Full Edit WebGrid Control LrcGrid (3) - Overall Structure
resource:
Lrcgrid uses two reference files: a CSS style table file myfsheet.css, a JS script library file Updarray_lrc.js.
The style table file applied to the text box is stored in the text box in different modes (browsing, editing, focus).
Hidden (Browse) Style:
.lrc_txt_hid {border-style: none; width: 95; Background: URL (images / txt_back.gif);}
2. Edit the style:
.lrc_txt_show {border-style: groove; Background-color: #ffffff; width: 95;
3. Focus style:
.lrc_txt_edit {border-width: medium; border-style: groove; font-weight: bolder; background-color: yellow; width: 95;
Script Base: Contains a function of the control client operation. include:
Switch the table to the edit mode: chGEDITROW (RowIndex, Tab) ()
Switch the table column to the edit mode: ChGedit (ColIndex, Tab)
SQL statement in the client constructor update the database: Buildsql (TabName)
Add new recorded functions: addrow (tab)
Remove the newly added line of function: Removerow (Tab):
The total code will be posted later if it is too long.
LrcGrid class structure:
Lrcgrid contains three classes and an enumeration
VirtualRecordcount Class: Record Paging Information PageChangeDeventargs Class: Inherited from Eventargs Converted Event Pagerstyle Enumeration: Sub-navigation strips Enumerate LrcGrid class: Inherited from System.Web.ui.WebControls.Table, implement the InamingContainer interface.
The first few is relatively simple, I put the code directly.
#Region VirtualRecordCount Class records the class of page information
Public Class VirtualRecordcount
{
Public int recordcount;
Public int pagecount;
Public int recordsinlastpage;
}
#ndregion
#REGON Pagerstyle Enum Paging Navigation Bar Form Enumeration
Public Enum Pagerstyle
{
Nextprev,
NumericPages
}
#ndregion
#REGON PageChangeDeventArgs Class Change Event Class
Public Class PageChangeDeventArgs: Eventargs
{
Public Int OldPageIndex;
Public int newpageindex;
}
#ndregion
The LrcGrid class is more complicated, 1000, the general structure is as follows (all source code will be posted in the following chapter!):
[
ToolboxData ("<{0}: lrcgrid runat = server> "),
DefaultProperty ("Selsql")
]
Public class lrcgrid: system.web.ui.webcontrols.table, inamingcontainer
{
Public lrcgrid (): base () {......}
#Region private variable
Private ......
#ndregion
#Region and paging related private variables
Private ......
#ndregion
#Region Public property
///
/// Foreign key indication
///
[
Category ("key",
Description ("Foreign Key. Format: This Table Column Name | Foreign key column name | Foreign key column name to display | Foreign key table name, .....")
]
Public String Fkcol
{
Get {return _fkcol;}
Set {_fkcol = value;}
}
......
#ndregion
#Region and page-related public members
#ndregion
#Region public method reconstruction
///
/// Reconnect control
///
Public void rebuild () {...}
#ndregion
#REGON override process
Protected Override Void CreateChildControls ()
{this.rebuild ();
Protected Override Void OnPrender (Eventargs E) {...}
#ndregion
#Region Sort
Private void LK_COMMAND (Object Sender, CommandEventAndeventAndeventAndArgs E) {...
#ndregion
#Region Creating a title line
Private void Buildtitle () {...}
#ndregion
#region Create a data line
Private void buildcol () {......
#ndregion
#Region Creating actions
Private void buildoper () {......
#ndregion
#REGON initialization data set
Private void initdataset () {......
#ndregion
#REGON Judgment is the editorial column
Private Bool Iseditcol (INT I) {...}
#ndregion
#REGON Judgment is the foreign key
Private bool isfkcol (int II) {......}
#ndregion
#Region Return to the Exterior Drop List
Protected DropdownList fklist (int i, string soldage) {.....}
#ndregion
#Region Submit Data, Update Database
Private void lrcbtn_sub_click (Object Sender, Eventargs E) {...}
#ndregion
#Region Delete one
Private void Lkdelone_Command (Object Sender, CommandEventAndAndeventargs E) {...}
#ndregion
#Region all delete
Private void LKDEL_COMMAND (Object Sender, CommandEventAndAndeentargs E) {...}
#ndregion
#REGION constructor delete statement
Private string builddelsql (int index) {...}
#ndregion
#REGION update database
Private int execsql (String SQL) {......
#ndregion
#Region paging related operations
Private Void BuildnextPrevui (TableCell Cell) {......} Private Void BuildNumericPageSui (TableCell Cell)
Private Void BuildcurrentPage (Tablecell Cell)
......
#ndregion
}
Because time rush, implementation is the primary purpose, the code has not been optimized, the structure is not very good, there will be time to do it later!
