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The successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications

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Dear Experts,
I am creating an online database portal that requires a user login. Once logged in, the user has access to various pages, one of them will jump to a payment center of a bank. (In my case, Union Bank, https://www.hoabankservices.com/Services.aspx)

Is there anyway that I can inject the userID from before jumping to this payment center, and have it automatically show up in User ID box?
Please advise. Thank you.

4 Comments

I have checkbox that when' Checked' sets the value of the checkbox into a textarea.

    Protected Sub chkReviewdate_CheckedChanged(sender As Object, e As EventArgs) Handles chkReviewdate.CheckedChanged
        CheckActions()
        txtNotes.Text = "Review date to be added or incorrect"
    End Sub

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The problem is that when more than 1 checkbox is checked it overwrites the value in txtNotes.Text with the latest checkbox value

What I would like to do is list ALL the values of the 'Checked' checkboxes, not just the last one. Whats the best way to achieve this?

6 Comments

Hi,

I am looking at a few different things. I am using ASP.NET 4.0 and VB.NET code-behind.

The main situation is this.

I have a page with an iFrame. We'll call that Page 1 and the page in the iFrame as Page 2. The page of the iFrame on Page 2 is a URL location is external and that page cannot change.

Page 1 is polling the database running on reload of the page which invokes the Page_Load on the reload. That Page_Load is executing the stored procedure to check certain values in a table. Page 2 (the one in the iFrame) is where certain information is entered and will have a submit button. After a period of time, information from the Page 2 will go into the same table that I am polling on Page 1.

What is going on is every time Page1 reloads (based on like 10 second interval) the data in Page 2 (in the IFrame) is lost.

How can I keep that from happening?

I can think of one way, off the cuff, and that is to use the Page 1 and Page 2 as a frameset. And one Frame (for the Page 1) is doing the polling and reloading... The other frame is doing the Page 2 but in an iFrame.

When the user hits the "Submit" button on the second frameset (Page 2) then break out of the frameset and only have the Page 1.

Break out of the Frameset from the code behind of Page2 with JavaScript like? Or is there another way?

Page.RegisterClientScriptBlock("ResetPage", "<SCRIPT>top.location.href=" + Page1URL + "</SCRIPT>");

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That is one option. Is there another …

9 Comments

After finally getting assistance with my asp code and compiling so it runs properly on my desktop, I copied files to hosting server and now I get this message from the server:

Server Error in '/' Application.

Runtime Error

Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".



<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>

Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.



<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>

ASP.NET

10 Comments

hi all
i want a line per ittem, please help

ObjSendMail.HTMLBody = "Nombre:" +" " + Request.Form("fname") & Chr(10) & "Email:" +" " + Request.Form("email") & Chr(10) & "Consultorio:" +" " + Request.Form("consultorio") & Chr(10) & "Comentarios:" +" " + Request.Form("message")

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tsm

4 Comments

Hello I am new to asp and and trying to learn how to code properly however, I have a deadline to get this code to work on a clients website. My hosting company moved us to a new server that does not support FrontPage extensions and so i need to update my skills and update my websites I support.

I copied this code from one of the asp.net sources and tweaked it with my variables but am still getting 5 errors when i debug it.

Error      1      Cannot implicitly convert type 'string' to 'System.Web.UI.WebControls.TextBox'      c:\users\melinda\documents\visual studio 2013\Projects\WebApplication1\WebApplication1\Test_form.aspx.cs      27      30      WebApplication1
Error      2      Cannot implicitly convert type 'string' to 'System.Web.UI.WebControls.Label'      c:\users\melinda\documents\visual studio 2013\Projects\WebApplication1\WebApplication1\Test_form.aspx.cs      34      26      WebApplication1
Error      3      Cannot implicitly convert type 'string' to 'System.Web.UI.WebControls.Label'      c:\users\melinda\documents\visual studio 2013\Projects\WebApplication1\WebApplication1\Test_form.aspx.cs      40      26      WebApplication1
Error      4      Property or indexer 'System.Net.Mail.MailMessage.To' cannot be assigned to -- it is read only      c:\users\melinda\documents\visual studio 2013\Projects\WebApplication1\WebApplication1\Test_form.aspx.cs      49      9      WebApplication1
Error      5      Cannot implicitly convert type 'System.Net.Mail.MailAddress' to 'System.Net.Mail.MailAddressCollection'      c:\users\melinda\documents\visual studio …

