[WinForm] Simple permission management for WinForm

[Abstract] this year, we have successively written fixed assets and low-value consumable products, purchased mold management, and the process management subsystems to be implemented. Each of them has a small program, and each time we build the environment. Package each time you deploy a small system. Simply implement a simple framework.

Permission management is modeled on your own collaborative work platform.

Table 1: menu management

CREATE TABLE [dbo].[WinForm_MenuInfo]([ID] [int] IDENTITY(1,1) NOT NULL,[NAME] [nvarchar](100) NOT NULL,[PARENTID] [int] NOT NULL,[FORMNAME] [nvarchar](200) NULL,[TYPE] [int] NULL,[SORTINDEX] [int] NULL, CONSTRAINT [PK_WinForm_MenuInfo] PRIMARY KEY CLUSTERED ([ID] ASC)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]) ON [PRIMARY]GOALTER TABLE [dbo].[WinForm_MenuInfo] ADD  CONSTRAINT [DF_WinForm_MenuInfo_PARENTID]  DEFAULT ((-1)) FOR [PARENTID]GOALTER TABLE [dbo].[WinForm_MenuInfo] ADD  CONSTRAINT [DF_WinForm_MenuInfo_TYPE]  DEFAULT ((0)) FOR [TYPE]GOALTER TABLE [dbo].[WinForm_MenuInfo] ADD  CONSTRAINT [DF_WinForm_MenuInfo_SORTINDEX]  DEFAULT ((0)) FOR [SORTINDEX]GO

Table 2: role management

CREATE TABLE [dbo].[WinForm_RoleInfo]([ID] [int] IDENTITY(1,1) NOT NULL,[NAME] [nvarchar](100) NOT NULL,[DESCRIPT] [nvarchar](500) NULL,[PARENTID] [int] NOT NULL, CONSTRAINT [PK_WinForm_RoleInfo] PRIMARY KEY CLUSTERED ([ID] ASC)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]) ON [PRIMARY]GO

Table 3: Role menu

CREATE TABLE [dbo].[WinForm_RoleMenu]([id] [int] IDENTITY(1,1) NOT NULL,[rid] [int] NOT NULL,[mid] [int] NOT NULL, CONSTRAINT [PK_WinForm_RoleMenu] PRIMARY KEY CLUSTERED ([id] ASC)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]) ON [PRIMARY]GO

Menu management:

Role authorization:

User role management

Key points:

How to load WINFORM?

Simple layout:

Top title

Tree menu on the left

The right side is TabContorl.

