Binding Generic Collections to an ASP.GridView - ASP.NET Discussion Boards

souravghosh1817-May-09 20:30

17-May-09 20:30

In my application I have used window.confirm('Are you sure to insert').It shows a msg box with ok and Cancel button.Now my problem is how to catch which button is pressed by the user at the server side code.and according to that i have to do the concerned functions.

Re: problem in 'window.confirm'

Vasudevan Deepak Kumar17-May-09 20:53

Vasudevan Deepak Kumar

17-May-09 20:53

souravghosh18 wrote:
which button is pressed by the user at the server side code

Capture the input and use XmlHttp to transmit the contents to the server and examine the response.

Vasudevan Deepak Kumar
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Re: problem in 'window.confirm'

souravghosh1817-May-09 20:58

souravghosh18

17-May-09 20:58

thanx for the response can you plz elaborate a little

Re: problem in 'window.confirm'

Vasudevan Deepak Kumar17-May-09 21:13

Vasudevan Deepak Kumar

17-May-09 21:13

var resp = window.confirm('What is your name');
//Use a XMLHttp Call here to invoke a server page by passing resp

Check out a simple cross browser XMLHttp library and example here:

http://scss.com.au/family/andrew/webdesign/xmlhttprequest/[^]

Vasudevan Deepak Kumar
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But I have promises to keep,
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Re: problem in 'window.confirm' [modified]

Brij17-May-09 21:09

Brij

17-May-09 21:09

It return true/false based on the click.Accordingly call your server side code

Cheers!!
Brij

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modified on Monday, May 18, 2009 6:59 AM

Re: problem in 'window.confirm'

N a v a n e e t h17-May-09 21:14

N a v a n e e t h

17-May-09 21:14

Brij wrote:
Why don't you javascript confirmbox?

Well, what do you window.confirm is?

Navaneeth

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Re: problem in 'window.confirm'

N a v a n e e t h17-May-09 21:13

N a v a n e e t h

17-May-09 21:13

souravghosh18 wrote:
window.confirm('Are you sure to insert')

If user presses OK, it returns TRUE. You can use it like

if(window.confirm('Are you sure to insert'))
  // clicked OK
else
  // canceled

Navaneeth

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Binding Generic Collections to an ASP.GridView

Juvil John17-May-09 20:27

Juvil John

17-May-09 20:27

Hi,

I have a generic object of type List<Items> with a sub collection of objects of type List<Descriptions>. I want to bind them to a gridview but not sure if it's possible, I have tried binding only the object of type List<Items> but if I try adding an ItemTemplate with another grid to try to bind the object of type List<Descriptions> i'm getting an error. says "it should implement IDatasource." something.

my column structure in the grid would look like this.

<Columns>
<asp:BoundField DataField="Key" HeaderText="Key" SortExpression="Key" />
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:TemplateField HeaderText="Descriptions" HeaderStyle-CssClass="headerstyle">
    <ItemTemplate>
        <asp:GridView ID="gv_descriptions" runat="server" DataSourceID='<%# DataBinder.Eval(Container.DataItem, "Descriptions") %>' AutoGenerateColumns="false"
            AllowPaging="true" EnableViewState="false" BorderStyle="None" GridLines="None" ShowEmptyTable="true" AllowSorting="true">
            <Columns>
                <asp:BoundField DataField="Description" HeaderText="ShortDescription" SortExpression="ShortDescription" />
            </Columns>
        </asp:GridView>
    </ItemTemplate>
</asp:TemplateField>
</Columns>

Re: Binding Generic Collections to an ASP.GridView

N a v a n e e t h17-May-09 21:16

N a v a n e e t h

17-May-09 21:16

Handle the RowDataBound event, find the nested GridView and bind List<Descriptions>.

Navaneeth

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Re: Binding Generic Collections to an ASP.GridView

mr_muskurahat17-May-09 21:18

mr_muskurahat

17-May-09 21:18

dear while binding grid you must be doing some thing like..

grid.datasource = obj so this obj is not iEnumerable or idatasource

might be you changing generic with something else..
type here obj.tolist() to make it ienumerable...

Government Dyal Singh College Lahore.

Debug Information

yadlaprasad17-May-09 20:19

yadlaprasad

17-May-09 20:19

Hi all,

Can any one tell me where the data will be stored while debugging! i mean where the debug data will be maintain while you are debugging the application?

Thanks in advance!!!!

fttyhtrhyfytrytrysetyetytesystryrty

Re: Debug Information

Vasudevan Deepak Kumar17-May-09 20:53

Vasudevan Deepak Kumar

17-May-09 20:53

Aren't the PDB files designed for this purpose?

Vasudevan Deepak Kumar
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Re: Debug Information

saanj17-May-09 21:58

saanj

17-May-09 21:58

It will be stored in the Program Database file (.pdb file). A PDB file is created during compilation time from the source file and it contains all modules with their associated addresses and symbols. Stored data in a PDB file can be accessed and extracted by using DIA (Debug Interface Access). For more information on DIA, go to:

http://msdn.microsoft.com/en-us/library/x93ctkx8.aspx[^]

$Shucks | :-\$
Regards
Saanj

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Problem in typecasting date in javascript

ais0717-May-09 19:46

ais07

17-May-09 19:46

Hi There,
I want to know how to typecast date in javscript.
I had done as show below but when I assing date to systemDate then it shows value of
systemDate as invalid date.
Can anybody tell me what is the problem.

