open a page on the right side of the same page. and each node has different aspx page. so whenever user selects a node the page details should be displayed on the right side .we can use an iframe on the page which will display the different pages clicked on the node.Is there any alternative i can use to display different pages based on the user selection on the right side without using iframe.
View 5 RepliesCode to drag and drop a TreeNode to another control or tag such as Div or even another TreeView.
View 1 RepliesI want to enable a text box when a check box is pressed. I am using asp.net 2.0 with vb.
Here is my current code, no errors are returned but it doesn't do anything when the check box is clicked.
[Code]....
[Code]....
[Code]....
[Code]....
How can I set up a format for a text box so that if they are to put a date or the time they are required to put it in as mm/dd/yy or time as 12:00am?
View 6 RepliesI'm sure you've seen sites that display a portion of the available text in a limited space followed by an ellipsis or a [more] link. That's what I need to do. The text is in a database field, and includes carriage returns and line feeds. I can't just count the number of characters. How can I only display the text that will fit in a defined space? I've tried using a panel control with the height defined. I've also tried a div with the height defined. Neither has worked. How is this done?
View 6 RepliesI'm new to programming and recently spent some time navigating these forums and searching google to learn how to manipulate Validations with ClientValidationFunction using JavaScript and OnServerValidate with C#. Now that I have a decent handle on it I wanted to give back a bit. I hope some of you all can use this information. Mess around with it and see what its doing and how.I'm using Visual Studio 2008 as my IDE. I did not include a master page so just copy and paste, set break points, and add a watch to the following:
x
options[x].value
options[x].checked
[code]...
I have a form with several textboxes. All of these have AutoPostBack="True".
My problem is that the focus disappears to goodness knows where after each postback. The behaviour I would like to enforce is as follows,
If the user hits the Enter or Tab key after filling in a textbox then the focus should go to the next field on the form (to be explicitly specified in my code).
If the user clicks on textbox X after filling in textbox A then the focus should go to textbox X after postback, even if it is not the next in the list.
In other words, I want the form to behave in the way that most users would intuitively expect.
I have Googled for potential solutions to the loss of focus after postback but the few that I have found were many years old and I am unsure that the advice is still relevant for ASP.NET 4.0. Some of these old solutions also appeared to be invalid for browsers other than IE. What is the current best practice for handling this issue?
BTW, VB.NET solutions are preferred though I will also be happy to accept C# suggestions (which I would run through a code converter). Note that I have a single sub in my code for handling the TextChanged events for all my textboxes. This means that I have to use the following code to work with the textbox that has called the sub.
Dim CurrentTextBox
As
TextBox =
DirectCast(sender,
TextBox)
If addressing the focus problem means that I have to have individual TextChanged event subs for each textbox then so be it, but I prefer the simplicity of my current single sub approach.
I'm trying to figure out how can I control my linkbutton which nests inside my DataItem in the ItemTemplate.What I wish to do is to check something in the server side and according to that, decide whether I wish to alter its visibility to "true" or to keep it hidden. I think that the method which is going to solve it is the ItemCreated, although, I don't happen to know how to control that specific item of mine.
Here is my DataList control:
[Code]....
I have a GridView bound to a SqlDataSource. If the text in a particular column is very long then the Grid view becomes very wide, well off the page. How do I constrain it, if necessary truncating the text displayed? I cannot find the relevant setting in the properties section.
View 1 RepliesI have a question regarding the use of Panel control in a FormView controlled by buttons outside a FormView.
There is nothing found on the internet about it.
Can somebody explain to me what the code is for 2 Panel controls in a FormView with 2 buttons outside of the FormView changing the Views.
And also the code with the buttons insise a FormView.
without binding it to a datalist or something else only thru buttons.
The Panel's are in the edit template but I dont think it doesnt really matter in which template it is.
I tried hours to search for an answer or to code it myself but I even dont get a error message.
The normal way with Panel control without a FormView is easy.
HTML
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
[Code]....
If I have to show big text in gridview's particular column, then how can i control its height and width (especially) in ASP.NET C#so that i do not affect other columns height and width.
View 1 Replies