I wanted to make a simple data-entry web application, thinking Dynamic Data would save me time.
But it turns out that the GridView doesn't even support basic user interface scenarios such as inserting a new row.
Since the project I'm building will incorporate this scenario a lot, I'm considering creating my own grid-view control that does exactly what I need.
Is it difficult to develop a web control that supports dynamic data? Are there a lot of complicated hooks that rely on closed-source functionality in the .NET framework?
Or is it as simple as making the control data-bindable and having a DataSourceObject property?
I'm trying to implement an ASP.NET DataBoundControl that supports two-way databinding. Unfortunatelly I can't find any documentation on how to do this on the web and even Dino Esposito in his ASP.NET 2.0 Advanced Topics only handles one-way databinding (also the contact form on his blog isn't working). Can anyone provide me with documentation or samples on how to do this?
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.
My requirment is to show a dynamically created pdf file directly to my web page. It works fine for the system which is having pdf reader software. But for the system which does not have the pdf software it is showing error like below
The XML page cannot be displayed Cannot view XML input using style sheet. correct the error and then click the Refresh button, or try again later.
An invalid character was found in text content. Error processing resource 'http://localhost:4252/OmanePost/Customer/EBox/PD... I need to handle this situation bit differently.i.e In this situation the file should be save to the physical location of the system for that i need to identify whether the client machine has pdf software or not then i can manage properly
currently it works if i remove the PagerSetting or remove the PagerTemplate so if have both (PagerSetting & PagerTemplate) then my page number not display.
my qeustion is: how can i display both (PagerTemplate and PagerSetting) togather at the bottom of the Gridview? plese see the below source code.
how to implement a custom role provider which has support for parent and child roles?
I have a requirement to have high level Role permissions as per the usual Role provider functionality. However, I also have a requirement to further breakdown permissions into sub roles. I toyed with the idea of having further role instances for sub permissions but I'd prefer to have a native solution which allows for sub roles.
In this scenario, the "Admin" role is actually 2 distinct roles, one for IT and one for Extranet scenarios. Ideally, there is no association between the 2 "Admin" roles because they are unique sub roles.
[Edit]: Following Igor's comment I feel I should clarify. The aspnetdb is already hosting multiple applications and therefore the use of the Application Name is not possible to segregate the sub roles as it is already being used to seperate the roles by application.
I have a Custom Repeater control that inherits from Repeater and has paging functionality, however when I click the next page button the first time it refreshes the control but does not change the page, if I click it again after that it changes page perfectly. I know what the issue is, when I click the next button it does a postback, then the data is bound to the repeater, and then after that the NextButton Event is handled.
Is there any way I can change the order of the page load events?? Or force the repeater to reload again after the event is handled?? I've included my Custom Repeater class bellow:
using System.Web.UI.WebControls; using System.Web.UI; using System.Data; using System.Collections; using System; namespace ASPresentation.Controls { [ToolboxData("<cc:PagedRepeater runat=server></cc:PagedRepeater>")] public class PagedRepeater : Repeater { public int PageSize { get; set; } public int CurrentPageIndex { get { return Convert.ToInt16(Page.Session["ProjectIndex"]); } set { Page.Session.Add("ProjectIndex", value); } } public PagedDataSource pagedData = new PagedDataSource(); LinkButton NextBtn = new LinkButton(); LinkButton PrevBtn = new LinkButton(); public bool IsLastPage { get { return pagedData.IsLastPage; } } public bool IsFirstPage { get { return pagedData.IsFirstPage; } } public override object DataSource { get { return base.DataSource; } set { pagedData.DataSource = (IEnumerable)value; } } protected void NextButtonClick(object sender, EventArgs e) { if (!IsLastPage) { CurrentPageIndex++; } } protected void PrevButtonClick(object sender, EventArgs e) { if (!IsFirstPage) { CurrentPageIndex--; } } protected override void OnInit(EventArgs e) { base.OnInit(e); NextBtn.Text = "Next"; PrevBtn.Text = "Prev"; NextBtn.Click += new EventHandler(NextButtonClick); PrevBtn.Click += new EventHandler(PrevButtonClick); } protected override void OnLoad(EventArgs e) { base.OnLoad(e); base.Controls.Add(PrevBtn); base.Controls.Add(NextBtn); } protected override void Render(HtmlTextWriter writer) { base.Render(writer); } public override void DataBind() { pagedData.AllowPaging = true; pagedData.PageSize = PageSize; pagedData.CurrentPageIndex = CurrentPageIndex; base.DataSource = pagedData; base.DataBind(); } } }
URL... I'm trying this approach and I like it, It is what i was finding. customize the function he wrote to populate the pager control:Â
private void PopulatePager(int recordCount, int currentPage) { double dblPageCount = (double)((decimal)recordCount / Convert.ToDecimal(PageSize)); int pageCount = (int)Math.Ceiling(dblPageCount); List<ListItem> pages = new List<ListItem>(); if (pageCount > 0)
[code]...
