ASP.NET-可以创建一个DetailsView，仅具有特定角色的用户将某些字段视为可编辑的吗？

Question

For example lets say I want only admins to be able to see and edit CustomerID in details view, moderators can see this value but it is not editable, and regular users cannot even see it. Is this possible?

Answer 1

Here you go. I tried many google searches and no one could clearly explain it. You have to perform this on the PreRender Event. Please not that this code snippet uses the Membership Provider in .net to check if a user is in a role. If you have your own custom tables you will have to write a custom function that checks if a user is in one of your custom roles. Also please not that this solution is using ItemTemplates not BoundFields.

protected void detailsView_OnPreRender(object sender, EventArgs e)
    {
        if (dvPackage.CurrentMode == DetailsViewMode.Edit)
        {
           //disables/enables a the dropdown for Process Status if the user has the RLIST role
           TextBox txtCustomID = (TextBox)Utilities.FindControlRecursive(dvPackage, "txtCustomID ");
           txtCustomID.Visible = false;
           if (User.IsInRole("Admin"))
           {
              txtCustomID.Visible = true;

         }
     }

Here's the find control recursive funciton. Free of charge.

public static Control FindControlRecursive(Control ctlRoot, string sControlId)
    {
        // if this control is the one we are looking for, break from the recursion    
        // and return the control.    
        if (ctlRoot.ID == sControlId)
        {
            return ctlRoot;
        }
        // loop the child controls of this parent control and call recursively.    
        foreach (Control ctl in ctlRoot.Controls)
        {
            Control ctlFound = FindControlRecursive(ctl, sControlId);
            // if we found the control, return it.        
            if (ctlFound != null)
            {
                return ctlFound;
            }
        }// we never found the control so just return null.    
        return null;
    }

Answer 2

我建议Web用户控件或多视图根据用户角色来处理切换视图。