As the title says , i'm looking for some kind of technology that allows me to dynamicly add & remove usercontrols.Without a postback ofcourse :)A link would be awesome , example code would be super!
View 1 RepliesI had successfully created a functionality where I can dynamically add rows and columns to a asp table by creating/re-creating controls on every page load.
I have 2 buttons - Add rows and Add columns that, basically according to a asp.,net page life cycle, occur in the following order and work perfectly fine.
Page load is fired and controls along with their viewstate are recreated. In Add row button click event - I just create a new table row and add controls to each cell dynamically.
Same thing with Add column, Delete Row and Delete Column button click events.
However, now I added a Dropdown which when its index is changed needs to retrieve values from the database and create controls based on those values and then also bind the Db values.
But it doesn't work correctly since the asp.net page cycle cannot capture the dropdown's selected value in page_load as the page_load fired first and then the selectedindexchanged event is fired later, the controls are not created.
I don't know how to handle this scenario and incorporate it into my existing code.
I have several dynamic usercontrols that I want to load them in separete tab panles.but my problem is when the postback occures my usrecontrols diapeare.however I want to keep my usercontrols in each tab panle in each postback.I mention that I write code in c#.
View 30 RepliesI have an (almost) empty aspx page and I want to insert a certain number of the same user control in this page.
I tried to add them from the CodeBehind but it seems that the UserControls are completely empty.
In the main page (MainDiv is a div with runat="server"):
protected void Page_Init(object sender, EventArgs e)
{
WebUserControl1 uc = new WebUserControl1();
WebUserControl1 uc1 = new WebUserControl1();
MainDiv.Controls.Add(uc);
MainDiv.Controls.Add(uc1);
}
(it doesn't work if i put this code on Page_Init, Page_Load or Page_PreRender)
UserControl (gw is a Gridview contained in the UserControl):
protected void Page_PreRender(object sender, EventArgs e)
{
if (_data != null)
{
gw.DataSource = _data;
gw.DataBind();
}
}
when I arrive there, gw is null (this.Controls.Count is 0).
I have several dynamic user controls that I want to keep them in each postback. but the problem is when I click on menu item at first time, every thing disapeare in my page! even the things I created on design time. would somebody please help me to find out the problem of my code?it's realy urgent!!
[Code]....
Is it necessary to reload the viewstate of usercontrols during postback? I want to know in which case viewstate is set by default.
View 2 RepliesI have the usual problem of dynamically created usercontrols not hitting the event handler for a linkbutton inside the control, but I've checked the usual problems and I can't work out what's wrong. I'm calling a function to create the controls at the bottom of my page.load (although I did try page.init as well just in case) outside of my page.ispostback check, and I'm setting the controls id's to a fixed name which is consistent across postbacks. Any ideas what's wrong?
[Code]....
Usercontrol code:
<asp:LinkButton runat="server" ID="lnkDeleteGroup" Text="Delete this group" />
[Code]....
I have usercontrol (called A) and update panel in it
Following are the control in my updatepanel
1. gridview with link button
2. DIV outside the gridview to load the usercontrol (B) from c#
when i hit the link button of gridview i am loading my usercontrol(B) dynamically from code behind and adding it to the DIV which is working fine. I have button inside the the usercontrol (B) and if i hit the button it doesn't trigger the action.
Not sure why it doesn't trigger the click event. i googled and tried enabling ChildrenAsTriggers="true" though it didn't work.
Test.ascx :
<asp:UpdatePanel ID="upList" runat="server" ChildrenAsTriggers="true" >
<ContentTemplate>
<asp:GridView ID="gvList" AutoGenerateColumns="false" runat="server" Visible="true" Width="95%"
OnRowDataBound="gvList" DataKeyNames="Id" GridLines="None"
ShowFooter="false">
[Code] .....
On Template_Click event i am loading the user control from code behind and adding it to the div[divContainer]
I tried to investigate in deeper and found that the update panel causing the issue. If i use the below code[rfered one of your article] on the page load event then it works fine. the button triggers it's action. but when i click the button which is in gridview, it should not post back as it is in update panel, but it postback.
private void RegisterPostBackControl()
{
foreach (GridViewRow row in gvList.Rows)
{
LinkButton lnkFull = row.FindControl("Template") as LinkButton;
ScriptManager.GetCurrent(this.Page).RegisterPostBackControl(lnkFull);
[Code] .....
I have built a "portal" that displays "widgets" (server side usercontrols). The page contains two columns, each containing an updatepanel. Each widget contains an updatepanel and multiview with the default view showing a "loading" message and the second view contains the actual content.
When a user logs in, I query the database to get a list of widgets the user has access to, along with their column and order number. During page init, I add all of the widgets to the page's columns in the order indicated. Once the page loads, a timer on each widget gets fired and the widget's multiview switches from the "loading" view to the content view and sets the content's visibility to true. This forces the content to load.
Setting up the load this way makes the page load appear faster because it doesn't process any of the widget data until after the initial page load. This all works fine but I have an issue with the order in which the widgets get loaded.
Currently, the page loads and the widgets will start loading from the top of the left column down to the bottom, then it will start loading the top of the right column. The page could potentially have many widgets so I end up staring at a bunch of loading messages on the right side while I wait for the full left column to load. I would really like to be able to load top down across both columns instead of the whole left column and then the right column. For example, load the first widget in the left column, then the first in the right, and so on. This way, the user would have something to look at the top instead of staring at a bunch of loading messages and having to scroll down the page while it loads.
