C# - Sorting Gridview Embedded In User Control?
Mar 10, 2011
I have created an asp.net usercontrol that should list users in a number of applications. For that purpose, the control renders a repeater (foreach application) which in turn renders a gridview (with users for that application).
The control renders fine, except the fact that columns in the gridview are not sortable. Nothing happens (no postback) when clicking the headers. Apparently, no JavaScript is rendered to perform the postback when clicking the header.
This is the code:
[code]....
View 1 Replies
Similar Messages:
Nov 5, 2010
I have a gridview that's inside a .ascx control that's dynamically embedded into another .ascx control, which is then called by a web form. The gridview will initially bind, but when any paging/sorting/command events are then triggered, I can't get any breakpoints inside the events to kick off. Additionally, when I look at the code-behind in the now-blank page, I see the old data sitting there.
what on earth is going on here? For edification, the .ascx page with the control is excerpted.
Parent .ascx control:
[code]...
View 1 Replies
Sep 20, 2010
I find myself always repeating code when it comes to gridviews. I want to build a usercontrol so I can just set a datasource andcolumn types etc and I can use the same control over and over in different projects.
View 4 Replies
Jan 10, 2011
I'm trying to extend the GridView control to enable sorting and paging for any situation.
When using my control I am fetching data from a database and filling a DataSet with it, then binding the GridView upon every page load. My first question would be, is this the correct approach?
To sort the GridView I am overriding the OnSorting method which stores the sort expression and direction in the ViewState, then creates a DataView and utalises the Sort method to sort the underlying data. It then sets the Data Source to this DataView and rebinds the GridView.
Paging is handled by OnPageIndexChanging which simply sets the PageIndex property and again rebinds the GridView.
My problem is; when any control causes a postback my GridView is no longer sorted, presumably because it is persistently rebound. If I don't rebind it then the GridView is empty on postback since the data isn't automatically stored in the ViewState. I have considered saving the data source in the ViewState but I would assume that this is bad practice for large amounts of data? - also DataViews are not seralisable.
The only solution I can think of currently is to override OnDataBound and sort the data every time. This results in a double sort when paging triggers a postback which seems inefficient. Code illustration of this below,
[Code]....
I'm looking for the cleanest 'best practice' solution as this is a learning exercise more than anything else.
View 12 Replies
Jul 18, 2010
Moderators Note: THIS ISSUE IS BIG FOR ME AND EVEN IF POSSIBLE, GET THE REPLY FROM THE DESIGNER OF GRIDVIEW. I have been looking for him for long. I am really fed up with reviewing a good lot of web pages on how we can possibly customize the gridview to enable sorting and paging. So many sites have listed out a lot of information and so many guidances. But the problem is that one works out fine and the other is a burden. I really feel bad about being given the job of customizing this kind of a gridview which has no user friendly approach to it. Also, this control is rendered without the pager links inside the <tfoot> tag. I have tried the Pear Pager in php. It is that good and easy to use and compared to that, the gridview in asp.net is the worst ever control i have ever tried so far.
1. i can use the images to indicate the sorting direction
2. I can have the custom pager like
[code]
<<Previous 1 2 3 .. 7 Next >>.
[/code]
When i click the next when i am viewing the page at 3 , the pager links should change as
[code]
<<Previous 2 3 4 .. 7 Next >>
[/code]
Kindly look into this type of requirement and firstly tell me whether this is possible with the gridview control. I would like this request even to be escalated to the designers of the gridview control also, so that Microsoft comes out with a reply THAT WORKS and not the kind of stuff like surfing through a lot of links and pages and finally wasting a lot of days precious time and still breaking the head with this useless control. I have spent a lot of time in searching for a perfect way. Not writing a code that is non-standard. I am really serious b'cos I have spent weeks in customizing this control. If I dont get a solid reply atleast now, I am going to generate all the output by HTML content by custom coding.
View 7 Replies
Dec 1, 2010
I have a datagrid that is displaying data that is being returned from a stored procedure. That works fine. The problem is that I want to do sorting. I know that there is sorting functionality in the grid, however, I don't want to go back to the server and get a new set of data. What I want to do is just re-sort the data that is already being displayed.
Basically, I couldn't not find an easy solution to this issue. I tried updating my dataGrid to a gridView control and even that (for my particular issue) was difficult. I wound up un-doing all the changes and just adding another grid that had just the data I wanted for the requirement. If anyone else has an issue like this I would recommend taking it out of a datagrid and writing it in jQuery. I could of written a table that had the data I wanted (and fully sortable using a plug-in mentioned below) in 15 minutes compared to the hours I spent trying to jam a square peg into a round hole.
