Web Forms :: Dynamic Loading Of Data?
Mar 14, 2011Performance of Tree view control or any control. Load the data as per requirement. Display 100 records even if DB contains 2000 rows. Load as per user demand. How to implement this?
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Web Forms :: Loading Dynamic Ascx Controls And Passing Data To It?
Dec 3, 2010I am loading dynamic ascx controls into a placeholder using:
Control control = LoadControl([controlpath]);
PlaceHolder1.Controls.Add(control);
I need to pass the data to its public properties.
Web Forms :: Dynamic Loading Of Custom User Control
Jul 28, 2010so I have this custom user control, just some data inside divs with a fancy css.
So inside my page I need to add it multiple times, and I do so in code behind within loop.
Now, this code doesn't work
[Code]....
and of course it works fine now. My questions would be - why? can I do it without pecifying file name and just creating control the normal way like in first example?:S
Web Forms :: Dynamic Usercontrol Loading When Using ParseControl() Method In VS2008
Oct 12, 2010In the process of migrating an old VS2003 web app to VS2008, I'm running into this issue and haven't been able to find a resolution. Sample code: "Default.aspx" has a PlaceHolder(ToolHeader). In the Page_Load(), we dynamically load a user control passing in the virtual path to a helper method [public Control ParseUserControl(string virtualPath)]. This reads the content from the physical path, returns
a Control from ParseControl() method. I immediately get the following error when I open the default.aspx page in browser.
Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not load type 'DynamicUC.UcControl'.
Source Error:
Line 1: <%@ Control AutoEventWireup="true" CodeBehind="UcControl.ascx.cs" Inherits="DynamicUC.UcControl" %>
Can't figure out why it can't load the type. Namespaces are looking right. I try removing the Inherits="DynamicUC.UcControl" attribute from the "ucControl.ascx", it loads the page fine. Also, this control is a simple one and has no code behind. There are others with actual code behind. They won't work if I remove the Inherits attribute.
[Code]..........
Dynamic - Dynamically Loading Controls And Persistence?
Sep 1, 2010I am loading a series of controls in the Page_Load event. However, I have to recreate those controls each page load, which means storing their data elsewhere. This is cumbersome.
protected void Page_Load(object sender, EventArgs e)
{
MyControl control = (MyControl)LoadControl(...);
control.Initialize(GlobalClass.controlData);
//^gives the control the data it had previously.
//Or use ViewState["controlData"] if serializable.
Controls.Add(control);
}
I feel like I should be using if (!IsPostBack) {}, but I don't know how, or why. In contrast, if I place the controls into the markup, then the controls seem to stay persistent. For example, a button in mark-up will remember any changes to its Text property (I think?).
<asp:Button ID="buttonText" runat="server"
Text="Text Segment" onclick="buttonText_Click" />
How do I maintain some sort of persistence with dynamically added controls, like controls added via mark-up? This would save me much work and frustration.
(I've coded for a small eternity, but the more I do ASP.NET, the more confused I become. Which is exactly the opposite of what how I understood learning to work :-P.)
Performance - Page Contains Dynamic Elements - Loading Takes Time
Feb 10, 2010I am dynamically creating a table of checkboxes on my test.aspx page. The dimensions (row and column count) of the table are determined by querying the database. In test.aspx page, I do the following:
<script language="C#" runat="server">
protected void Page_Load ( object src, EventArgs e ) {
//Query the database to get the data for rows and columns
CheckBox[] chkBox = new CheckBox[rows * columns]; //creates a collection of checkboxes
//Iterate over the query set in a double for loop to create dynamic checkboxes
}
</script>
Right now I have the number of rows=20 and columns=10, but it can increase (with the columns more likely). I used the Net tab in Firebug to ascertain the time taken by different events and found that GetTest.aspx is taking close to 4 minutes, which is too long a time to wait. Is there a way to being down the page load time? Is my approach to create dynamic check boxes correct?
CMS / Dynamic Loading Of User Controls / Finding Making Better Performance
Jan 19, 2010I have been playing around with loading user controls in a CMS style where I can change the position and order. I have come up with this...
[Code]....
It all works fairly well - but I have alot of propertys in my user control code behinds where I could inject values into the usercontrol from my base class.
I like the way I can position usercontrols from the DB, I even added a time and date section where they could be switched on and off per day or time.
If I make every user control access the DAL for the data, it means i will have one select per user control, which means including my bassclass I could have upto 15 selects (visits tot he DB) to make the front page. Though this does not seem to make a performance problem, I was wondering if there was a better way of doing this.
AJAX :: Dynamic Loading Web User Control With Gridview Updatepanel?
