high concurrency,principalContext.ValidateCredentials,slow - ASP.NET Discussion Boards

Load data from Database into Razor View using Checkbox Checked event

Enobong Adahada29-Aug-15 3:50

29-Aug-15 3:50

Hello,
I have a TextArea, A submit button and a check box on a Razor view, i want to load some records from the database in to the textarea and then use the submit to send Mesages to the recods loaded.
The issue is that i dont know how to load the data using the check box.
This is my code so far:

the controller:
public ActionResult Message(bool loadData)
{
List<sendmessageviewmodel> _mobile = new List<sendmessageviewmodel>();
if (loadData)
{

foreach (var item in db.ParentsModels)
{
_mobile.Add(new SendMessageViewModel { destination = item.mobile+"," });
}
}
return View(_mobile);
}

The View code is:
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()

@Html.ValidationSummary(true, "", new { @class = "text-danger" })

@Html.LabelFor(model => model.sender, htmlAttributes: new { @class = "control-label col-md-2" })

@Html.EditorFor(model => model.sender, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.sender, "", new { @class = "text-danger" })

@Html.LabelFor(model => model.title, htmlAttributes: new { @class = "control-label col-md-2" })

@Html.EditorFor(model => model.title, new { htmlAttributes = new { @class = "form-control"} })
@Html.ValidationMessageFor(model => model.title, "", new { @class = "text-danger" })

@Html.LabelFor(model => model.message, htmlAttributes: new { @class = "control-label col-md-2" })

@Html.TextAreaFor(model => model.message, new { htmlAttributes = new { @class = "form-control", style = "overflow-y:scroll;vertical-align:top;margin:4px 1px 4px 0;height:293px;width:800px" } })
@Html.ValidationMessageFor(model => model.message, "", new { @class = "text-danger" })

@Html.CheckBoxFor(model => model.loadData)
@Html.LabelFor(model => model.loadData)

@Html.LabelFor(model => model.destination, htmlAttributes: new { @class = "control-label col-md-2" })

@Html.TextAreaFor(model => model.destination, new { htmlAttributes = new { @class = "form-control", style = "overflow-y:scroll;vertical-align:top;margin:4px 1px 4px 0;height:293px;width:800px" } })
@Html.ValidationMessageFor(model => model.destination, "", new { @class = "text-danger" })

}
Thanks

Re: Load data from Database into Razor View using Checkbox Checked event

jkirkerx29-Aug-15 9:11

jkirkerx

29-Aug-15 9:11

Try searching Google using these words "mvc razor, checkbox event"

@Html.Checkbox( "somename", new { @onclick="function-to-open-dialog()"})

How can write Algorithm for the following question?

BUNER28-Aug-15 7:56

BUNER

28-Aug-15 7:56

We have a message for you. But we hid it.
Unless you know the secret phrase, it will remain hidden.

Can you write the algorithm to find it?

Here is a couple of important hints to help you out:
- An anagram of the phrase is: "poultry outwits ants"
- The MD5 hash of the secret phrase is "4624d200580677270a54ccff86b9610e"

Re: How can write Algorithm for the following question?

Richard Deeming28-Aug-15 8:16

Richard Deeming

28-Aug-15 8:16

We STILL don't do your homework, no matter how many times you re-post it.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Re: How can write Algorithm for the following question?

BUNER28-Aug-15 8:25

BUNER

28-Aug-15 8:25

Hi,
thank you for your reply but i need guideline no need to do this task for me just tips

Capturing Selected Items in a DataList Control

Member 1005957127-Aug-15 0:40

Member 10059571

27-Aug-15 0:40

<asp:datalist id="DataList1" runat="server" repeatcolumns="2" width="50px"
="" onitemdatabound="DataList1_ItemDataBound" datakeyfield="Category">

<itemtemplate>

<%# Eval("Category")%>

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)

{
FirstFillDatalist();

}
}
DataTable set = new DataTable();

private void FirstFillDatalist()
{
    adapter = new SqlDataAdapter("select * from category", con);       
    adapter.Fill(set);
    DataList1.DataSource = set;
    DataList1.DataBind();
}

data show..now go to next page with click any where means tag
it is Default.aspx page

     <asp:DataList ID="DataList1" runat="server" RepeatColumns="3" Width="150px"
 DataKeyField="sub_category" >
<ItemTemplate>

<%# Eval("sub_category")%>

Default.aspx.cs

protected void Page_Load(object sender, EventArgs e)
{
FirstFillDatalist();
}
private void FirstFillDatalist()
{
adapter = new SqlDataAdapter("select * from sub_category where cate_id=5", con);
DataTable set = new DataTable();
adapter.Fill(set);
DataList1.DataSource = set;
DataList1.DataBind();
}

then show only cate_id=5 value and i want to be dynamic change of "select * from sub_category where cate_id=5" cate_id value....