View 2 Replies
Jan 12, 2010
I currently am using an ASP.Net gridview control and when a sortexpression is defined on the column, the column header is rendered as a linkbutton. I want to know if it is possible to convert that LinkButton to a Button control and preserve all the functionality.I cannot use TemplateColumns because I using DataControlField implementation to create columns and add them to the grid.
View 1 Replies
Jun 8, 2010
I have Gridview control which bind data from LINQ datacontext object which use store procedure. sort the gridview using LINQ datacontext object which use store procedure.
View 3 Replies
Jul 28, 2010
I am using 5items inside one template field & Grid Contains only one Column.Plz Tell me how to do sortingbased on the onefield(i.e,Date&time field) out of the 5.The main logic i want implement is Most recent dated item shound come first.Kindly help me soon.asap. Awauiting[Edit - Split from closed thread: Enable Sorting in a GridView control]
View 9 Replies
Dec 24, 2010
here's a situation and I would appreciate your response.
I have programmatically created the Wizard control:
Page_Load(obj s, evargs e)
{
Wizard ClaimDetailWizard = new Wizard();
foreach(int item in selectedItems)
{
//create new step
//added custom control to new step
//add step to wizard
}
//added wizard to a placeholder on a page
}
Based on List I get from Session i added new steps to my wizard To each step I had added a custom control
Each custom control in tern contains another custom Gridview Control in it.
So here's the problem when the page loads for example for two steps. All is good Wizard does what it's supposed to do.
But when I try to use sorting or paging in that custom Gridview. Somehow it displays the gridview I should see in the next step of the wizard.
Also what I'm noticing through debugging. Is that when I press next in the wizard I go back to the original page where I do all of the code specified above, and it recreates the wizzard. But it goes to the next step. Is this the way wizard supposed to work? Just doesn't seem very efficient.
View 1 Replies
Jun 22, 2010
I have a gridview which sources information dynamically from database.Here when i go for the default "AllowSorting" flag equal to true, i am able to achieve sorting of all displayed columns except the textBox control column whose values refreshes to zero.
View 5 Replies
Oct 13, 2010
I have a text box that is intended for an Email address. I am using a Regular eExppression validation control to validate the email address. When I place the following lines of code in a blank web Form, the validator works properly.
<asp:TextBox ID="Email" runat="server" CssClass="DefaultTextBox TextboxWidth" MaxLength="80"></asp:TextBox>
<asp:RegularExpressionValidator ID="valEmail" runat="server" ControlToValidate="Email" ErrorMessage="Invalid Email address" SetFocusOnError="True" ToolTip="Invalid Email address" ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*">*</asp:RegularExpressionValidator`>
However, when I use the validation control within a CreateUserWizard control, it does not seem to fire but other validation controls (Required and Custom validators) do fire, but not the regular expression validator above for validating the address. The following is my complete web page. The two controls above appear unchanged in the code below, they are simply embedded into the wizard control mentioned.
<%@ Page Title="" Language="VB" MasterPageFile="~/Master Pages/MasterPage.master" AutoEventWireup="false" CodeFile="Login.aspx.vb" Inherits="Login" %>
<%@ MasterType VirtualPath="~/Master Pages/MasterPage.master" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
<style type="text/css">
.TextboxWidth
{
width: 200px;
}
.Heading
{
font-weight: bold;
font-size: 12pt;
color: rgb(44, 68, 105);
}
.StdFrameWidth...............
View 1 Replies
Dec 13, 2010
I have an ASP.NET page where I call this.DataBind() to bind the controls. I also have various user controls embedded. One has a drop down list, the bind statement gets called for it 2x but the sender the first time is not the drop down list.
Am I using the databind incorrectly? I use databind to get the properties of my page bound to a datasource so that I can use those properties in the declarative code.
In my DropDownList, I added if (sender == dropDownList) which solved the problem
View 1 Replies
Oct 27, 2010
I am dynamically creating initial rows and cells in a asp:table on Page Load, whose cells need to have embedded user controls.
I have an Add Row button, where in, whenever I click I need to add rows to existing table and also persist viewstate of the user controls already added earlier to cells during initialization.
When I click on Add button, the controls disappear. how to recreate tables with their embedded user controls and populate the viewstate.
This is the basic piece of code I have currently and I am stuck -
[Code]....