6 Comments

Hi,

How can I set a variable in JavaScript on an ASPX page but also have the contents available in the VB.NET code behind? This is for an ASP.NET 4 and VB.NET

I can set the variable in the JavaScript but it's not available in the code behind.

I can set it something like this:

 function SetUserName() {
            var myvar = document.getElementById('<%= TextBox1.ClientID %>').value
            '<%Session("LastName") = "' + myvar + '" %>';
            alert('<%=Session("LastName") %>');
        }

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But when I try to get it from the code behind using like an Intermediate window I get like:

Session("LastName") I like "' + myvar + '"

The alert is above in the javascript is showing the right thing. But that setting it apparently only happening on the ClientSide. How do/can I get it to happen on the client side but also on the server side or can I? Is this where Ajax come into play?

If so, how would something like that be done?

Any information would be greatly appreciated.

20 Comments

On a forum post, this user said that he was having problems with a 500 error on his API calls. So he said:
>>Using Fiddler, I'm seeing a page returned that is their "Site Down" page

How does one use Fiddler to test API calls? What is the website url to Fiddler? Because I find JSFiddle.net, but Fiddler.com takes me to a fiddling website.

thanks!

ASP.NET

5 Comments

I have a Calendar control that works fine the way it is but now I have to add some functionality. I am using the DayWeek Selection mode. I have dates that have been saved, as weeks, in my database and I need to have these weeks selected in the control when it loads, so the user knows that these weeks have already been selected. And yes, I currently have a messagebox coming up to let the user know the week has already been selected but I would like the visual representation as well.
Does anyone know how to do this? I know it has something to do with opening a dataset with the dates from the db into the SelectedDates() array(?) and comparing these against the current months dates(Or something like that).
Does anyone have some type of function that does this? It would help me out big time...

Thanks for any help offered!!

9 Comments

"Select * from [TableEditor].[dbo].[teFields] ORDER BY TableID where TableID = " + Convert.ToInt32(ddlTable.SelectedValue) + ""; statement
"Select * from [TableEditor].[dbo].[teFields] ORDER BY TableID where TableID = "39"; Correct

9 Comments

Why do I get this error at line24 ??

Line 23: //fill pg w data
Line 24: lblPrice.Text = "Price per unit: <br/>$ " + detail.eventPrice;
Line 25: lblTitle.Text = detail.eventDetailName;
Line 26: lblDescription.Text = detail.eventDesc;

7 Comments

Question by

sana khan

5d agoSolved

Just a query

I have just a query that if i put required field validator in the forms and also wants to enable a pop message that shows up ‘please complete the mandatory fields’, if any of the required field is not filled.
Will it be possible, that alert will generate

ASP.NET

5 Comments

Hi Experts,

I have a textbox which accepts a date for example "06/21/2017".
I use "prmDateClosed = New SqlParameter("@DateClosed", txtDateClosed.Text.Trim)" to save into the table. The data type of the field in the table is "Datetime". It saves in the table as "2017-06-26 00:00:00.000". When I retrieve it back in a gridview it displayes "6/21/2017 12:00:00 AM ". I just want to save in the table as "06/21/2017". and retrieve as "06/21/2017".

Thanks in advance.

7 Comments

My Css is not applying . Here is the codes from code behind!!!