I need the paginator is something like that:<FIRST><BACK>1,2,3....N<NEXT><LAST>where first return back to first page, back go to previous current page, next for next page and last jump to last page.How can I do that?
I'd like to implement a custom paging template for my formview that displays numeric paging as well as next/previous buttons. The pre-defined templates only appear to have numeric first last as an option. Can anyone recommend a good article that covers this?
I have read your article from aspsnippets.com about custom paging it really work, but there are a problem that if there are more record in database (2000 to 5000) than  number of page index  will be goes in large number. like 1 to 200, any way which can divide it  like 12345678910...2000.
My question is if my page size is 10 records per page and my query returning 100,000 rows then remaining all records are not in use for that page.
Is there any way so I can only fetch records from table as page size (10) with all page numbers at bottom and fetch next 10 records only when user clicks on next page number?
I have followed Custom Pagination article to implement the custom pagination using GridView.
I have also done custom pagination using the DataGrid but i am still confused on following things.
DataGrid which is there in the ASP.NET 1.1 having VirtualItemCount which is set to render the pagination interface [1 2 3 4 5 ... something like this] GridView does not have the above mentioned property then how to generate the pagination UI?
I have a custom control that is based off the gridview control located at: here The control is basically a gridview that automatically creates a column of checkboxes that can be used to "check" individual rows in the gridview. During the gridview's "CreateColumns" event, the "checkboxcolumn" is created dynamically. The checkboxcolumn also contains another checkbox in the header that is used to "select/deselect all" checkboxes in the column. Since the gridview does not automatically remember the state of the checkboxes in the checkboxcolumn on postback, I added a method to the control called "SaveCheckBoxState" which stores the indexes of the checked rows in Viewstate, and then I modified the "OnRowDataBound" event to check the Viewstate and reset the checkboxes based on the Viewstate.
I then added a call to "SaveCheckBoxState" in the gridview's OnSorting and OnPageIndexChanging events. This works great so long as I'm sorting or changing pages. However, I need it to update the viewstate everytime someone clicks or unclicks one of the checkboxes. At this time, the checkboxes are rendered with an onclick event that calls some javascript to highlight the row, or in the case of the checkbox in the header, to select/deselect all checkboxes. I need to call the "SaveCheckBoxState" method from the javascript used by the customcontrol, or I need to find a way to modify viewstate from javascript and perform the same action as "SaveCheckBoxState".
I've tried adding the "SaveCheckBoxState" to the onclick event declaration in the checkboxes, but when run, it simply tells me that the method is undefined. It doesn't exist in the parent page, and I don't think I should have to make an event for the parent page to pass the click to. It seems to me this should be all self contained within the custom control. Does anyone know how I can acheive this? Here is the code for the gridview OnPreRender event where the onclick event of the checkbox is set:
protected override void OnPreRender(EventArgs e) { // Do as usual base.OnPreRender(e); // Adjust each data row foreach (GridViewRow r in Rows) { // Get the appropriate style object for the row TableItemStyle style = GetRowStyleFromState(r.RowState); // Retrieve the reference to the checkbox CheckBox cb = (CheckBox)r.FindControl(InputCheckBoxField.CheckBoxID); // Build the ID of the checkbox in the header string headerCheckBoxID = String.Format(CheckBoxColumHeaderID, ClientID); // Add script code to enable selection cb.Attributes["onclick"] = String.Format("ApplyStyle(this, '{0}', '{1}', '{2}')", SelectedRowStyle.CssClass, style.CssClass, headerCheckBoxID); // Update the style of the checkbox if checked if (cb.Checked) { r.BackColor = SelectedRowStyle.BackColor; r.ForeColor = SelectedRowStyle.ForeColor; r.Font.Bold = SelectedRowStyle.Font.Bold; } else { r.BackColor = style.BackColor; r.ForeColor = style.ForeColor; r.Font.Bold = style.Font.Bold; } } }
I have a custom control which inherit from the Table class and in the constructor, it takes a an integer as an argument. There is no empty constructor.
Is there a way for the user to set that variable in the properties window after they drag the control onto a form.
I know some .NET controls, you can set the source for the parameter to different things like another control's property, QueryString using just the properties window.
Right now, I have to create the control dynamically. I read the query string and then created the object.
I am trying to add paging to my datagrid. This datagrid stores hierarchical data. So the top row has several children rows that need to go beneath it. When a new top row type is going to be added I want to make a new page. This way all related rows will be displayed on the same page. So, I think the tricky part might be making pages with varying sizes. I am not sure how to go about attacking this issue. All of the custom paging examples I have seen still have x amount of rows per page. Like I said my pages have to all be various sizes.
I use gridview in my page and i bound data from sql to my gridview i want use paging
In my grid view i read this article : [URL] ....Â
But there is dropdown list that we can chang page size i dont want use this drop down . I want use some defult page size for my grid view how i can do it?