Jan 8, 2010Wasn't quite sure where to post this, seems like the issues could be any number of things, so I'm trying to keep it general... mods, feel free to relocate appropriately.
I am trying to build a page which will load various web user controls dynamically in response to menu selections made by the user, and then allow other interactions inside those controls (such as gridview manipulation and updates). The content page simply has a loginview, an ASP:Menu control, and an ASP:Placeholder. The placeholder is filled by the appropriate user control in response to the menu selection. Selecting a menu item causes a postback and the correct control is loaded as expected.
I realized that using dynamic loading with interactive controls would be a problem with respect to postbacks, so I added a ScriptManager to the content page and enclosed the gridview controls in the web user controls within UpdatePanels, thinking that all postbacks required by the GridView would be handled inside the UpdatePanel and not cause the parent page to refresh (which would then wipe out the dynamically loaded control). However, it does not seem to work this way. Instead, although the control containing the GridView loads correctly and displays data, when I attempt to page, edit, or select any item on the GridView, nothing happens on the first click. If I click on any item inside the control a second time, the entire page refreshes and the control and its contents disappear.
I have removed all the code inside the web user control and placed it directly into the content page to test, and everything functions correctly in that case. I think therefore that I must be missing something with how the user control is working, particularly with respect to the UpdatePanel. Is it just not possible to use an UpdatePanel to confine actions inside a user control that would otherwise cause the entire page to postback, or am I missing something somewhere?
Psuedo-code for the issue below
Content page
[Code]....
Control
[Code]....
Forms Data Controls :: Adding Dynamic Button To Dynamic Table
Aug 10, 2010I have a dynamic Table which contain 8 rows and 8 Colums
Table t = new Table();
TableRow rr = new TableRow();
TableCell cc = new TableCell();
and in the each Cell CC I add a dynamic Button(Or Linkbtn)
LinkButton LB1 = new LinkButton();
LB1.Text = "AM";
LB1.ID ="Link1";
cc.Controls.Add(LB1);
rr.Cells.Add(cc);
LB1.Click += new EventHandler(LB1_Click);
t.Rows.Add(rr);
i have a table with 8 rows , 8 colums and each cell contain a LinkButton (which diffrent in IDs) I want to add Lable in the same cell of this LinkBtn(LB1) which it clicked but I cann't What shoud I write here?
void LB1_Click(object sender, EventArgs e)
{
// throw new NotImplementedException();
}
Forms Data Controls :: Dynamic Validation On Dynamic Checkboxlist?
Apr 1, 2011I have a loop which creates for each item ID a Dynamic created checkboxlist control
how do I create a dynamic validation control on a dynamic checkboxlist?
Load Dynamic List Of Elements AFTER FINISHED Loading Of Several Form Elements?
Mar 1, 2010I have...a dynamic populated select box several input boxes a submit button form fields are loaded initially using cookies several dynamic populated divs
I want... start loading the content of my DIVs after all FORM elements have been loaded completely (= filled with data, select boxes are populated)
Sample code:
[code]....
Data Controls :: How To Add Dynamic Rows Together With Non-Dynamic To Single GridView Table
Dec 11, 2013I have a Webform with a TextBox (Static) and 3 TextBox (Dynamic - based on the following article: [URL].... )
How to use this scenario with a single GridView table?
Based on the User input, the GridView might have (1 + 3) columns; (1 + 6) columns; (1 + 9) columns; ...etc.
Data Controls :: How To Create Dynamic Buttons On Click Of Dynamic Button
Jul 24, 2013 im creating dynamic buttons on page load and on the click event of button1 handlere iam creating more buttons this is going fine but on click event of button 2 work is not done so how to maintain a chain of creation of button on click events
protected void Button2_Click(object sender, EventArgs e)//
{
ClientScript.RegisterClientScriptBlock(this.GetType(), ((Button)sender).ID, "<script>alert('Button_Click');</script>");
Response.Write(DateTime.Now.ToString() + ": " + ((Button)sender).ID + " was clicked");
}
protected void Button_Click(object sender, EventArgs e)//this button click will call all the items related to department
[code]....
Forms Data Controls :: Dynamic Gridview Inside A Dynamic Gridview?
Oct 9, 2010If there's a better way to accomplish what I'm attempting I haven't found it yet. That being said, I have create a gridview like the one here,[URL]And with some minor tweaking it working great for all my fields, checkboxes, etc. The issue is my last column is another gridview, and I'd like it to function the same. that is, a dynamic gridview inside of a dynamic gridview. I get that I have to create it initially with null values or it won't show up. I guess what I'm having trouble figuring out is instead of go will null data in the parent gridviews column, do I place my blank child gridview. Do I create and bind the child gridview first, or second. Generally just not sure. Also, as far as storing the data from the child gridview goes, will each one need it's own datatable?