View 2 Replies
Mar 9, 2010
I had a problem with my site in the past couple days and have almost recovered, but now I'm stuck on some code that has an Auto-Complete feature, which allows a user to type a name of a pub into a TetxBox, and based on the returned names, the user can click one and see that name in the GridView (just below the TextBox). The GridView was set up so that there was an href that the user could click on and that would open a window and the user would see the pub in Google Maps. The code below works just fine for the Auto-Complete and the GridView.
[Code]....
Here is the end of the working code. Somehow I need to use the code below to make
the GridView have a href to allow a user to click and see the pub in Google
Maps:
[Code]....
The code above worked fine before, but I'm not sure how it was incorporated into the GridView, and since I had a problem with my site a few days ago, I haven't been able to figure out this part.I'd sincerely appreciate any help in getting this up and running again.
View 4 Replies
Jan 9, 2011
I've written a web user control which I want to be able to drop into the markup for either aspx pages or other web user controls.I need my user control to be able to easily and efficiently work out if its inside another user control or an aspx page. My initial idea is to do it recursively with checks on the Parent property - continue looking up the nesting hierarchy until I find either a web form or a user control - but I'm not sure this the best way of going about this.
View 3 Replies
Mar 1, 2010
Got a windows forms user control dll embedded in an asp page using the html form control object tag as it needs to run client side. The windows form control does something and then needs to redirect to a another aspx page passing a parameter obtained from a calculation in the windows form contro dll. Is the redirect possible from the windows form control (same session id needs to be used) since obviously you can't call response.redirect since its not part of the server side wep page.
View 3 Replies
Feb 23, 2010
I know Silverlight controls can be embedded in an ASP.NET page but is it possible to do the same for a WPF control? The reason I am asking is because we have Infragistics which has a datagrid that can be flipped to have the columns on the left with the rows of data going down vertically. This is only in their WPF package though and I am trying to figure out a way to plug this in to an ASP.NET page.
View 2 Replies
Oct 5, 2010
I have use embedded code to assign the value to label's text property.But the assign value is not rendering.Here is my code sample,
<%lblProposedYear.Text="Hello"%>
I can not display the text "hello" at the time of page load.
View 2 Replies
Aug 12, 2010
How to use image in Custom Server Control ?
View 1 Replies
Jan 17, 2011
With embedded Javascript in an html page, I would use the following to get the ID of a control.
[Code]....
View 4 Replies
May 19, 2010
I have a silverlight application project in my solution. The other project is a web application project that has a .xap file in ClientBin.
When I created the silverlight project, it asked if I wanted the asp.net application to host it (and I said yes).
In the root directory, there is a test page for the silverlight control. That loads the control.
In another directory, I insert the SAME asp markup to get the silverlight control to launch again.
Nothing happens.
Why would the silverlight launch on one page and not on the other? how to documentation about dependencies that I might not know about?
I've put a reference to Silverlight.js on the page as well.
Here's the markup:
[code]....
View 1 Replies
Nov 15, 2010
I have a simple page createuser.aspx
on that page is a custom control userdetails.ascx
[code]....
But is the use of a control if i have to place the methods in every page, might as well copy paste the whole this.
From this i assume that it can be done differently, properly.
View 1 Replies
Mar 31, 2010
I currently have a file "abc.htm" in my Custom Server Control Project and it's Build Action is set to Embedded Resource.Now in the RenderContents(HtmlTextWriter output) method, I need to read that file and render it on the website.I am trying the following but it's to no avail:
protected override void RenderContents(HtmlTextWriter output)
{
var providersURL = Page.ClientScript.GetWebResourceUrl(typeof (OpenIDSel), "OpenIDSelector.Providers.htm");
var fi = new FileInfo(providersURL); // <- exception here
//the remaining code is to possibly render the file
}
This is an example of how the providersURL is:
/WebResource.axd?d=kyU2OiYu6lwshLH4pRUCUmG-pzI4xDC1ii9u032IPWwUzMsFzFHzL3veInwslz8Y0&t=634056587753507131
FileInfo is throwing System.ArgumentException: Illegal characters in path.
View 1 Replies
Jun 4, 2010
I don't think I understand fully how ASP.NET does inheritance of controls.I have a user control, ucBase, which has an asp.net label in the ascx file. Code behind references the label and it works fine during run time if the control is not a parent for another user parent.
If I have another user control, ucChild, inheriting from ucBase, the label in ucBase's code is always null. ucChild has no controls in its ascx fileThe server controls (like the label) needs to be declared in the ascx file and not created programmatically.What needs to be done for ucBase to see its own controls when it's a parent user control?
View 1 Replies
