managepermissions.aspx

《圣殿祭司的ASP.NET 2.0开发详解——使用C#》光盘内容.包含了书籍所含的源代码.非常经典的一本asp.net2.0的书籍

    ArrayList rules = Rules;
    int selectedRule = SelectedRule;
    // // Response.Write(selectedRule);

    if(selectedRule >= rules.Count - ParentRuleCount) {
        return;
    }

    AuthorizationRule rule = (AuthorizationRule)rules[selectedRule];
    rules.RemoveAt(selectedRule);
    rules.Insert(selectedRule + 1, rule);
    UpdateRules();
    BindGrid();
    dataGrid.SelectedIndex = selectedRule + 1;
    UpdateRowColors(dataGrid, dataGrid.Rows[selectedRule + 1]);
    SelectedRule = selectedRule + 1;
    UpdateUpDownButtons();
}

private void MoveRuleUp(object sender, EventArgs e) {
    ArrayList rules = Rules;
    int selectedRule = SelectedRule;

    if(selectedRule == 0) {
        return;
    }

    AuthorizationRule rule = (AuthorizationRule)rules[selectedRule];
    rules.RemoveAt(selectedRule);
    rules.Insert(selectedRule - 1, rule);
    UpdateRules();
    BindGrid();
    dataGrid.SelectedIndex = selectedRule - 1;
    UpdateRowColors(dataGrid, dataGrid.Rows[selectedRule - 1]);
    SelectedRule = selectedRule - 1;
    UpdateUpDownButtons();
}

private string GetDirectory(string path) {
    if (path == null) {
        return null;
    }

    if (path.LastIndexOf('/') == -1) {
        return "/";
    }

    return path.Substring(path.LastIndexOf('/') + 1);
}

private void Page_Init() {
    if(!IsPostBack) {
        // Note: treenodes persist when added in Init, before loadViewState
        TreeNode n = new TreeNode(GetDirectory(ApplicationPath), ApplicationPath);
        tv.Nodes.Add(n);
        n.Selected = true;

        if (String.IsNullOrEmpty(CurrentPath)) {
            CurrentPath = ApplicationPath;
        }

        PopulateChildren(n, CurrentPath);
    }
    dataGrid.HeaderStyle.HorizontalAlign = DirectionalityHorizontalAlign;
}

private void Page_Load() {
    if (!IsPostBack) {
        BindGrid();
    }

    HighlightSelectedNode(tv.Nodes[0], CurrentPath);
}

private void PopulateChildren(TreeNode parent, string selectNodeValue) {
    if (parent.ChildNodes.Count == 0) {
        VirtualDirectory vdir = GetVirtualDirectory(parent.Value);
        foreach (VirtualDirectory childVdir in vdir.Directories) {
            string childValue = parent.Value + "/" + childVdir.Name;
            TreeNode newNode = new TreeNode(childVdir.Name, childValue);
            if (selectNodeValue != null && childValue == selectNodeValue) {
                //newNode.Selected = true;
                newNode.SelectAction = TreeNodeSelectAction.Select;
            }
            parent.ChildNodes.Add(newNode);
        }
    }
}

private bool HighlightSelectedNode(TreeNode node, string path) {
    bool foundIt = false;
    foreach (TreeNode childNode in node.ChildNodes) {
        if (childNode.Value == path) {
            childNode.Selected = true;
            foundIt = true;
            break;
        }
    }
    return foundIt;
}

protected void RedirectToCreatePermission(object sender, EventArgs e) {
    Response.Redirect("createPermission.aspx");
}

public void SelectClick(object sender, EventArgs e) {
    LinkButton button = (LinkButton)sender;

    GridViewRow row = (GridViewRow)button.Parent.Parent;
    SelectedRule = row.RowIndex;
    dataGrid.SelectedIndex = SelectedRule;

