ASP.NET

10-Apr-08 3:19

Hi
I have an image button in a template field
I have an onclick event for this button
How can I find the id of the row I am on in the gridview
previously I had a hyperlink so I could just use something like this:
NavigateUrl='<%# "page.aspx?variable=" + Eval("datafield")

but now I need to do it in the c# on the click event

any help would be great thanks! Smile | :)

Herman<T>.Instance10-Apr-08 3:46

10-Apr-08 3:46

A hands-on example for ya (don't mind the Dutch words in it)
In your aspx:

<asp:TemplateField ItemStyle-Width="16px" >
    <ItemTemplate>
        <asp:ImageButton runat="server" ID="imgAnnul" ImageUrl="~/Images/x16.png" AlternateText="Reservering annuleren" CommandName="AnnulGrid" OnCommand="Grid_OnCommand" />
    </ItemTemplate>
</asp:TemplateField>

in your aspx.cs code:

protected void Grid_OnCommand(Object sender, CommandEventArgs e)
        {
            ImageButton btn = (ImageButton)sender;
            GridViewRow row = (GridViewRow)btn.NamingContainer;
            if (e.CommandName.Equals("AnnulGrid"))
            {
                grdReservation.SelectedIndex = row.RowIndex;
                 // youd code here

                grdReservation.SelectedIndex = -1;
            }
            LoadReservation(grdReservation.PageIndex);
        }

eyeseetee10-Apr-08 4:03

10-Apr-08 4:03

what does

LoadReservation(grdReservation.PageIndex);

mean

and where do i delcare LoadReservation?

thanks so far

also

how can i display the ID from the gridview, where is it stored?
thanks! Smile | :)

Herman<T>.Instance10-Apr-08 5:28

10-Apr-08 5:28

In the Method LoadReservation I reload my GridView with the correct PageIndex. I created this method so it is no default in ASP.NET.
I do this cause you change the settings of the GridView and after the age has been rendered you need to show the altered gridview.

What do you mean by ID. Isn't it what you state in your ASPX page:
asp:GridView runat="server" ID="grdMyGrid" ....

?

eyeseetee10-Apr-08 21:25

10-Apr-08 21:25

Basically the rows are displayed from a query.

Say I have ten rows and I click on a button in one of the rows, well I need to get one of the column ids from that row. e.g.

Item Code Item Price

df4545 test 12.99 Button
fh9707 test2 14.99 Button

Say I clicked on one of the buttons, how would I get the item_code ID as it is the same row?

thanks Smile | :)

Herman<T>.Instance11-Apr-08 1:08

Problem using Crystal Report .NET in ASP.NET

11-Apr-08 1:08

In GridView you have the ID set

DataKeyNames="ID"

In the aspx.cs you can do:

ImageButton btn = (ImageButton)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;
if (e.CommandName.Equals("AnnulGrid"))
{
   grdReservation.SelectedIndex = row.RowIndex;
   Int64 waardeID = Convert.ToInt64(grdReservation.SelectedValue);

   grdReservation.SelectedIndex = -1;
}

I convert the SelectedValue (which is available after setting the SelectedIndex) to In64 because my Databasefiled ID is a BigInt
For a DB-field int you can use int/Int32 in your conversion.
The value of a CELL in a GridView can be obtained via:
In Selected Mode:
row.Cells[1].Text

In Edit-mode:
(TextBox)row.Cells[1].Controls[0]).Text

Fabu197110-Apr-08 3:00

Fabu1971

10-Apr-08 3:00

I developed an ASP.NET web page using as object Crystal Report. I'm using multiview. After the report run, when I clicked Export or move to the next page, the web page goes blank. I tried in different ways to see the report. I have the following code:

protected void Page_Load(object sender, EventArgs e)
{ // Begin Page_Load

if (!Page.IsPostBack)
{ // Begin if
mvwReport.SetActiveView(viewParameterPrompt);
} // End if

} // End Page_Load

To open the report I have the following code:

CrystalReportViewer1.ParameterFieldInfo = myPFs;
CrystalReportViewer1.RefreshReport();
mvwReport.SetActiveView(viewReportOnDemand);

I don't understand why when I click any button of Crystal report the report goes blank. I hope that someone can help me to handle this issue. I appreciate any help or suggestion or idea.

Re: Problem using Crystal Report .NET in ASP.NET

Herman<T>.Instance10-Apr-08 3:49

Re: Problem using Crystal Report .NET in ASP.NET

10-Apr-08 3:49

Your code in the Page_Load should be put in the Page_Init eventhandler

Fabu197116-Apr-08 7:28

Fabu1971

16-Apr-08 7:28

I wrote the code in Page_Init but the report is still not showing the second page. Also, I have problems to use the toolbar. I need help about this matter. Does someone have an example of the code to load a Crystal Report Object using C# in ASP.NET ? I appreciate the support.

Re: Problem using Crystal Report .NET in ASP.NET

Herman<T>.Instance16-Apr-08 10:43

Create ASP.NET pages (without an IDE)

16-Apr-08 10:43

can you show the code(-behind) of that page?

ChandraRam10-Apr-08 2:36

ChandraRam

10-Apr-08 2:36

Hi all

I am trying to write an application that would generate an ASP.NET page, based on certain defined criteria. Database support will also be needed... Has anybody attempted such a thing? Any pitfalls I should be aware of? All suggestions are welcome.

Thank you in advance
Chandra

Not Active10-Apr-08 3:28

Not Active

10-Apr-08 3:28

ChandraRam wrote:
generate an ASP.NET page

What do you mean by this? Generate the html output, or generate a file with ASP.NET server tags, etc.?

only two letters away from being an asset

ChandraRam10-Apr-08 4:43

ChandraRam

10-Apr-08 4:43

Hi
Thanks for replying...

What I am looking for is to generate the ASP.NET page (aspx file) and also the VB code behind file. Maybe I can use some templates? In the generating application, I will know what controls (like combo boxes, text boxes and check boxes) and how many of each will be needed, as also the database to connect to and the criteria for populating the controls.

I really hope this is feasible Smile | :)

Chandra

Reanalyse10-Apr-08 12:51

Reanalyse

10-Apr-08 12:51

Have a look at ASP.Net Maker- may help you

Server application unavailable

ChandraRam10-Apr-08 19:30

ChandraRam

10-Apr-08 19:30

Thank you

But what I want to do is write my own generator, which will probably not include all of the features in ASP.NET Maker.

rajitksingh10-Apr-08 1:59

rajitksingh

10-Apr-08 1:59

I get the following error message as soon as I run my application. The problem is I get it randomly(not every time I run my app) and if I try to run my application again after couple of hours, it works fine.

***********************************************
Server Application Unavailable
The web application you are attempting to access on this web server is currently unavailable. Please hit the "Refresh" button in your web browser to retry your request.

Administrator Note: An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur.
**********************************************

Can someone please suggest whats wrong. Is it the application or the .Net or IIS?

Thanks

Re: Server application unavailable

Not Active10-Apr-08 2:17

Not Active

10-Apr-08 2:17

If it were consistent then it could be .NET. However, since it happens intermittently my guess would be heavy server load or IIS reseting.

only two letters away from being an asset

Re: Server application unavailable

rajitksingh10-Apr-08 2:25

rajitksingh

10-Apr-08 2:25

In my event log, I see the following error message

It is not possible to run two different versions of ASP.NET in the same IIS process. Please

use the IIS Administration Tool to reconfigure your server to run the application in a

separate process.

But why do I get this error randomly.

Re: Server application unavailable

eyeseetee10-Apr-08 2:42