Using System; using System. collections. generic; using System. componentModel; using System. data; using System. data. sqlClient; using System. drawing; using System. linq; using System. text; using System. windows. forms; using ERPSystem. DBUtility; namespace ERPSystem {public partial class FrmMain: Form {public int userid; public FrmMain (int userid) {InitializeComponent (); this. userid = userid;} private void FrmM Ain_Load (object sender, EventArgs e) {this. icon = Icon. fromHandle (new Bitmap (imageList1.Images [2]). getHicon (); // clear the control // this. mainTabControl. tabPages. clear (); // The OwnerDrawFixed method indicates that the drawing size of the form is the same as this. mainTabControl. drawMode = TabDrawMode. ownerDrawFixed; this. mainTabControl. padding = new System. drawing. point (CLOSE_SIZE, CLOSE_SIZE); this. mainTabControl. drawItem + = new DrawItemEventHandler (this. mainT AbControl_DrawItem); this. mainTabControl. mouseDown + = new System. windows. forms. mouseEventHandler (this. mainTabControl_MouseDown); BindTree (); this. trvMeun. expandAll ();} const int CLOSE_SIZE = 10; // tabPage tag image Bitmap image = global: ERPSystem. properties. resources. close; // draw "X", that is, the Close button private void MainTabControl_DrawItem (object sender, DrawItemEventArgs e) {try {Rectangle myTabRect = this. mainTab Control. getTabRect (e. index); // Add the TabPage attribute e. graphics. drawString (this. mainTabControl. tabPages [e. index]. text, this. font, SystemBrushes. controlText, myTabRect. X + 2, myTabRect. Y + 2); // draw another rectangle box using (Pen p = new Pen (Color. white) {myTabRect. offset (myTabRect. width-(CLOSE_SIZE + 3), 2); myTabRect. width = CLOSE_SIZE; myTabRect. height = CLOSE_SIZE; e. graphics. drawRectangle (p, myTabRect);} // fill the rectangle Color recColor = e. State = DrawItemState. Selected? Color. white: Color. white; using (Brush B = new SolidBrush (recColor) {e. graphics. fillRectangle (B, myTabRect);} // draw the close Symbol using (Pen objpen = new Pen (Color. black )) {// ================================================= ============/// draw X /// "\" line // Point p1 = new Point (myTabRect. X + 3, myTabRect. Y + 3); // Point p2 = new Point (myTabRect. X + myTabRect. width-3, myTabRect. Y + myTabRect. height-3); // e. graphics. dr AwLine (objpen, p1, p2); /// "/" // Point p3 = new Point (myTabRect. X + 3, myTabRect. Y + myTabRect. height-3); // Point p4 = new Point (myTabRect. X + myTabRect. width-3, myTabRect. Y + 3); // e. graphics. drawLine (objpen, p3, p4 ); /// =================================================== ============/// use the image Bitmap bt = new Bitmap (image ); point p5 = new Point (myTabRect. x, 4); e. graphics. drawImage (bt, p5); // e. graphics. drawSt Ring (this. mainTabControl. tabPages [e. index]. text, this. font, objpen. brush, p5);} e. graphics. dispose ();} catch (Exception) {}} // disable the button function private void MainTabControl_MouseDown (object sender, MouseEventArgs e) {if (e. button = MouseButtons. left) {int x = e. x, y = e. y; // calculation close area Rectangle myTabRect = this. mainTabControl. getTabRect (this. mainTabControl. selectedIndex); myTabRect. offset (myTabRect. width -(CLOSE_SIZE + 3), 2); myTabRect. width = CLOSE_SIZE; myTabRect. height = CLOSE_SIZE; // If the mouse is in the area, close the tab bool isClose = x> myTabRect. X & x <myTabRect. right & y> myTabRect. Y & y <myTabRect. bottom; if (isClose = true) {this. mainTabControl. tabPages. remove (this. mainTabControl. selectedTab) ;}}/// <summary> // initialize the tree menu /// </summary> private void BindTree () {// customize the menu table, read/* DataTab from XML or database Le tblDatas = new DataTable ("Datas"); tblDatas. columns. add ("ID", Type. getType ("System. int32 "); tblDatas. columns. add ("Title", Type. getType ("System. string "); tblDatas. columns. add ("Name", Type. getType ("System. string "); tblDatas. columns. add ("ParentID", Type. getType ("System. int32 "); tblDatas. rows. add (new object [] {1, "System Management", "", 0}); tblDatas. rows. add (new object [] {2, "electronic process management", "", 0}); tblDatas. Rows. add (new object [] {3, "menu management", "Form1", 1}); tblDatas. rows. add (new object [] {4, "role management", "Form2", 1}); tblDatas. rows. add (new object [] {5, "user authorization", "Form2", 1}); */string strRid = "select WF_RoleId from users where id =" + userid; string rid = string. empty; using (SqlDataReader dr = SqlHelper. executeReader (SqlHelper. conn, CommandType. text, strRid) {if (dr. read () {rid = dr ["WF_RoleId"]. toSt Ring () ;}} string strSql = "select * from dbo. winForm_MenuInfo where ID in (select distinct mid from WinForm_RoleMenu where rid in ("+ rid +") order by sortindex asc "; DataTable tblDatas = SqlHelper. executeDataset (SqlHelper. conn, CommandType. text, strSql ). tables [0]; initParent (tblDatas);} // initialize the root node private void initParent (DataTable dt) {DataRow [] drs = dt. select ("PARENTID =-1"); foreach (DataRo W dr in drs) {TreeNode tn = new TreeNode (); tn. text = dr ["NAME"]. toString (); tn. toolTipText = dr ["FORMNAME"]. toString (); tn. tag = dr ["ID"]. toString (); // tn. imageIndex = 1; this. trvMeun. nodes. add (tn); // initialize the subnode initLeaf (dt, tn) ;}}// initialize the subnode private void initLeaf (DataTable dt, TreeNode tn) {DataRow [] drs = dt. select ("PARENTID =" + tn. tag as string); foreach (DataRow dr in drs) {TreeNode ctn = ne W TreeNode (); ctn. text = dr ["NAME"]. toString (); ctn. toolTipText = dr ["FORMNAME"]. toString (); ctn. tag = dr ["ID"]. toString (); // tn. imageIndex = 1; tn. nodes. add (ctn); // recursive call, continuous loop to leaf node initLeaf (dt, ctn); }}// double-click to close Tab private void MainTabControl_DoubleClick (object sender, EventArgs e) {// Point pt = new Point (e. x, e. y); if (MainTabControl. tabCount> 0) {if (MainTabControl. tabCount> 0) {this. mainTab Control. tabPages. remove (MainTabControl. selectedTab );}}} /// <summary> /// double-click the node to open the form. /// </summary> /// <param name = "sender"> </param> /// <param name = "e"> </param> private void trvMeun_NodeMouseDoubleClick (object sender, treeNodeMouseClickEventArgs e) {TreeNode node = e. node; if (trvMeun. selectedNode. parent = null) {} else {if (! FindTabControl (node. text. trim () {ERPSystem. moduleClass myfrm = new ModuleClass (); if (myfrm. show_Form (node. text. trim (), node. toolTipText. toString (). trim ())! = Null) {this. mainTabControl. tabPages. add (myfrm. show_Form (node. text. trim (), node. toolTipText. toString (). trim (); this. mainTabControl. selectedIndex = this. mainTabControl. tabPages. count-1;} else {// MessageBox. show ("still under construction ...! "," ERROR ");}}}} /// <summary> // check whether a tab with the same name exists in the tab set. // </summary> private bool FindTabControl (string tabName) {bool flag = false; foreach (TabPage item in MainTabControl. tabPages) {if (item. text = tabName) {flag = true ;}} return flag ;}}}