    UpdateRowColors(dataGrid, row);
    UpdateUpDownButtons();
}

private void SetItemColorRecursive(Control c, Color col) {
    foreach(Control child in c.Controls) {
        LinkButton button = child as LinkButton;
        if (button != null) {
            button.ForeColor = col;
        }
        Label label = child as Label;
        if (label != null) {
            label.ForeColor = col;
        }
        SetItemColorRecursive(child, col);
    }
}

protected void TreeNodeExpanded(Object sender, TreeNodeEventArgs e) {
    foreach(TreeNode child in e.Node.ChildNodes) {
        PopulateChildren(child, CurrentPath);
    }
}

protected void TreeNodeSelected(object sender, EventArgs e) {
    CurrentPath = ((TreeView)sender).SelectedNode.Value;
    dataGrid.SelectedIndex = -1;
    BindGrid();
}

public void UpdateRowColors(Control dataGrid, Control item) {
    if (item == null) {
        // unexpected condition -exit gracefully
        return;
    }

    string prevItemID = (string)Session[SELECTED_ITEM];
    if (prevItemID != null) {
        GridViewRow prevItem = (GridViewRow) ((GridView)dataGrid).FindControl(prevItemID);
        if (prevItem != null) {
            // REVIEW
            SetItemColorRecursive(prevItem, Color.Black);
            // prevButton.ForeColor = Color.Black;
        }
    }

    SetItemColorRecursive(item, Color.White);
    // Review: best practice for a naming container inside a user control.
    string id = item.UniqueID;
    int i = id.IndexOf(((GridView)dataGrid).ID);
    id = id.Substring(i);
    i = id.IndexOf("$");
    id = id.Substring(i + 1);
    Session[SELECTED_ITEM] = id ;
}

private void UpdateRules() {
    Configuration config = OpenWebConfiguration(CurrentPath, true);
    AuthorizationSection auth = (AuthorizationSection) config.GetSection("system.web/authorization");
    auth.Rules.Clear();
    ArrayList rules = Rules;
    foreach (AuthorizationRule rule in rules) {
        // // Response.Write("rule <br/>");
        auth.Rules.Add(rule);
    }

    // auth.IsModified = true;
    SaveConfig(config);
}

private void UpdateUpDownButtons() {
    int index = SelectedRule;
    moveDown.Enabled = (index < Rules.Count - ParentRuleCount - 1);
    moveUp.Enabled = (index > 0); 

}
</script>


<asp:content runat="server" contentplaceholderid="buttons">
<asp:button ValidationGroup="none" runat="server" id="button1" text="<%$ Resources:Done %>" onclick="ReturnToPreviousPage"/>
</asp:content>

<asp:content runat="server" contentplaceholderid="titleBar">
<asp:literal runat="server" text="<%$ Resources:ManageAccessRules %>" />
</asp:content>

<asp:content runat="server" contentplaceholderid="content" >
<asp:literal runat="server" text="<%$ Resources:Instructions %>" />
<table width="100%">
    <tr>
        <td width="80%">
            <table cellspacing="0" width="100%" cellpadding="4" rules="none" bordercolor="#CCDDEF" border="1" style="border-color:#CCDDEF;border-style:None;border-collapse:collapse;">
                <tr class="callOutStyle">
                    <td colspan="3"><asp:literal runat="server" text="<%$ Resources:ManageAccessRules %>"/></td>
                </tr>
                <tr align="=<% DirectionalityHorizontalAlign.ToString(); %>">
                    <td valign="top" width="200px" align="=<% DirectionalityHorizontalAlign.ToString(); %>">

                                    <asp:panel runat="server" id="panel1" scrollbars="auto" height="150px" width="200px" cssclass="bodyTextNoPadding">
                                        <asp:treeView runat="server" id="tv" onSelectedNodeChanged="TreeNodeSelected" onTreeNodeExpanded="TreeNodeExpanded" nodeStyle-cssClass="bodyTextLowPadding" >
                                            <RootNodeStyle ImageUrl="../../images/folder.gif" />
                                            <ParentNodeStyle ImageUrl="../../images/folder.gif" />
                                            <LeafNodeStyle ImageUrl="../../images/folder.gif" />
                                            <nodestyle cssClass="bodyTextLowPadding"/>
                                            <selectedNodeStyle cssClass="bodyTextLowPaddingSelected"/>
                                        </asp:treeView>
                                    </asp:panel>