//Get list of all products in DB
EventDetail eventDetail = new EventDetail();
List<EventDetail> details = eventDetail.getAllEventDetail();

//Make sure events exist in database
if (details != null)
{
//Create a new panel with an image button and 2 labels for each event
foreach (EventDetail detail in details)
{
Panel eventPanel = new Panel();
ImageButton imageButton = new ImageButton();
Label lblName = new Label();
Label lblPrice = new Label();

//set childcontrols' properties
imageButton.ImageUrl = "~/EventImages/Events/" + detail.eventImage;
imageButton.CssClass = "eventImage";

imageButton.PostBackUrl = "Detail.aspx?id=" + detail.EventDetail_ID;

lblName.Text = detail.eventDetailName;
lblName.CssClass = "eventName";

lblPrice.Text = "$ " + detail.eventPrice;
lblPrice.CssClass = "eventPrice";

//Add child controls to panel
eventPanel.Controls.Add(imageButton);
eventPanel.Controls.Add(new Literal { Text = "<br />" });
eventPanel.Controls.Add(lblName);
eventPanel.Controls.Add(new Literal { Text = "<br …

2 Comments

Hello Experts,
My website is working fine until I add the following line. The moment I try to run the website after the line has been added, I am getting the the error "Cannot open database "ASPState" requested by the login. The login failed. Login failed for user 'userid'". Any idea why it fails? FYI, I am using c#.net in Visual Studio 2013.

Session["FirstName"] = "Krishna";

Thank you in advance.

6 Comments

Hi,

I am using Bing Maps V8. I have most activity in JavaScript with ASP.NET 4.0. The code behind, if applicable, is VB.NET.

But what is escaping me is there are several pins on a map and putting the pin is not a problem however getting the list of locations is.

I know Bing Maps V8 has the search but I'm searching for locations that are already pinned.

I need to zoom out to show the map with the area of all the pins.

How do I go about getting a list of all the pin locations to use to get the boundaries so I can zoom out the map?

8 Comments

I am using a webclient to send data via JSON to tell the server what I want to have them return to me. However, The API requires I use a GET. But I don't know how to define a GET in the UploadData or even DownloadString methods. How can I issue a GET at the same time I am also sending JSON?

If I pass all the parameters as query string parameters it also fails, so I have to issue the call using JSON data in the body.

thanks!

ASP.NET
JSON

14 Comments

LVL 1

Question by

Jess31

2017-06-16Solved

Free web host to test?

Is there a free option to host a asp.net project to test on web not on local host?

13 Comments

I am dynamically creating the row and cell structure within an asp:Table and need to access the data in the table. The dynamic creation is because there will be a variable amount of data in the table. The table creation is fine but I am not able to programmatically find the appropriate controls to access the data.

html code

                <table id="tblGoals" class="GoalsTable" runat="server">
                    <tr>
                        <td colspan="4">
                            <h3 class="Center">Goals</h3>
                        </td>
                    </tr>
                    <tr>
                        <td colspan="4">
                            <asp:Table ID="tblGoalDetails" CssClass="GoalDetails" runat="server" GridLines="Horizontal">
                            </asp:Table>
                        </td>
                    </tr>
                </table>

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row and cell creation code

    //********************************************************************************
    // Name: LoadGoalsTable
    // Abstract: Loads goals for specific exercise in workout
    //********************************************************************************
    private void LoadGoalsTable(int intExerciseID)
    {
        int intGoalCounter = 0;
        string strGoalType;

        //look up goals for current exercize
        using (var myEntities = new dbWorkOutEntities())
        {
            var CurrentGoals = (from goals in

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…

21 Comments

LVL 1

Question by

Jess31

2017-06-15Solved

ASP.NET get user IP?

How can I get the User's public IP ?
I am using asp.net / vb

10 Comments

LVL 4

Question by

asp_net2

2017-06-15Solved

Cascade DropDownList using ASP.NET Core MVC

Hello Experts,

I'm using ASP.NET Core MVC, C#, Entity Framework Code First. I'm having trouble finding any tutorials or help with performing a Cascade on 2 DropDownList's.