---------------------MyCode-----------------------
var systemDate1 = document.getElementById('<%=txtFollupDt.TextClientId%>').value;
var systemDate=new Date(systemDate1);

Thanks,

Re: Problem in typecasting date in javascript

Vijayitsb17-May-09 20:04

Vijayitsb

17-May-09 20:04

You have to assign date like this
var systemDate=new Date(year,month,date);
eg:
var systemDate=new Date(2009,4,18);

Cheers..!
Vijay s

help regarding dynamic data template

sarang_k17-May-09 18:14

sarang_k

17-May-09 18:14

Hi all,

Can any one tell me the link or any example regarding dynamic data template in asp.net + c#.

Thanks in advance,

Re: help regarding dynamic data template

Abhishek Sur17-May-09 22:02

Abhishek Sur

17-May-09 22:02

Try this one
http://www.simple-talk.com/dotnet/.net-framework/dynamic-data-templates-in-asp.net-3.5/

Abhishek Sur

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Create .NET Templates

WebDev.WebServer.exe has encountered a problem

Subin Alex17-May-09 18:07

Subin Alex

17-May-09 18:07

H, I am new to asp.net, when i created a sample Web App and tried to run it , it showed me an error "WebDev.WebServer.exe has encountered a problem". I reinstalled the VS 2005 but the same error persists when i run the application . How could i solve this problem .
Plz help.

Re: WebDev.WebServer.exe has encountered a problem

N a v a n e e t h17-May-09 18:23

N a v a n e e t h

17-May-09 18:23

Searching before you post is a good practice. Here[^] is a blog post which was my first hit when I searched.

Navaneeth

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Bulletin Board used with Repeater

lsh486love17-May-09 14:49

lsh486love

17-May-09 14:49

Hello,

I would like to make a Bulletin Board with Repeater.

I know how to bind data to Repeater control.

Is there sample board used with Repeater??

Thank you.

Have a nice day.

Re: Bulletin Board used with Repeater

N a v a n e e t h17-May-09 16:14

N a v a n e e t h

17-May-09 16:14

If you know how to bind repeater and use it, what is the big deal in designing a bulletin board?

Navaneeth

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Getting text from textbox in a DataList

Matt Cavanagh17-May-09 9:46

Matt Cavanagh

17-May-09 9:46

I have something similar to this: http://quickstarts.asp.net/QuickStartv20/util/srcview.aspx?path=~/aspnet/samples/ctrlref/data/DataList/DataList3.src&file=DataList3_cs.aspx&lang=C%23+Source[^]

But I cant get it to work. When I use the following code it doesnt get what the user has typed in, but instead what was in it initially.
string desc = ((System.Web.UI.WebControls.TextBox)e.Item.FindControl("TextEditDesc")).Text;

I have seen a work around which involves creating another text box for each one in the DataList and then copying the value across on submit. But it seems very silly that you would need to do this. And how does the link above work without that?

Thanks for ur time Smile | :)

Re: Getting text from textbox in a DataList

N a v a n e e t h17-May-09 16:21

N a v a n e e t h

17-May-09 16:21

roguemat wrote:
but instead what was in it initially.

Well, it looks like you are binding the DataList on page_load without checking Page.IsPostBack. So your data list will be regenerated on each refresh and all the values you typed will be reset.

roguemat wrote:
string desc = ((System.Web.UI.WebControls.TextBox)e.Item.FindControl("TextEditDesc")).Text;

This code is error prone. If e.Item.FindControl will return NULL if it can't find the textbox. So you get a NullReferenceException. A better code involves some sanity checking. Something like

TextBox txt = e.Item.FindControl("TextEditDesc") as TextBox;
if(txt != null)
    string desc = txt.Text;

Navaneeth

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Re: Getting text from textbox in a DataList

Matt Cavanagh17-May-09 18:57

Matt Cavanagh

17-May-09 18:57

Awesome answer. I feel like an idiot now for not seeing that :P

Didnt realise events ran on the next load I presumed it would be something like:
PageLoad -> Postback button pressed -> Method Run for button -> PageLoad-> etc

Thanks Smile | :)

Session_Start method's invocation on starting application/session

NetQuestions17-May-09 8:47

NetQuestions

17-May-09 8:47

In my dummy application, I added global.asax page and put a breakpoint in Session_Start method.

Control came to this method when application was brought up / run for the first time.

Thereafter when I entered a user id and password to start a session for the user, control never entered
the method session_start.

is this correct?

My requirement - whenever a user logs in get a certain information from the user's profile and save it onto a
static property. I thought I shall implement this is session_start, but the control never enters the method
session_start.

Please help me out.

Thanks,
NetQuestions

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