                    </td>
                    <td valign="top">
                        <asp:gridview runat="server" id="dataGrid" bordercolor="#CCDDEF" allowsorting="true" gridlines="Horizontal"
                            borderstyle="None" cellpadding="4" autogeneratecolumns="False" onrowdatabound="ItemDataBound" width="100%" UseAccessibleHeader="true">

                            <rowstyle cssclass="gridRowStyle" />
                            <alternatingrowstyle cssclass="gridAlternatingRowStyle" />
                            <headerstyle cssclass="callOutStyle" font-bold="true" />
                            <selectedrowstyle cssclass="gridSelectedRowStyle"/>
                            <pagerstyle forecolor="#000000" backcolor="#EEEEEE"/>
                            <pagersettings mode="Numeric"/>

                            <columns>
                                <asp:templatefield headertext="<%$ Resources:Select%>" visible="false">
                                    <itemtemplate>
                                        <asp:linkbutton runat="server" commandname="Select" forecolor='black' onclick="SelectClick" text=""/>
                                    </itemtemplate>
                                </asp:templatefield>

                                <asp:templatefield headertext="<%$ Resources:Permission %>">
                                    <itemtemplate>
                                        <asp:label runat="server" id="select" enabled="<%# IsEntryDeleteable(((GridViewRow) Container).RowIndex) %>" text="<%#GetAction((AuthorizationRule)Container.DataItem)%>"/>
                                    </itemtemplate>
                                </asp:templatefield>

                                <asp:templatefield headertext="<%$ Resources:UsersAndRoles %>">
                                    <itemtemplate>
                                        <asp:linkbutton runat="server" id="selectme" enabled="<%# IsEntryDeleteable(((GridViewRow) Container).RowIndex) %>" forecolor="black" onclick="SelectClick" text="<%#GetUsersAndRoles((AuthorizationRule)Container.DataItem, true)%>"/>
                                    </itemtemplate>
                                </asp:templatefield>

                                <asp:templatefield headertext="<%$ Resources:Delete %>">
                                    <itemtemplate>
                                        <asp:linkbutton runat="server" id="delete" enabled="<%# IsEntryDeleteable(((GridViewRow) Container).RowIndex) %>" forecolor='black' onClick="DeleteRule" text="<%$ Resources:Delete %>" toolTip='<%# GetToolTip("Delete",GetUsersAndRoles((AuthorizationRule)Container.DataItem, false)) %>'/>
                                    </itemtemplate>
                                </asp:templatefield>
                            </columns>
                        </asp:gridview>

                        <asp:linkButton runat="server" id="linkButton1" cssClass="bodyTextNoPadding" text="<%$ Resources:AddNewAccessRule %>" onClick="RedirectToCreatePermission"/>
                    </td>
                    <td valign="top">
                        <asp:button runat="server" id="moveUp" text="<%$ Resources:MoveUp %>" enabled="false" onClick="MoveRuleUp" width="110px"/>
                        <br/>
                        <asp:button runat="server" id="moveDown" text="<%$ Resources:MoveDown %>" enabled="false" onClick="MoveRuleDown" width="110px"/>
                    </td>
                </tr>
            </table>
        </td>
    </tr>
</table>
</asp:content>

<%-- Confirmation Dialog --%>
<asp:content runat="server" contentplaceholderid="dialogTitle">
<asp:literal runat="server" text="<%$ Resources:RuleManagement %>" />
</asp:content>

<asp:content runat="server" contentplaceholderid="dialogContent">

    <img src="../../Images/alert_lrg.gif"/>
    <asp:literal runat="server" text="<%$ Resources:AreYouSure %>" /> "<asp:Label runat=server id="RuleDescription" />"?
</asp:content>

<asp:content runat="server" contentplaceholderid="dialogBottomLeftButton">
    <asp:Button runat="server" OnClick="Yes_Click" Text="<%$ Resources:Yes %>" width="100"/>
</asp:content>

<asp:content runat="server" contentplaceholderid="dialogBottomRightButton">
    <asp:Button runat="server" OnClick="No_Click" Text="<%$ Resources:No %>" width="100"/>
</asp:content>