ScriptManager.RegisterStartupScript and the RadAjaxPanel

Tags

RadAjaxPanel

Most time you need to call a JavaScript function from code behind like exporting a dataset to excel by clicking button.

Response.Write("<script language='javascript'> window.open('http://website/folder/newdocument.pdf'); </script>")

or this (assuming a Literal control called ltlOpenPdf):

ltlOpenPdf.Text = "<script language=""javascript"">window.open('http://website/folder/newdocument.pdf');</script>"

However, the Response.Write is forbidden in Ajax and produces an error, while the Literal apparently did nothing at all.

After a few try, I found below code works well in RadAjaxPanel.

JS in html page

function openExportWindow() {
            window.open('ExportForm.aspx');
        }

Code in your button click
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, “Courier New”, courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

ScriptManager.RegisterClientScriptBlock(this.Page, this.Page.GetType(), "Export", "openExportWindow()", true);

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, “Courier New”, courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

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Setup project error: Unable to update the dependencies of the project

Tags

Setup Projects

I have consistently used this method to get around this bug instead of rebuilding my setup projects. This applies to both merge module projects AND setup projects. Manually remove the data in the Hierarchy and Files section of the project files.

1. Open .VDPROJ file

2. Find the "Hierarchy" section. Delete everything so the section looks like this:
    "Hierarchy"
    {
    }

3. Find the "File" section. Delete everything so the section looks like this:
        "File"
        {
        }

4. Reload the project

5. Rebuild the project.

6. You may need to re-add project outputs if missing something

Connect TO TFS 2010 From VS 2008

Tags

TFS, VS2008

First, you need to download

Microsoft Visual Studio 2008 Service Pack 1 , Team Explorer 2008 and

Visual Studio Team System 2008 Service Pack 1 Forward Compatibility Update for Team Foundation Server 2010

Once you install everything, you can try adding Team Foundation Server 2010 as destination, but you will be greeted with error "TF31002: Unable to connect to this Team Foundation Server …". Reason behind this is that old Team Explorer 2008 does not know anything about collections.

Solution would be to add it as full path (e.g "http://server:8080/tfs/collection"). I could not do it because every time I entered full path, I also got error "TF30335: The server name cannot contain characters ‘/’ or ‘:’ …". Since official way would not work it was time to come up with alternative.

In order to add TFS 2010 server, you will need to exit Visual Studio 2008 and go into Registry editor. Find key "HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\9.0\TeamFoundation\Servers" and at this location just add string value. Name of this value will be what Team Explorer 2008 will use for display. It’s value is full address of your server. It should be something like http://server:8080/tfs/collection.

Now you can go into Visual Studio 2008 and Team Explorer will have new entry. As you work with it, you will notice that not everything is "bump-free" (e.g. tasks). However, source control it self will work perfectly and that was enough for me.

How to load an icon from an embedded resource in C#

Tags

C#, ICON

Add the file (or icon) to the project, I like to create a folder for all my resource files.

1. (optional) Right click on the project and selected “Add” and then “New Folder”.
2. (optional) Rename new “NewFolder” to “Resources”.
3. Right click on the project (or “Resources” folder) and selected “Add” and then “Add Existing Item”.
4. Find the file (or icon).
5. Right click on the newly added file and select “Properties”
6. Set the “Build Action” property to “Embedded Resource”

Now when you compile the executable the file (or icon) will be embedded.

To use the embedded file use the following code (I have written it like this to illustrate the different steps, clearly you can condense the code into fewer lines)

System.Drawing.Icon icnTask;
            System.IO.Stream st;
            System.Reflection.Assembly a = System.Reflection.Assembly.GetExecutingAssembly();
            st = a.GetManifestResourceStream("{{NameSpace}}.Resources.TaskIcon.ico");
            icnTask = new System.Drawing.Icon(st); 

Unable to see default Silverlight control in Toolbox

Tags

Silverlight

If you can’t see default Silverlight control in Toolbox, run “devenv /setup” or “/reestsettings” in Run or “Visual Studio 2008 Command Prompt”

BreakRoleInheritance(false) and AllowUnsafeUpdates

Tags

BreakRoleInheritance, SharePoint Security

. I’ve used the method for this previously in the solution,BreakRoleInheritance(false), so that no inherited roles are copied, but then this was done on a POST request and now it should do almost the same during a GET request, that is when the user navigates to the page.