Re: Capturing Selected Items in a DataList Control

jkirkerx28-Aug-15 9:36

jkirkerx

28-Aug-15 9:36

what exactly is your question?
I look at your markup and code, but I can't tell if it works or not, and where it fails.
Why not just post code for the part that fails to work? and tell us what's not working.

high concurrency,principalContext.ValidateCredentials,slow

Member 1193909726-Aug-15 22:05

Member 11939097

26-Aug-15 22:05

Hi.

I run a ASP.NET web site.This web site need authentication people with Microsoft ActiveDirectory.Threr are more than 500 thousand user ,10 thousand OrganizationUnit on the Domain Controller.

I wrote a function to validate people in a static class:
Hide Copy Code

static public string ValidateCredentials(string userName, string password)
        {
            string result = null;
            try
            {
                log4net.ILog log = log4net.LogManager.GetLogger("Login.Aspx");
                DateTime time0 = DateTime.Now;
                PrincipalContext principalContext = new PrincipalContext(ContextType.Domain, StsDomainName, StsAdRootOu + "," + StsDomainDn , ContextOptions.SimpleBind,StsAdUserName, StsAdUserPswd);
                
                
                if (principalContext.ValidateCredentials(StsDomainShrotName +"\\" + userName, password,ContextOptions.SimpleBind))
                    result = "1";
                else
                    result = "0";
                log.Debug("Time cost：" + (DateTime.Now - time0).TotalMilliseconds + "DC：" + principalContext.ConnectedServer);
                //principalContext.Dispose();
            }
            catch (Exception e)
            {
                result = e.Message;
            }
            
            return result;

During hign concurrency scence, more than 2000 user login the web site at the same time. I found it cost a long time to do the validation.

But if i dim the principalContext as a static member of the class，the time cost on validation will be cut down.But the CPU usage on the web site server will raise to 90%.

anyone can help me to improve my code

partial view and model binding

rajeshmoorthy24-Aug-15 18:51

rajeshmoorthy

24-Aug-15 18:51

I am new to MVC framework and trying to learn the tricks and I am stuck in one small issue.
Since I have multiple enumerators in the project I have two tables which store them.
One table stores the type of enumerator such as
EnumeratorId int
EnumeratorName varchar(50)

The second table stores the values of the enumerator such as
EnumeratorTypeId int
EnumeratorType varchar(50)
EnumeratorId Int

Since I have to use multiple enumerators in my screen i am planning to write a user control or what they call as partial view. But I am not sure how to bind them to the model or how to write the partial view.

Can anybody help me ??

Rajesh.M

PDF.JS using ASP.NET MVC

Kandepu Rajesh24-Aug-15 11:54

Kandepu Rajesh

24-Aug-15 11:54

There is a requirement in my Project to show a PDF file to the user which is there on the Network shared drive. I have a trouble to set path of the file to the PDF.js.

Th path of my PDF file will be like this. \\dpk020\workingfolder\document.pdf

Could anyone who already used the PDF.js in MVC project help me to resolve this.

Regards,
Rajesh

Re: PDF.JS using ASP.NET MVC

Richard Deeming25-Aug-15 2:27

Richard Deeming

25-Aug-15 2:27

Code running on a website cannot access local files on the client. If it could, that would be a major security vulnerability.

To display a file on your website, the file will need to be available from a web URL (http://... or https://...). Due to cross-domain request limitations, that URL will need to be part of the same site. If it's on a different domain, you will need to enable CORS[^] on the domain which hosts the file.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Re: PDF.JS using ASP.NET MVC

Kandepu Rajesh25-Aug-15 10:21

Kandepu Rajesh

25-Aug-15 10:21

Hai Homer,

Thanks for the reply. My PDF Files are dynamic. There is a WCF service which generates those files and send back the file paths. These files are stored on shared drives on local network. So having said that, do you think I cannot use PDF.js to View PDfs on my webpages?

Thanks,
Rajesh

Re: PDF.JS using ASP.NET MVC

Richard Deeming26-Aug-15 1:57

Richard Deeming

26-Aug-15 1:57

You'll need to create an action in your site to send the file to the browser, and set the PDF.js file URL to point to that action.

The answer from sigma_ivan[^] looks like a good place to start.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Re: PDF.JS using ASP.NET MVC

sigma_ivan25-Aug-15 19:02

sigma_ivan

25-Aug-15 19:02

Code to return file in MVC found it here http://www.mikesdotnetting.com/article/125/asp-net-mvc-uploading-and-downloading-files[^]

you can choose whatever type of file it is. as long as you put the right format/contentType in your case "application/PDF"

public FileStreamResult StreamFileFromDisk()
{
  string path = AppDomain.CurrentDomain.BaseDirectory + "uploads/";
  string fileName = "test.txt";
  return File(new FileStream(path + fileName, FileMode.Open), "text/plain", fileName);
}

IMO

multiple database connection. how to rollback

Karan_TN24-Aug-15 1:23

Karan_TN

24-Aug-15 1:23

Today I asked an interview question. Can you please anyone help me. Question is...

