Code Snippets

Initializing a RichTextBox

If you want initial formatted text in a RichTextBox, we have found the following to work very well:

1. Write the text in word and save as an rtf file in the resources subdirectory of your project.
2. Open the file in Write and then save it. This reduces the file size a LOT.
3. Add each file to the project as an embedded resource.
4. Load each as follows:

protected void SetHelpPane(string filename)
{
using (Stream stream =
GetType().Assembly.GetManifestResourceStream("WindwardRePortalSystemSetup.Resources." + filename))
{
if (stream != null)
using (StreamReader sr = new StreamReader(stream, Encoding.ASCII))
{
StringBuilder sb = new StringBuilder();
string line;
while ((line = sr.ReadLine()) != null)
sb.Append(line + "\n");
rtfControl.Rtf = sb.ToString();
}
}
}

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ASP.NET 2.0 event order

You would think this list exists but I can’t find it anywhere. I think this is correct and lists all events. Please comment if I missed anything.

Global.asax Application_Start (only once)
Global.asax Application_Init (initialize for app here – can be called
multiple times)

BeginRequest
AuthenticateRequest
PostAuthenticateRequest
AuthorizeRequest
PostAuthorizeRequest
ResolveRequestCache
PostResolveRequestCache
After the PostResolveRequestCache event and before the PostMapRequestHandler
event, an event handler (a page corresponding to the request URL) is created.
PostMapRequestHandler
AcquireRequestState
Global.asax Session_OnStart (if needed)
PostAcquireRequestState
PreRequestHandlerExecute
The event handler is executed.
PostRequestHandlerExecute
ReleaseRequestState
PostReleaseRequestState
After the PostReleaseRequestState event, response filters, if any, filter
the output.
UpdateRequestCache
PostUpdateRequestCache
EndRequest (always called)

Global.asax Session_OnEnd (on timeout – always after all of the above)

Global.asax Application_Dispose (called once for each Application_Init)
Global.asax Application_End (only once)

Do you find this useful? If so please check out Windward Reports.

ButtonImageField

This control works, but I have a feeling it could be implemented better. I'm still learning all the details of web controls. So any suggestions - please fire away.

• We have a grid where we want a button, not text, for a column in the grid.
• This is a button that will execute a data command (like Delete).
• We want it to be a data bound control to keep things simpler in the aspx file.
• We have 4 bitmaps - one each for normal, OnMouseOver, OnClick, and a bitmap we use if the link is disabled.

The attached code is the web control. One interesting item I found implementing this is that there seems to be a single instance of the ButtonImageField class implemented for the column, reused for each row. So you cannot have per-row variables in this class. Instead you must operate on the ImageButton object it creates and puts in the DataControlFieldCell.Controls[0].

To disable the control, you need to do:

protected void GlobalDatasourceView_RowDataBound(object sender, GridViewRowEventArgs

e) {

if (some logic) {
DataControlFieldCell dcfc = e.Row.Cells[1] as DataControlFieldCell;
ButtonLinkField blf = dcfc.ContainingField as ButtonLinkField;
blf.Enable(false, dcfc.Controls[0] as HyperLink, "cannot edit this {0}");
}
}

Webcontrol here: Download ButtonImageField.cs