Microsoft has now released Orcas into the wild with a Community Technology Preview download. Links: Orcas CTP download, Orcas CTP - Development Tools for WinFX.CSS Friendly ASP.NET 2.0 Control Adapters is a little project run by Brian Goldfarb and what it does is use the power of the ControlAdapter object to change the way ASP.NET controls get rendered. They use CSS layout to control the way things look and try to remove the old table based format.The GridView is nothing more than an oversized DataGrid. The internal concept is completely rewritten, as far as I see, though. For example, Columns are not called columns anymore, they are DataControlField. Well, I stumbled upon one situation where I needed to format the autogenerated columns in a GridView. Normally, you could take the Columns collection and change the DataFormatString property for each column, but autogenerated columns (or AutoGeneratedField) are not part of the Columns collection. More than that, AutoGeneratedFields are nothing more than BoundFields with lots of useless restrictions on it like being a sealed class and throwing errors when trying to change some properties (like DataFormatString).protected override AutoGeneratedField CreateAutoGeneratedColumn(
AutoGeneratedFieldProperties fieldProperties)
{
AutoGeneratedField field =
base.CreateAutoGeneratedColumn(fieldProperties);
StateBag sb = (StateBag)field.GetType()
.InvokeMember("ViewState",
BindingFlags.GetProperty |
BindingFlags.NonPublic |
BindingFlags.Instance,
null, field, new object[] {});
sb["DataFormatString"] = "{0:N}"; //or the format string you prefer
field.HtmlEncode=false; //see update
return field;
}
GridView Export to Excel Problemspublic virtual void VerifyRenderingInServerForm(Control control)
{
if (this.Context == null || base.DesignMode) return;
if (control == null)
{
throw new ArgumentNullException("control");
}
if (!this._inOnFormRender && !this.IsCallback)
{
throw new HttpException(System.Web.SR.GetString("ControlRenderedOutsideServerForm", new object[] {
control.ClientID,
control.GetType().Name
}));
}
}
Accessing Row based data in an efficient and maintainable manner - The Code Project - C# Database
int customerIDIndex = table.Columns.IndexOf("customerID");
int customerFirstNameIndex = table.Columns.IndexOf("firstName");
int customerLastNameIndex = table.Columns.IndexOf("lastName");
System.Diagnostics.Debug.Assert(customerIDIndex > -1,
"Database out of sync");
System.Diagnostics.Debug.Assert(customerFirstNameIndex > -1,
"Database out of sync");
System.Diagnostics.Debug.Assert(customerLastNameIndex > -1,
"Database out of sync");
foreach(DataRow row in table.Rows){
customer = new Customer();
customer.ID = (Int32)row[customerIDIndex];
customer.FirstName = row[customerFirstNameIndex].ToString();
customer.LastName = row[customerLastNameIndex].ToString();
}//end foreach
How to include a header on each page when printing a DataGrid - The Code Project - .NETfunction AddTHEAD(tableName)
{
var table = document.getElementById(tableName);
if(table != null)
{
var head = document.createElement("THEAD");
head.style.display = "table-header-group";
head.appendChild(table.rows[0]);
table.insertBefore(head, table.childNodes[0]);
}
}Update:Using SQL Server instead of Access files:I had problems with WindowsFormsParkingWindow and a lot of the references on the web pointed to this blog article. Unfortunately, the page was not available when I started searching for it. The only place I could find it was google cache, god bless their big googly hearts :) Therefore I am reprinting the content here, maybe it helps people:I somehow managed to add to one of my Visual Studio 2005 Web Projects a webservice that had the code written "inline" meaning the <%@ WebService Language="C#" Class="WService"%> tag, followed by the C# code. While Visual Studio has a decent Intellisense functionality in asmx files, ReSharper doesn't. So I felt the need to move the code into a codebehind file. You would think that adding the Codebehind="WService.amsx.cs" would be enough. No, it isn't! As the codebehind model for VS is to have the codebehind in a compiled dll, an error like "Cannot create type WService" will annoy the hell out of you. The solution is to add the cs file into the App_Code directory.I've tried compiling and using a dll from the net for a Pocket PC and, even if the compilation of the source worked, when trying to add it as a reference, I got an error and the dll would not show in the references. However, a lot of other errors occurred later on, as if the dll was still referenced. Reading the csdproj file directly, I noticed that the reference to the dll was there, but that every time the project was loaded, the same error occurred and the reference did not show. The only solution is to remove with a text editor the XML entry from the csdproj file.How to: Reference ASP.NET Master Page Content:Master.PropertyOrMember="RightHand";
Loading a Web User Control dynamically is rather easy: MyUserControl muc=(MyUserControl)Page.LoadControl("MyUserControl.ascx"); As a side note, I use this with AJAX, to load a user control, extract the rendered HTML and return it to be added javascriptmagically in a panel on the page.Yesterday I had this problem where I needed to access the Session object from a webcontrol. I used HttpContext.Current.Session, after checking is HttpContext.Current was null. Then I've encountered a problem where HttpContext.Current was NOT null, neither were the Application, Response, Request and Server child objects, but Session was null.Getting back to programming, I am starting a small, but premiere project for Palm. These devices seem to be the work of the devil. The particular model I am programming for is something with a resolution of 240x320, with 64MB storage AND memory and with a 300Mhz processor.This is a nice link about how to convert a UserControl to a WebControl.