editroles.aspx.cs

一个ASP.NET下的中文内容管理和社区系统

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace ASPNET.StarterKit.Communities.Admin.EditUsers
{
	/// <summary>
	/// Summary description for EditRoles.
	/// </summary>
	public class EditRoles : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid RoleList;
		protected System.Web.UI.WebControls.TextBox txtNewRole;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.TextBox txtDescription;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.Button btnAdd;
		protected System.Web.UI.WebControls.Panel pnlAddRole;

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.RoleList.CancelCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.RoleList_CancelCommand);
			this.RoleList.EditCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.RoleList_EditCommand);
			this.RoleList.UpdateCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.RoleList_UpdateCommand);
			this.RoleList.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.RoleList_DeleteCommand);
			this.RoleList.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.RoleList_ItemDataBound);
			this.btnAdd.Click += new System.EventHandler(this.btnAdd_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion


		//*******************************************************
		//
		// When page first loads, bind the list
		// of roles to the DataGrid.
		//
		//*******************************************************
	    
		void Page_Load(object sender, System.EventArgs e) {
			if (!Page.IsPostBack) {
				BindRoles();
			}
		}
	    
		//*******************************************************
		//
		// Perform binding to the DataGrid.
		//
		//*******************************************************
	    
		void BindRoles() {
			RoleList.DataSource = UserUtility.GetAllUserRoles();
			RoleList.DataKeyField = "Role_RoleName";
			RoleList.DataBind();
		}
	    
	    
		//*******************************************************
		//
		// We don't want the delete link to appear
		// next to system roles, so we clear the cell
		// containing the delete link for system roles.
		//
		//*******************************************************
	    
		void RoleList_ItemDataBound(Object s, DataGridItemEventArgs e) {
			if (e.Item.DataItem == null) return;
			bool isSystem = (bool)DataBinder.Eval(e.Item.DataItem, "Role_IsSystem");
			if (isSystem) {
				e.Item.Cells[3].Controls.Clear();
				e.Item.Cells[4].Controls.Clear();
			}
		}
	    
	    
		//*******************************************************
		//
		// A Role has been selected for editing.
		//
		//*******************************************************
	    
		void RoleList_EditCommand(Object s, DataGridCommandEventArgs e) {
			// Select row for editing
			RoleList.EditItemIndex = e.Item.ItemIndex;
			BindRoles();
	    
			// Hide add role panel
			pnlAddRole.Visible = false;
		}
	    
		//*******************************************************
		//
		// Editing has been canceled on a role.
		//
		//*******************************************************
	    
		void RoleList_CancelCommand(Object s, DataGridCommandEventArgs e) {
			// UnSelect row for editing
			RoleList.EditItemIndex = -1;
			BindRoles();
	    
			// Show add role panel
			pnlAddRole.Visible = true;
		}
	    
	    
		//*******************************************************
		//
		// Update the role in the database.
		//
		//*******************************************************
	    
		void RoleList_UpdateCommand(Object s, DataGridCommandEventArgs e) {
			string originalRoleName = (string)RoleList.DataKeys[e.Item.ItemIndex];
			string newRoleName = ((TextBox)e.Item.Cells[0].Controls[0]).Text;
			string roleDescription = ((TextBox)e.Item.Cells[1].Controls[0]).Text;
	    
			// Update Roles
			if (newRoleName.Length > 0)
				UserUtility.UpdateRole(originalRoleName, newRoleName, roleDescription);
	    
			// UnSelect row for editing
			RoleList.EditItemIndex = -1;
			BindRoles();
	    
			// Show add role panel
			pnlAddRole.Visible = true;
		}
	    
	    
		//*******************************************************
		//
		// Delete a role from the database.
		//
		//*******************************************************
	    
		void RoleList_DeleteCommand(Object s, DataGridCommandEventArgs e) {
			string roleName = (string)RoleList.DataKeys[e.Item.ItemIndex];
	    
			// Delete Role
			UserUtility.DeleteRole(roleName);
	    
			// UnSelect row for editing
			RoleList.EditItemIndex = -1;
			BindRoles();
	    
			// Show add role panel
			pnlAddRole.Visible = true;
		}
	    
	    
		//*******************************************************
		//
		// Add a new role to the database.
		//
		//*******************************************************
	    
		void btnAdd_Click(Object s, EventArgs e) {
			UserUtility.AddRole(txtNewRole.Text,txtDescription.Text);
			txtNewRole.Text = "";
			txtDescription.Text = "";
			BindRoles();
		}

		private void Page_Load()
		{
		
		}



	}
}