I am having 3 database connections. SQL, Oracle and DB2. In SQL i am going to update.
In Oracel I am going to insert.
In DB2 I am going to delete.
If anyone operation fails, all need to rollback. How to achieve this, either in .NET or DB side.

Expecting your help.

Thanks,
Karan

Re: multiple database connection. how to rollback

F-ES Sitecore24-Aug-15 2:10

F-ES Sitecore

24-Aug-15 2:10

Use a Distributed Transaction Coordinator (DTC).

item template of data list use anchor href that change by dynamicallyon user click after that fetch data by href

Member 1005957118-Aug-15 16:31

Member 10059571

18-Aug-15 16:31

<asp:datalist id="DataList1" runat="server" repeatcolumns="2" width="50px"
="" datakeyfield="category" enableviewstate="False" onitemdatabound="DataList1_ItemDataBound">
<itemtemplate>

<%# Eval("category") %>

category country that is first page use. select country go to next page and change id again select state same as city..

Re: item template of data list use anchor href that change by dynamicallyon user click after that fetch data by href

Richard MacCutchan19-Aug-15 20:59

Richard MacCutchan

19-Aug-15 20:59

Please read http://www.codeproject.com/Messages/1278604/How-to-get-an-answer-to-your-question.aspx[^].

Re: item template of data list use anchor href that change by dynamicallyon user click after that fetch data by href

Otekpo Emmanuel23-Aug-15 11:29

Otekpo Emmanuel

23-Aug-15 11:29

What exactly do you want? Please be specific so that you could get help.

id change data list item data bound with data list

Member 1005957118-Aug-15 9:08

Member 10059571

18-Aug-15 9:08

XML

  <asp:DataList ID="DataList1" runat="server" RepeatColumns="2" Width="50px"
       DataKeyField="category" EnableViewState="False">
      <ItemTemplate>
  <br />
  <h2>
  <asp:Label ID="Label1" runat="server">
<a id="anchor1" runat="server" href='<%# "Directory/Default.aspx?id="+ Eval("cate_id")%>'>
    <%# Eval("category") %>
    </a>
    </asp:Label>
  </h2>
  </ItemTemplate>
  </asp:DataList>

id change fetch data list according to id

Re: id change data list item data bound with data list

jkirkerx19-Aug-15 9:19

jkirkerx

19-Aug-15 9:19

Perhaps you should read this tutorial first on how the control works, and how to bind a data source to it.

You should really put more effort into your question by providing a short summary of:
What is does?
What you have tried?
What your question is?

Sounds like your asking

If the ID of the record changes, I would like the datalist to load the new data according to the new ID.

For that to happen, you have to issue a postback to the server, and have the server repopulate the datalist according to the new ID.

Re: id change data list item data bound with data list

Member 1005957119-Aug-15 9:39

Member 10059571

19-Aug-15 9:39

where are you from?

Deploy mvc application on ftp

DPaul199417-Aug-15 7:50

DPaul1994

17-Aug-15 7:50

Hi. I have created an ASP.NET MVC 4 application and I published it on a ftp server. When I access the link, it shows me the files that are in the folder, not the index page, so I think something is missing from there. Can anybody tell me if I have to do something else after publishing the project? I just created a project and I uploaded to the server to see if it works.

Re: Deploy mvc application on ftp

Afzaal Ahmad Zeeshan17-Aug-15 23:16

Afzaal Ahmad Zeeshan

17-Aug-15 23:16

Quote:
I have created an ASP.NET MVC 4 application and I published it on a ftp server.

Are you sure? You actually publish your website through FTP services, you cannot publish it on FTP server. FTP is used to transfer the files.

Quote:
When I access the link, it shows me the files that are in the folder, not the index page, so I think something is missing from there.

Indeed, that is what happens when you use donkey where you want a horse!

Anyways, as I have already told you FTP server is just used to share the files on the network, thus the name of the protocol (and the service) File Transfer Protocol[^]. The protocol which is used to host or share the web pages is HTTP (Hyper-text transfer protocol[^]). HTTP is used by hosting services (you should get a hosting company for a website, not for file transfering).

When you read the pages for an FTP, you will always get the files in a list. Such as directories and files are always present in a hierarchy. HTTP in opposite, returns the content of that page (index, or default; depends). They are separate protocols, used for separate needs! Smile | :)

I hope I made myself clear enough.

The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~

Re: Deploy mvc application on ftp

DPaul199418-Aug-15 9:37

DPaul1994

18-Aug-15 9:37

Thank you for your reply. I have found the problem.
The problem was caused by the web server, because it didn't accept ASP.NET version for my project. So I have to choose another provider.

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