In my application i placed a button.While clicking on button i need to generate one dynamic textbox.For every click i need to generate textbox. Ex: For the first time if i click on button i need to generate textbox.If again i click on the button i need to generate one more textbox.
View 2 RepliesI have a table created on the front end of my code called "tblSearchlist". In my code behind I have the following.
[Code]....
All this code works fine. What I want to do now is insert another dynamic table within cell1. Any ideas how to do this. This process can be done on the front end like so but I need it in code behind.
[Code]....
My current task is an ASP.NET page to display the contents of a data object. One of that object's properties is a list of named lists. For opacity's sake let's call it a Company, which has a list of named locations, and each location is associated with (only) a list of employees.In case it matters, Company has this property implemented like so:
IDictionary<string, IList<Employee>> mEmployeesByLocation;
Each of those lists can display very easily in a GridView. What I think I want is to put the whole thing in a TabContainerand have a separate TabPanel containing each grid. The tabs and grids will be identical to each other, and the name of each tab will be the associated dictionary keyIs there a good way to do this? My first thought was to use a Repeater, but you can't put one inside a TabContainer. The parser doesn't know what to do with it there.So, it looks like I'll have to create the tabs programatically. Fair enough. If at all possible, I want to avoid having to also create the individual grid controls and programatically assign all their properties.One suggestion I've gotten is to subclass TabPanel and make it work like a user control, containing a GridView and knowing how to pass databinding through to it. I'm not sure how to go about that, though, or if it will even work. I know how to subclass a control, but I don't think something can both act like a TabPanel and contain controls like a user control does.
I have html table with 1 row to fill in job details for a position.Now If a user wants to fill in job details for another position,on clicking a link, a new row should be created dynamically each time the user clicks the link.
I'm using frontpage.
what are the steps for a role based menu using sitemap and sql server database.
View 1 RepliesI just created the checkbox dynamically from database,but i can't access the individual checkbox value.
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here i'm getting the checkbox, but can't access the individual checkbox value other than that i need checkbox to be displayed rowwise.
I am developing an asp.net website and i want to dynamically add buttons on the web page and add attributes to the buttons.
View 11 RepliesI am developing an medical Application. This application has 3 Types of users. In this application I have to use a single master for displaying menus and i have to change the menus based on the user. Since i have to use ul, li tags to create menus. How can i set the Text for this li tags in server side.
View 3 RepliesI am having sp which is an dynamic sql to fetch an end result, when I called that to report wizard in both report builder and winform dataset. it was able to create the required parameter but was unable to fetch the data fields used in that sp. How to fetch that fields into the dataset .
View 3 RepliesI have following simple controls on a page
WebForm1.aspx
<asp:Panel ID="Panel1" runat="server">
</asp:Panel>
<br />
<asp:Label ID="lblContent" runat="server" ></asp:Label>
Some code behind in WebForm1.aspx.cs :
[code]....
When running the WebApp now and clicking on btnCreateDynamically, btnTest is created but when I click on btnTest its event handler is NOT invoked ?
how can i add empty editable rows in gridview dyanamically in c sharp web application
View 5 RepliesI have gridview control where i have added two templates one template is the dropdown box another one is the text box.
I have common controls (Edit,update,cancel)
In the form i have one button .
On click on the button one new row is created in the grid view
Now how do i fetch the data entered in the dropdown box and the textbox.
How to reload the updated data to the dropdownbox,textbox.
On edit(twice) click it is switching to Update and cancel mode
On Cancel(twice) click it is switching to Edit mode.
I have created a gridview at runtime. its working fine when i load the grid first time. after when i am selecting next value from ddl to load grid according to that option(selecting from dropdown list and coresponding values showing in grid) showing error that "A field or property with the name 'datafield name' was not found on the selected data source."
might be i am getting this error becuze the privious value is not being cleared"
I'm trying to build a website for real estate listing. now the data would look like a datagrid. and while clicking on it, it should open under the clicked row the dynamic data related to the specific row. (like an AJAX accordion). this website for example ( ignore the language, couldnt find any better example [URL] Now, i've been told that this works by using "Dynamic Div Creation" which i have no idea how it should work this way. Is it possible to make it work by using an Accordion inside a datagrid? or what?
View 4 RepliesIn my gridview I have
EDIT RoleUID RoleID Role Desc ....etc columns
each table contains first "EDIT" and then UID column and ID column etc columns contains.
Now i added new row with the code which you posted. But once i click on "Add New" button then the new row added like
EDIT textbox textbox textbox etc
I need INSERT in place of EDIT
and i am displaying textboxes 0 positon of grid
for (int j = 2; j < cellCount; j++)
How to display "insert" and how to put lable with uid and id values which are autogenerated..
I have a stored procedure (For Eg: sp_GetAvlData) that accepts a number of parameters, 3 of which are TimeFrom, TimeTo (as varchar) and TimeInterval (as int), formulates a Dynamic query and executes itself. So for instance, if I call the proc as follows:
[code]....
dtAvl is the datatable containing the results of my stored procedure.
The next step for me is to make each of the cells (except the cells in the first column) as a Hyperlink so that when clicked upon a cell, it populates 2 textboxes with the selected Timeslot and Name or ID (ID field is not displayed in Gridview). The textboxes are located on the same page but outside of the Gridview control.
The Challenge that I'm facing out here are:
1) As you can see, the field names being generated are not fixed and I have no control over them.
2) Because the field names are not fixed I'm not sure I can implement this using the Templatefields or BoundFields of Gridview.
Is there any way to achieve the Hyperlinking of these cells within the Gridview?