[Code]....
[Code]....
AJAX :: Display Light Box Loading Image On Page When Update Panel Is Loading
Mar 6, 2013I have update panel on the page to avoid postback and placed a dropdownlist control within that update panel. DrodownList is filled with Category names and also it's autopostback set to True.
Now whenever dropdownlist index change's on select, untill page loads complete data it should show mesage as "Loading.... in center and middle of the page and background should become bit transparent". And when page load completely with data then that background and message should get disappear.
Forms Data Controls :: Gridview Is Taking Too Much Time While Data Loading From Excel
Mar 24, 2010I have Gridview control with all rows are edit mode using Itemtemplate and footer template. Some of columns are having ajax calendor control.
Page is very slow. If I am loading 500 rows into GridView
Crystal Reports :: How To Loading Gif Image While IE Progress Bar Start Loading
Apr 3, 2010i have developed my asp.net application along wih crystal report .... i need to show loading image on ever client and server side request .... (i.e) like when ever IE progress bar get loading i want to show my gif loading ... after IE progress bar finish its loading, my gif loading image should disappear .
View 2 RepliesForms Data Controls :: Faster Loading With Data Heavy Page
Aug 10, 2010I am trying to find the best way to have a page with a lot of data from queries to a database load faster. Looking at [URL], when viewing information about a domain, I see that their page loads and each section has a loading symbol, so the page itself displays fast and the data comes when it is available. How do they do this? Update panels around each section with a call to a Web Service? Also, Google AdWords seems to do this too when you load the Ads or Keywords tabs of a Campaign.
View 3 RepliesForms Data Controls :: Prevent Previous Parents Data Is Loading To One Of Child Record
Mar 21, 2010I have datagrid. i loading data to grid from user control like below
[code]....
when i click the button Show child item. all the child item are displaying except one. for first child item not displaying, but one of parent items is displaying inside child grid.
it seems like previous parents data is loading to one of child record. How can i prevent that?
Forms Data Controls :: Image Not Loading Data List?
May 22, 2010the code i used for binding the image in the asp.net image button is as foloows
[Code]...
Web Forms :: Delay Loading The Data?
Nov 23, 2010i have a asp:table with 0(zero) rows and button on my page.
when user clicks the button, it add five rows into the table and show them on the page.
but i want to show each row with some delay on page.
sequence should be like this : once a rows is added then show the loading image then add another rows ,then loading Image,then add row and so on
Web Forms :: Loading Data Into Literal Control?
Feb 1, 2010i need to load data into literal control which is coming from wcf service.
The data which i get is may be of a simple string are may be a html page in the form of string.
what ever the service returns the string i should load that into the literal control.
I am able to load html page which is physically present on the local path to the literal.
I need to load the same thing coming from wcf service
Forms Data Controls :: How To Asynchronous Loading On A Web Page
Jul 1, 2010I have a scenario where I have two data grids (both dynamic) to be loaded onto a page. However, the data that needs to be shown on one of the grids has no dependence on the data of the other grid. So, when fetching the data, I want to fetch it in an asynchronous manner and bind that data to each of the grids individually. Currently we have a code like
GetData(ForGridOne) ;
GetData(ForGridTwo);
I want to make these calls asynchronously so that in order to load the page, the time taken would be lesser. What should be the ideal way to go forward with this ? One more thing, we would be hosting the application in a portlet which doesn't support AJAX.
Forms Data Controls :: Loading Dropdown In A DataGrid?
May 14, 2010I have come across an issue with my DataGrid loading several drop downs. The idea is I initially wanted it to load the drop down on the OnClick event of my DataGrid, however I realised there is no OnClick event (I come from a windows form development environment). Considering the time it may take to load this drop down may be extensive (which is why I wanted this drop down to be loaded individually, only when user clicks it) I came up with another idea of wrapping the Grid in an ASP Update Panel so I load all the drop downs in the PageLoad() event.
My question is, is this the correct thing to do? If I am loading 100 drop downs wouldn't it be better to load the drop down objects indivdually as opposed to all at the same time? How do I load a drop down based on the OnClick event of a DataGrid?
Tried using the OnSelectedIndexChanged() event but doesn't seem to fire the event after I click on the row. Ideally I want something like when the user clicks on a row, I want to load the drop down associated with that row. Is this possible?
[Code]....
Want To Display A Loading Animation While Page Is Loading
Jun 23, 2010I want to display a loading animation while my page is loading, and when loading is complete then obviously hide it.
I am working in ASP.NET using Masterpages, just wondering there is a a simple way of doing this using JQuery?