ModuleClass. cs

Using System; using System. collections. generic; using System. linq; using System. text; using System. windows. forms; using System. reflection; using System. runtime. remoting; namespace ERPSystem {class ModuleClass {public TabPage Show_Form (string FormTitle, string FormName) {string strNameSpace = "ERPSystem"; if (FormName! = "") {ObjectHandle obj = Activator. createInstance (null, strNameSpace + ". "+ FormName); // obj. unwrap returns the encapsulated object Form frm = (Form) obj. unwrap (); return initFrom (frm, FormTitle);} else {return null;}/* switch (FormTitle) {case "menu management": string formname = "Form1 "; case "database disk usage": ERPSystem. form1 frm2 = new ERPSystem. form1 (); return initFrom (frm2, FormTitle); case "IO": ERPSystem. form1 frm3 = new ERPSystem. form1 (); return initFrom (frm3, FormTitle); case "job status": ERPSystem. form1 frm4 = new ERPSystem. form1 (); return initFrom (frm4, FormTitle); case "memory usage": ERPSystem. form1 frm5 = new ERPSystem. form1 (); return initFrom (frm5, FormTitle); default: return null ;} * //} /// <summary> /// the form is dynamically loaded to the tab /// </summary> /// <param name = "frm"> </param> /// <param name = "Name"> </param> /// <returns> </returns> Private TabPage initFrom (Form frm, String Name) {if (! String. isNullOrEmpty (Name) {frm. text = Name; frm. topLevel = false; TabPage tp = new TabPage (Name); frm. formBorderStyle = FormBorderStyle. none; tp. controls. add (frm); frm. dock = DockStyle. fill; frm. show (); return tp;} else {return null ;}}}}

Test: