Trouble with UpdatePanel and OnClick event attribute - ASP.NET Discussion Boards

Re: Insetring Live Streaming of TVs

Blue_Boy21-Jul-11 2:52

Blue_Boy

21-Jul-11 2:52

You are welcome.

I Love T-SQL
"VB.NET is developed with C#.NET"
If my post helps you kindly save my time by voting my post.

www.cacttus.com

Problem with GridView Column Count when databinding programmatically?

kbalias21-Jul-11 0:34

kbalias

21-Jul-11 0:34

Hello

I am using Visual Web Developer 2010 Express (with C# as code-behind) to develop a website.

I am loading data from the database into a DataTable and then I bind the DataTable to GridView with the following code:

GridView_Report.DataSource = reportsTable;
GridView_Report.DataBind();

The GridView displays the data correctly with all the columns and rows. On the Page I also have a button that will download the data in the GridView to a .csv file.

However there was an error and when I debugged it turns out that the GridView_Report.Columns.Count says that the GridView has 0 columns. How can this be when the GridView actually shows about 15 columns in the browser?
The GridView_Report.Rows.Count is correct with 27 rows.

All help will be appreciated.

Kobus

Re: Problem with GridView Column Count when databinding programmatically?

Arun Jacob21-Jul-11 1:40

Arun Jacob

21-Jul-11 1:40

From MSDN,

"Automatically generated column fields are not added to the Columns collection."

Try getting the count from the datasource object instead of gridview.

Arun Jacob
My Technical Blog : Code.NET

Re: Problem with GridView Column Count when databinding programmatically?

Blue_Boy21-Jul-11 1:52

Blue_Boy

21-Jul-11 1:52

You can get Columns from DataSource of GridView control.

e.g

int TotalColumns = ((DataTable)GridView_Report.DataSource).Columns.Count;

I Love T-SQL
"VB.NET is developed with C#.NET"
If my post helps you kindly save my time by voting my post.

www.cacttus.com

ASP 3.0 Question: Chart and Graphs suggestion

Jaiprakash M Bankolli21-Jul-11 0:12

Jaiprakash M Bankolli

21-Jul-11 0:12

Hi All,

I know this is ASP.NET forum but wanted to get your views on options available in ASP 3.0 with chart and graphs. Any suggestion please ? Third party control etc??

Thanks,
Jai

Regards,
Jaiprakash M Bankolli
jaiprakash.bankolli@gmail.com
My Blog
Suggestions for me

Re: ASP 3.0 Question: Chart and Graphs suggestion

Jaiprakash M Bankolli24-Jul-11 2:10

Jaiprakash M Bankolli

24-Jul-11 2:10

Am surprised to see that no one has responded to my query.. are people on vacation Smile | :)

Regards,
Jaiprakash M Bankolli
jaiprakash.bankolli@gmail.com
My Blog
Suggestions for me

Re: ASP 3.0 Question: Chart and Graphs suggestion

Anurag Gandhi24-Jul-11 21:28

Anurag Gandhi

24-Jul-11 21:28

You can use google API.
click here[^] and here[^]

This is client side api call and will work for asp as well as asp.net.

Anurag Gandhi.
http://www.gandhisoft.com
Life is a computer program and every one is the programmer of his own life.
My latest article: Group GridView Data

Trouble with UpdatePanel and OnClick event attribute

Dominick Marciano20-Jul-11 9:54

Dominick Marciano

20-Jul-11 9:54

Below is some code for an update panel I'm using

<asp:LoginView ID="LoginView" runat="server">
                    <LoggedInTemplate>
                        <asp:LoginName ID="name" runat="server" />
                        <asp:UpdatePanel ID="LoginPanel" runat="server">
                            <ContentTemplate>
                                <asp:Label ID="lblClassCode" runat="server" Text="Class Code:" Font-Size="Smaller" Font-Bold="true" visible="false"/>
                                <asp:TextBox ID="txtClassCode" runat="server" Text="" Font-Size="Smaller" visible="false" />
                                <asp:Button ID="cmdClassCode" runat="server" Text="Enter" Font-Size="Smaller" OnClick="cmdClassCode_Click" visible="false" />
                                <asp:Literal ID="lblPrivateClassMessage" runat="server" Text="" Visible="false"/>
                                <asp:ImageButton ID="imgAddToCart" runat="server" OnClick="imgAddToCart_Click" ImageUrl="~/Images/AddToCart.png" Height="40px" Width="119px" Visible="false"/>
                            </ContentTemplate>
                            <Triggers>
                                <asp:AsyncPostBackTrigger ControlID="cmdClassCode" EventName="cmdClassCode_Clicked" />
                            </Triggers>
                        </asp:UpdatePanel>                    
                    </LoggedInTemplate>
                    <AnonymousTemplate>
                        <asp:Login ID="MemberLogin" runat="server"  
                        Font-Size="10px"
                        CreateUserText="Create a new user..."
                        CreateUserUrl="~/Members/Register.aspx"
                        PasswordRecoveryUrl="~/Members/RecoverPassword.aspx"
                        UserNameLabelText="E-mail address:" Height="104px"/>
                    </AnonymousTemplate>
                </asp:LoginView>

Now I had to use the OnClick attribute for the cmdClassCode control because it was in the LoginView. When I try to view this page I get the following error message:

Could not find an event named 'cmdClassCode_Clicked' on associated control 'cmdClassCode' for the trigger in UpdatePanel 'LoginPanel'.

I'm assuming this has something to do with the face that I'm using the OnClick attribute instead of a normal handle. Any suggestions on how to get the cmdClassCode button to trigger the update panel?

Thanks in advance.

Related to GridView

Gautam Vishwakarma20-Jul-11 5:10

Gautam Vishwakarma

20-Jul-11 5:10

I want to manipulate data by using Gridview. please tell how can i do this

Re: Related to GridView

R. Giskard Reventlov20-Jul-11 6:58

R. Giskard Reventlov

20-Jul-11 6:58

That's a poorly framed question: you need to be far nmore specific and tell us a) what research have you already done? b) what have you already tried for yourself and c) how did that work out? Then and only then, ask a question related to an issue in YOUR code. Do not ask for complete solutions as the answer is probably going to offend you.

"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
nils illegitimus carborundum

me, me, me

Re: Related to GridView

Prasanta_Prince20-Jul-11 19:47

Prasanta_Prince

20-Jul-11 19:47

This example shows update,delete and Nested Gridview. Hope this can help you.

Gridview inside Gridview in ASP.NET C#[^]

how can i pass values by using post not get method?

buffering8320-Jul-11 5:00

buffering83

20-Jul-11 5:00

if i click "A" button, do something and move other page.
and when move other page, i want to pass string value.
only i know that ressponse.redirect("test.aspx?userEmail=test@gmail.com");
but if i do that, url address bar show everything.
How can i pass values to other page without show values like get method.

example)
something do~~~(like db handleing)
ressponse.redirect("test.aspx?userEmail=test@gmail.com"); <-- this is get method

hi

My english is a little.
anyway, nice to meet you~~
and give me your advice anytime~

session variables

David Mujica20-Jul-11 5:11

David Mujica

20-Jul-11 5:11

See if this meets your needs ...

http://msdn.microsoft.com/en-us/library/ms178581.aspx[^]

Code for Downloading from website problem

kbalias19-Jul-11 23:22

kbalias

19-Jul-11 23:22

Hello

I am using Visual Web Developer 2010 Express (with C# as code-behind) to develop a website.

On one of the pages the user can create a report of the data and I would like the user to be able to download the data as a .csv file.

I have written the method to download the data, but the HTML of the page is appended to the data in the downloaded file.

When searching for solutions people say the Response.Clear() and Response.End() must be used in the code, but I have that and it still appends the HTML.

The download method is:

public void ExportCSV(DataTable data, string fileName)
{
    try
    {
        HttpContext context = HttpContext.Current;

        context.Response.Clear();
        context.Response.ContentType = "text/csv";
        context.Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName + ".csv");

        //write column header names
        for (int i = 0; i < data.Columns.Count - 1; i++)
        {
            if (i > 0)
            {
                context.Response.Write(",");
            }
            context.Response.Write(data.Columns[i].ColumnName);
        }
        context.Response.Write(Environment.NewLine);

        //Write data
        foreach (DataRow row in data.Rows)
        {

            for (int i = 0; i < data.Columns.Count - 1; i++)
            {
                if (i > 0)
                {
                    context.Response.Write(",");
                }
                context.Response.Write(row[i]);
            }
            context.Response.Write(Environment.NewLine);
        }

        context.Response.End();
    }
    catch (Exception ex)
    {
        throw ex;
    }
}

Here is part of the file that is downloaded:

HospNumber,LastName,FirstName,DOB,Gender,RaceName,DateDied,AgeAtDeath,HospShort,RTID,
RTNum,RegistrationDate,AgeAtRegDate,OSurvival,Last seen,Next appt,Firm,Clinic,Organ,Part,Histology,Intent,Modality,StGp1,StGp2,T,N,M,Study - Other
90000000,Temp,,18/04/1955 12:00:00 AM,,,,,GSH,61227,2010.1103,14/01/2010 12:00:00 AM,,-1,,,,,,,,,,,,,,,
90001245,TestWeb,,23/02/1983 12:00:00 AM,,,23/06/2011 12:00:00 AM,028,04,00,GSH,,,,,,,,,,,,,,,,,,,,
90003214,TestWeb,,18/01/1983 12:00:00 AM,,,,,GEO,,,,,,,,,,,,,,,,,,,,
900223341,TestWeb,,23/03/1983 12:00:00 AM,,,,,GEO,,,,,,,,,,,,,,,,,,,,
90023541,TestWeb,,23/02/1983 12:00:00 AM,,,,,GEO,,,,,,,,,,,,,,,,,,,,
<script type="text/javascript" language="javascript">alert('Thread was being aborted.');</script>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>

</title><link href="../Styles/Site.css" rel="stylesheet" type="text/css" />
</head>
<body>
    <form method="post" action="../Error.aspx" id="Form2">

Any help will be greatly appreciated. Thank you.

Kobus

Re: Code for Downloading from website problem [modified]

Viral Upadhyay20-Jul-11 1:50

Viral Upadhyay

20-Jul-11 1:50

it look like some think crashing while you get data and as a result it is giving you this problem.
Check all the value from DB.

Viral
My Blog
Save Our Tigers

Re: Code for Downloading from website problem

Not Active20-Jul-11 2:07

Not Active

20-Jul-11 2:07

You should not be using Response.End. Rather use Flush and/or CompleteRequest

"This method is provided only for compatibility with ASP—that is, for compatibility with COM-based Web-programming technology that preceded ASP.NET. If you want to jump ahead to the EndRequest event and send a response to the client, call CompleteRequest() instead."
http://msdn.microsoft.com/en-us/library/system.web.httpresponse.end.aspx[^]

I know the language. I've read a book. - _Madmatt

Re: Code for Downloading from website problem

Prasanta_Prince20-Jul-11 19:49

Prasanta_Prince

20-Jul-11 19:49

File Upload and Download in ASP.NET[^]

This link shows Upload and download.

Re: Code for Downloading from website problem

kbalias21-Jul-11 20:35

kbalias

21-Jul-11 20:35

Hi

I managed to get this to work. I originally had the code in a try...catch block. When I removed the try...catch it worked perfectly. I cannot explain that.

Thanks for all the replies.

Kobus

publish asp.net-silverlight-WCF in local iis

yesu prakash19-Jul-11 21:05

yesu prakash

19-Jul-11 21:05

Hi,
I am a beginner in asp.net-silverlight-WCF, i create a small database application using silverlight and WCF. I publish it in the local iis. Its working fine in my local machine but the WCF service is not working in the other machines is the same network.
How to publish it in the local network. I am also a beginner in web service too.

Thank You
YPKI

Re: publish asp.net-silverlight-WCF in local iis

Viral Upadhyay20-Jul-11 1:58

Viral Upadhyay

20-Jul-11 1:58

Hi Prakash,
The question you have ask is related to WCF, here in CP we already have forum for WCF questions.
If you ask question there you will get better answer there.

Regarding you question, WCF are little bit tricky customer. Check the URL and endpoint URL you are using, that may be case for not working WCF.

Viral
My Blog
Save Our Tigers

How to get Gridview to respond to Select command on Blackberry Browser (Curve 8530)

David Mujica19-Jul-11 4:58

David Mujica

19-Jul-11 4:58

I'm trying to develop a Blackberry friendly web page which has aGridview on the page.

I have tried making the row "Selectable" (select hyperlink is shown) and adding command button as one of the columns in the grid. Neither one of those methods respond to a click by the Blackberry Browser.

Does anyone have a solution for this ?

Re: How to get Gridview to respond to Select command on Blackberry Browser (Curve 8530)

Anurag Gandhi19-Jul-11 20:40

Anurag Gandhi

19-Jul-11 20:40

I am not sure if i am answering this but...

David Mujica wrote:
Blackberry friendly web page which has aGridview

GridView is bulky. I would suggest to use some repeater control, or something light weight and implement the required functionality using JavaScript. Smile | :)

Anurag Gandhi.
http://www.gandhisoft.com
Life is a computer program and every one is the programmer of his own life.
My latest article: Group GridView Data

Jquery code is not working in IE [modified]

meghamaharshi19-Jul-11 1:16

meghamaharshi

19-Jul-11 1:16

Hello Everybody

Following code working fine in FF but not working in IE please help me out

function ManageQuantityDropDown() {
if ($("#<%=grdCustAllotedQuantity.ClientID%> table[id*='MainContent_grdCustAllotedQuantity_rdbCustomerRegistrationType'] input:radio:checked").val() == "0") {
$("#<%=grdCustAllotedQuantity.ClientID%> select[id*='MainContent_grdCustAllotedQuantity_ddlQunatity']").attr('disabled', true);
$("#<%=grdCustAllotedQuantity.ClientID%> select[id*='MainContent_grdCustAllotedQuantity_ddlQunatity']").attr('selectedIndex', 1);
$("#<%=hdnAllotedQuantity.ClientID%>").val($("#<%=grdCustAllotedQuantity.ClientID%> select[id*='MainContent_grdCustAllotedQuantity_ddlQunatity']").val());
}
else {
$("#<%=grdCustAllotedQuantity.ClientID%> select[id*='MainContent_grdCustAllotedQuantity_ddlQunatity']").removeAttr('disabled');
}

}

Thanks

modified on Tuesday, July 19, 2011 7:36 AM

Re: Jquery code is not working in IE

Shameel19-Jul-11 4:49

Shameel

19-Jul-11 4:49

meghamaharshi wrote:
not working in IE

Explain your problem in detail. "Not working" is not a good explanation. Does it give you an error? What is it supposed to do?

Re: Jquery code is not working in IE

Not Active19-Jul-11 7:49

Not Active

19-Jul-11 7:49

Format your snippet. Use the "code block" toolbar item.

I know the language. I've read a book. - _Madmatt

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.