All this is done under elevated privileges and looks something like this

SPSecurity.RunWithElevatedPrivileges(delegate() {
  using (SPSite site = new SPSite(url)) {
    using (SPWeb web = site.OpenWeb(url.Replace(site.Url, string.Empty))) {
      web.AllowUnsafeUpdates = true;
      Guid guid = web.Lists.Add(name, string.Empty, SPListTemplateType.DocumentLibrary);
      SPList list = web.Lists[guid];
      ...
      list.BreakRoleInheritance(false);
      ...
      list.Update();
    }
  }
});

This gives me the following error when running during a GET request.

“Updates are currently disallowed on GET requests. To allow updates on a GET, set the ‘AllowUnsafeUpdates’ property on SPWeb.”

If I rewrite the code and change the BreakRoleInheritance(false) to BreakRoleInheritance(true) and set the AllowUnsafeUpdates to true once again it works fine and I have to manually get rid of all the roles.

Why is it so?

If you step through the code in the working sample you will see that after the BreakRoleInheritance(true) line the AllowUnsafeUpdates property of the SPWeb object has changed to false. The AllowUnsafeUpdates property will reset to false whenever any ISecurable object changes their role definitions, and in the BreakRoleInheritance method you have a call to an internal function that invalidates the SPWeb object which resets the AllowUnsafeUpdate property.

The exception is then thrown after breaking the role inheritance and when the method tries to remove the roles from the list. I initially thought that it was the other way around and therefore was a bit confused.

So the correct way is this:

SPSecurity.RunWithElevatedPrivileges(delegate() {
  using (SPSite site = new SPSite(url)) {
    using (SPWeb web = site.OpenWeb(url.Replace(site.Url, string.Empty))) {
      web.AllowUnsafeUpdates = true;
      Guid guid = web.Lists.Add(name, string.Empty, SPListTemplateType.DocumentLibrary);
      SPList list = web.Lists[guid];
      ...
      docLib.BreakRoleInheritance(true); //Exception throw here when the parameters is "false"
      web.AllowUnsafeUpdates = true;
      SPRoleAssignmentCollection roleAssigns = docLib.RoleAssignments;
      for (int i = roleAssigns.Count-1; i >= 0; i--)
     {
        roleAssigns.Remove(i);
      }
      list.Update();
    }
  }
}};

Reference:
http://www.wictorwilen.se/Post/BreakRoleInheritance-and-AllowUnsafeUpdates.aspx
http://www.delphi-ts.com/blogs/lozzi/2008/10/31/TheSecurityValidationForThisPageIsInvalid.aspx

ADO DOTNET Entity Data Model

I am using VS 2008 Sp1 (not beta), when I want to create entity model, the entity model wizard closes with no error, when I choose from Database.

Install

EFB3setupx86 and EFToolsSetupX86, then

1) Open the “Visual Studio 2008 Command Prompt” (with administrator privileges if Vista)
2) devenv /resetskippkgs
3) Close Visual Studio
4) devenv /setup
5) Run Visual Studio

using C# to Replace special characters in XML

We can use the SecurityElement.Escape method to replace the invalid XML characters in a string with their valid XML equivalent [1].

Namespace: System.Security
Assembly: mscorlib (in mscorlib.dll)

I have used the HttpUtility classes UrlEncode and UrlDecode methods to handle cross-site scripting attacks and this also helped me to get rid of the XmlException – “Data at the root level is invalid”.

tagText = SecurityElement.Escape(tagText);

http://msdn.microsoft.com/en-us/library/system.security.securityelement.escape(VS.80).aspx

the dependencies for the object cannot be determined

The issue has very little support out there, so I wanted to post a few fixes I read about, and their result. I’ll post what fixed it for me, but I’m still searching for the all-encompassing solution. Maybe some of the fails below could fix your issue… Please post if you have ideas:

* Tried: Removing and re-adding setup projects: Result: fail
* Tried: Removing my database project and restarting VS: Result: fail
* Tried: Many, MANY, cleans and rebuilds of my solution: Result: fail
* Tried: Reinstall of VS Service Pack 1: Result: No immediate effect
* Tried: Remove and re-add of all project outputs and custom actions: Result: fail
* Tried: Opened the setup projects .vdproj file via Notepad, and removed references to offending project. Re-added my project outputs as usual using File Editor: Result: SUCCESS!

Get FileUpload Control Work In UpdatePanel

Tags

FileUpload Control, UpdatePanel

According to Microsoft the FileUpload control is not compatible with an AJAX UpdatePanel. But you use a PostBackTrigger can be added to the submit button of the form like this:

In code:
PostBackTrigger trigger = new PostBackTrigger();
trigger.ControlID = SubmitButton.ID;
updatepanel.Triggers.Add(trigger);