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Toolbox: User Interfaces, Podcasts, Object-Relational Mappings and More

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

This column covers common user interface groupings, configuring NHibernate using C#, and a look at interesting books and podcasts.

Scott Mitchell

MSDN Magazine October 2009

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How to add user controls into toolbox?

Hello, I have created a user control with ComboBox  & TreeView together. I want to use this control as a component so that I can drag and drop this control to other windows form! So what are the steps to get user control into toolbox? THANKS!

How to check effective permissions for a user or group for a SQL server object or whole server?

Guys, How do I see effective permissions for a user or group for a SQL server object or whole server? For example, a user is not listed in security/logins, but he is a member of few groups and some of them have assigned permissions on SQL server (again either directly or through membership in other groups) Even when I select an object (a table), check properties/permission – it doesn’t let me select any principal, except those listed on security/logins… Anyway, what is the right way to see effective permissions for a user or group? Sorry for asking such a simple question, I’ve searched but found nothing relevant.

Null Reference Exception was not handled by user Object Reference not set to instance of an object

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Security.Principal;using System.Data;using System.Data.SqlClient;using System.Windows;using System.Collections; public partial class Default2 : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {     }    private bool tableCopied = false;    private DataTable originalDataTable;     protected void GridView2_RowDataBound(object sender, GridViewRowEventArgs e)    {         if (e.Row.RowType == DataControlRowType.DataRow)        {            //string sValue = e.Row.Cells[3].Text;             if (!tableCopied)            {                originalDataTable = ((System.Data.DataRowView)e.Row.DataItem).Row.Table.Copy();                ViewState["originalDataTable"] = originalDataTable;      &nbs

Object Cache: The super user account utilized by the cache is not configured. This can increase the

Hi im having the following error in the windows event viewer Object Cache: The super user account utilized by the cache is not configured. This can increase the number of cache misses, which causes the page requests to consume unneccesary system resources.  To configure the account use the following command 'stsadm -o setproperty -propertyname portalsuperuseraccount -propertyvalue account -url webappurl'. The account should be any account that has Full Control access to the SharePoint databases but is not an application pool account.  Additional Data:  Current default super user account: SHAREPOINT\system after this the computer starts working slowly and slowly The account that the log shows is the aplication pool account of the first site collection I created   I followed the instrucctions in this link: http://technet.microsoft.com/en-us/library/ff758656.aspx I set new accounts to the superuser and super reader I also tried using the same account that the first error showed has superuser and super reader However  I always get this error when I try to access the Site Collection after performing this The user does not exist or is not unique.<nativehr>0x81020054</nativehr><nativestack></nativestack> In the sharepoint log I get this same error plus this Could not get token super user token, reverting to system account.&

Object Cache set with Portal Super User accounts. Access denied to site.

I have the same issue on multiple farms. In this example i'll outline this problem for a three tier farm. SharePoint web server SharePoint Application server (hosts central admin) Sql server After installation and configuration i have created two web applications (claims based auth with NTLM). https://portal.contoso.com https://mysite.contoso.com The client connects on the URLs to the web server (1st tier). All is working correctly and they can access the portal and their mysite. The log file keeps reporting that i need to configure the user accounts for the Object Chache. So, i looked up the required steps and executed these conform mcrosoft guidelines (http://technet.microsoft.com/en-us/library/ff758656.aspx) All the steps run seccesfully. But when i connect to the URL i now get an access denied (even with the administrator who is site collection administrator) In the log file i get the following to lines when i connect to the site. Unknown SPRequest error occurred. More information: 0x80070002 Unknown SPRequest error occurred. More information: 0x80070005 I have exact the same issue on two other farms. Marc

Problem with user controls and the toolbox

Im building a control library, its just a library that builds to a dll with a bunch of user controls. But So far I can only get "user controls" to be loaded into the toolbox in a separate project. Many on my user controls need only be derived from a specific control and I often find using a user control is unnecessary for the control. So the question is, how can I get a control that is not derived from the user control class, to show in the toolbox, in a separate project? Another thing I would like to decorate my controls with an icon for the toolbox. I tried [ToolboxBitmap("Filename")] at the top of the class but it did not work for me.AbleOpus.ath.cx

OPENQUERY Error when calling usp - object has no columns or the current user does not have permissio

Hi Guys, I need to get data using a usp, but getting error: Cannot process the object "EXEC BKS..uspPayments @paymentTypeCode1 = '1', @paymentTypeCode2 = '2', @paymentTypeCode3 = '3';". The OLE DB provider "SQLNCLI" for linked server "SERVER" indicates that either the object has no columns or the current user does not have permissions on that object. I am trying the script below: use myDB; select * from OPENQUERY([SERVER], 'EXEC myDB..uspPayments @paymentTypeCode1 = ''1'', @paymentTypeCode2 = ''2'', @paymentTypeCode3 = ''3''; ') Thanks in advance for any help. Everything is possible, impossible just takes longer

How to user LoadControl(Type type, object[] para) method?



protected void Page_Load(object sender, EventArgs e)
            // This is NOT working. I dont see user control on page
            Type type = Type.GetType("TestProject.UserControls.Gender");                
            Control uc = Page.LoadControl(type,null);            

            //This is working. I can see user control on page
            Control uc1 =  Page.LoadControl("~/UserControls/Gender.ascx");            

 Im trying to load User Control dynamically using LoadControl(Type type, object[] para) method but its not working. I do not get any exception but i dont see user control render on the page. I have a Default parameterless construction in my user control and i see its get executed when i put break point there. but i dont see user control rendered on my page.

If i use OverLoaded method LoadControl(string VirtualPath) then it works fine.


How to access label object in a user control


I thought I did something like the following inorder to find the labels in a user object but when I revisited it, it did not work.  Any ideas???




using System.Collections.Generic;







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