DataSource Controls :: Programmatically Databinding Treeview Vs Sitemapdatasource
Nov 12, 2010
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
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Similar Messages:
Feb 17, 2010
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.
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Nov 23, 2010
I was wondering what would be the best pratice to databind a gridview programmatically.Normally i put my databind code in the page_load() but is there a way to reduce the number of times the databind method is called?I mean... the page_load() method seem to be called a lots of times when doing callbacks with the grid.
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Feb 10, 2010
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,
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Jan 18, 2011
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.
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May 6, 2010
I 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]...
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Oct 18, 2010
I 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.
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Sep 7, 2010
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]....
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Jul 12, 2010
I have the following SQL Tables:
[Code]....
I'd like to use bind these tables to the treeview using Linq as I read somewhere it is the fastest way to bind the TreeView control.
This TreeView control is based on the Client dropdown list, once a user selects the client, the TreeView is populated accordingly.
how can I accomplish this task. Currently I am using Stored procedures to bind the treeview.
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May 27, 2010
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.
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Mar 30, 2010
I have a treeview on an ASP site that I populate from a DB using a Stored Proc that delivers XML. I am using an XML datasource that is loaded from the SP programmatically in the dadtasource's onload handler (if there is a way to load it from an SP declaratively, let me know). The treeview has its 'ShowCheckboxes' property set to "Leaf" (see code below) so that any leaf node can be checked.
The problem is this - I have a 'Checked' attribute in the leaf nodes of the XML (see below) that I would like to have databound to the treeview (I have databound the Name and ID attributes successfully) and I can't seem to find a way to do this. I also tried programmatically, but the treenode's dataitem property seems to have the value 'Nothing' even after the tree is databound.
How do I bind the 'Checked' attribute to the treeview's checkboxes? (Prefereably declaratively)
Example of XML here:
[Code]....
Note that nodes have Name and ID attributes, and Leaf nodes have Chacked attribute.
Here is the declaration of my treeview:
[Code]....
Here is the declaration of my XML datasource
[Code]....
And here is the onload event handler:
[Code]....
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Mar 3, 2010
I have a table with columns A and B, values as follows..
A B
-- --
1 11
1 12
1 13
2 21
2 22
2 23
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Jan 5, 2011
assign updateParameter value to sqlDataSource programmatically?
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:InternalConnectionString %>"
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Aug 7, 2010
I have a gridview on a page and based on the row selected I need to fill out a form view (dynamic data enabled) from a linqdatasource. On gridview_sleectedindexchanged I create the linqdatasource and set it as the datasource for the formview. It displays nicely but clicking update returns a "Could not determine a MetaTable" error for the datasource mapped.
THe goal is to create a single page that allows users to select a row then get the appropriate data, create an updateable formview so further edits can be done. Do not want to scaffold.
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Mar 16, 2010
how to modify the destination database in SSIS package using c#?
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Apr 1, 2011
I have a page called Page2.aspx and it is called by another page called Page1.aspx and Page1.aspx passes two parameters namely: Name and Category to Page2.aspx. Does anyone know why the following code from Page2.aspx is not working and it keeps giving an error message as follows: " You have declare the parameter @Username".
string Cat1;
string Name1;
[Code]....
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Oct 7, 2010
I need to execute a stored procedure which is a simple delete (record) query. Programmaticaly, I want to pass in a parameter "ID1".
Assume I will pass in the ID1 parameter on a delete link click event froma GridView control. What would the code be to execute the existing stored procedure?
ID1 - the parameter and primary key of the source database for the record to be deleted
GridView1 - the GridView control
spDeleteRecord - the stored procedure needing the parameter ID1 and to be executed from C# code
DeleteTableAdapter - an existing TableAdapter for the existing
Here's my start:
[code].....
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Apr 15, 2010
I have a set of keywords (about 1000 keywords), and I want to build a wide table, up to 1000 columns:
+each column corresponding to a keyword
+each row will represent an article document, which each cell will be the frequency of the keyword in the document
How to do that in a programmatically way? (e.g., using Linq and C#)
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Apr 27, 2010
I have a collection of objects I bind to a Listview like this:
if (!IsPostBack)
{
List<Equipment> persons = new List<Equipment>
{new Equipment{ItemName = "Sworn", ItemCount = 7, ItemCost = 255}, [code]....
I want to Add/update/delete from this object collection and submit the final data object collection to the BL when the user saves... Rather than just delete/add/update everytime a row is changed.So my question is how do I maintain state for that datasource? I have tried this (delete example)
protected void lvMain_ItemCommand(object sender, ListViewCommandEventArgs e)
{
switch (e.CommandName)
{
case "Delete":
{[code]....
But it does nothing. I can't rebind it to the datasrouce because at this point the datasource is null.. I assume the listview keeps its own view state which contains the data?... I guess worse case I can always hold the Object Collection in a Session object.. ..
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Jan 19, 2010
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'
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Aug 5, 2010
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.
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Jan 30, 2010
how 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...
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Dec 22, 2010
The drop down list is used to determine what search criteria will be used to find an invoice. I tried to set the Select method in the switch statement. I don't understand how to set the Select Method and the select parameters programmatically though . I tried a few different ways but can't make the compiler happy. My ODS is in scope in the code behind. I'm not able to access it's properties though. The BAL resides in a separate project that is a ClassLibrary. I also have a using statement for the ClassLibrary project in the code behind.
give me an example of how to do this?
Mark up:
[Code]....
[Code]....
[Code]....
[Code]....
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Sep 14, 2010
Can i create 2 sitemaps in the same application? I tried doing it. When I tried to add a datasource to a treeview, it is showing first site map. Eventhough I wrote sitemapdatasource2, then also it is showing first sitemap contents. How can I solve this?
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Jul 30, 2010
I've managed to render TreeView using custom made Hierarchical Datasource based on Linq queries on self referencing table. Rendered output looks well but... Every Node in NodeCollection has the same index = 0. Therefore when I click on any collapse button - the whole tree Collapses. In generated html every node has the same id = MainContent_TreeView1n0 I suppose n0 should increment to n1 n2 n3 and so on.
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