I have a DropDownList called States that list all 50 States. I need to populate the second DropDownList called Cities based on the selected State value.

Can someone please assist me with this? Please see my attached Model and Controller.

Models

    public class State
    {
        public int StateId { get; set; }
        public string StateAbbr { get; set; }
        public string StateName { get; set; }

        public ICollection<City> Cities { get; set; }
    }

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    public class City
    {
        public int CityId { get; set; }
        public int StateId { get; set; }
        public string CityName { get; set; }

        public State State { get; set; }
    }

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ViewModel

    public class CitiesVM
    {
        public int CityId { get; set; }

        [Required(ErrorMessage = "Select State")]
        [Display(Name = "State")]
        public int StateId { get; set; }
        public IEnumerable<State> States { get; set; }

        [Required(ErrorMessage = "Enter City Name")]
        [Display(Name = "City Name")]
        [StringLength(50)]
        public string CityName { get; set; }
    }

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Controller

States Controller

public class StatesController : Controller
    {
        private readonly CascadeContext

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…

37 Comments

I have a table that has many checkboxes. If one of them is selected, I want to fire an event that sets the value of a dropdown list. I've tried with the below code bus cannot get it to work

    End Sub
    Protected Sub chkLearnerName_CheckedChanged1(sender As Object, e As EventArgs)

        Dim ischeked As Boolean = False
        Dim cntrl As Control
        For Each cntrl In chkboxestbl.Controls

            If TypeOf cntrl Is CheckBox Then
                If CType(cntrl, CheckBox).Checked = True Then
                    ischeked = True
                    ddlRevResult.SelectedValue = 1

                Else
                    ddlRevResult.SelectedValue = 2

                    Exit For

                End If
            End If
        Next
    End Sub

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<table id="chkboxestbl" runat="server" style="width: 100%; font-size: xx-small;">
                                              <tr runat="server">
                                                  <td runat="server"></td>
                                                  <td runat="server" ></td>
                                              </tr>
                                              <tr runat="server">
                                                  <td runat="server">
                                                      <asp:CheckBox ID="chkLearnerName" OnCheckedChanged="chkLearnerName_CheckedChanged1" runat="server" Text="Learner Name" AutoPostBack="True" />

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…

19 Comments

Greetings:

In my ASP.NET app there are occasions whereby the yellow error screen is displayed on a web browser. I would like to intercept these exceptions sending myself an e-mail about the exception and providing a simple, non-technical explanation to the user instead of a yellow screen and a message the user most likely will not understand.

I'm hoping most error messages have a unique error number by product. Product is IIS, SQL Server, ASP.NET, etc. In this case checking for an error number, and not the contents of an error message, will simplify coding.

I hope I've stated my question intelligently.

Much thanks in advance,
David Bach

12 Comments

I am developing an ASP.NET application using C#.

I use the following RegularExpressionValidator to try and accept only alphanumeric characters.
However, the application accepts "Special Characters".
Do you know what I am doing wrong?

<asp:TextBox ID="txtaccountNum" runat="server" Text='<%# Eval("accountNum") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="txtaccountNum" Display="Dynamic" ErrorMessage="Account # is required" SetFocusOnError="true" ForeColor="Red" ValidationGroup="AllValidators"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator9" runat="server"
ErrorMessage="Enter alphanumeric characters only."
ControlToValidate="txtamount" ForeColor="#FF0066"
SetFocusOnError="true"
ValidationExpression="^[0-9a-zA-Z]+$">
</asp:RegularExpressionValidator>

ASP.NET
C#

1 Comment

I'm upgraded the asp.net page and I would like the current users redirect them to the upgraded version with different path.
So , I was thinking of creating a page with instruction to go to a new page with the upgrade version.

What methods or ways I can achieve this same purpose.?
Can this be done by modifying the web config file only or do I hecessarily have to create a page?

3 Comments

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