ASP.NET

Shaurya_Rastogi6-Sep-07 1:23

Shaurya_Rastogi

6-Sep-07 1:23

Yes i have done that still the post back occurs.
Required Field Validators are firing after post back....which fire before post back in case java script function is not added

Sandeep Akhare6-Sep-07 1:40

6-Sep-07 1:40

Yes when you are attaching the javascript to button then validations at the client side will not fire as you are returning the bool from the function because of that validation of client side are not firing you can check by just by commenting all return from javascript function and from registration in PageLoad. I think its clear now ?

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Shaurya_Rastogi6-Sep-07 1:58

Shaurya_Rastogi

6-Sep-07 1:58

If i remove return it will post back when i click cancel in the Confirm Prompt.

Imran Khan Pathan6-Sep-07 2:04

Imran Khan Pathan

6-Sep-07 2:04

If you use javascript then validator controls will not file.

Best Regard
Pathan

---------------------------------------------------

Sandeep Akhare6-Sep-07 2:05

6-Sep-07 2:05

remove the required field validator and add the javascript validation that will check the text box are empty or what ? i don't have proper sloution right now but this is another way to do it .............
but whats the problem if the page is getting post back and then displaying error message ...........

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Shaurya_Rastogi6-Sep-07 2:07

Shaurya_Rastogi

6-Sep-07 2:07

Thanx for the help Smile | :)

I guess i will have to use java script validations

Sandeep Akhare6-Sep-07 2:09

6-Sep-07 2:09

My pleasure Smile | :)

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Validation-------urgent

Priya_20075-Sep-07 23:47

Priya_2007

5-Sep-07 23:47

Can anyone tell one which validator control I have to use to check for
some controls which should accept alphabets only,
Some controls which should accept numbers only,
Some controls which should accept alphanum only,
Some controls which should accept floating type only,

Please tell me which validator I have to use for the above requirement and how it should be used in ASP.Net 2.0 in Visual Studio 2005

Priya

Sandeep Akhare5-Sep-07 23:50

5-Sep-07 23:50

For this one you can use regular Expression validator for that you need to provide regular expression . Search for regular expresion for different things

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Shujaat Ullah Khan6-Sep-07 0:09

Shujaat Ullah Khan

6-Sep-07 0:09

Hope this could be of some use to you parameter inside search() statement are few regular expression which you can use.

Validations using Search () Method

1. search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) :- E-Mail Field.

2. search(/^\w+((-\w+))+$/) :- Matches the occurrence of only hyphen (-) between alphanumeric values.
Eg :- Only comm-it, shujaat-khan etc. are valid only between two words.

3. search(/^\w+((\.\w+))+$/) :- Matches the occurrence of only Fullstop (.) between alphanumeric values.
Eg :- Only comm.it, shujaat.khan etc.

4. search(/^\w+((_\w+))+$/) :- Matches the occurrence of only Underscore (_) between alphanumeric values.
Eg :- Only comm_it, shujaat_khan etc.

5. search(/^\w+((\W\w+))+$/) :- Matches the occurrence of only Blank Space between alphanumeric values.
Eg :- Only comm it 123, shujaat ullah khan etc.

6. search(/^[0-9]+\.+([0-9]+)+$/) :- Matches the occurrence of only decimal values.
Eg :- Only 22.200, 39.9786 etc.

7. search(/^[0-9]+$/) :- Matches the occurrence of only numeric values.
Eg :- Only 22200, 399786 etc.

8. search(/^[A-Za-z]+$/) :- Matches the occurrence of only Alphabets values.
Eg :- Only shujaat, commit etc.

9. search(/^([A-Za-z]+[A-Za-z0-9]+$)|^[A-Za-z]+$/) :- Matches the occurrence of an Alphabet in beginning and the
others being alphanumeric values.
Eg :- Only shujaat, commit etc.

10. search(/^[A-Za-z]+[\WA-Za-z]+$/):- Matches the occurrence of only Spaces between alphabets.
Eg :- Only comm it, shujaat khan etc.

Shujaat

Priya_20076-Sep-07 1:41

Priya_2007

6-Sep-07 1:41

Where I have to use this Search method and how I have to use this search method.Since Iam new to this please explain me

Priya

Accessing an ImageField in a GridView programmatically

Shujaat Ullah Khan6-Sep-07 1:51

Shujaat Ullah Khan

6-Sep-07 1:51

If you are writing a javascipt for validation you can use search method.
as if variale xyz contain the text to be validates then use
xyz.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/)

However if you are using vaildation control then just copy the regular expression in search method which suits your requirement and set it in validation control.

Shujaat

Rohde5-Sep-07 23:37

Rohde

5-Sep-07 23:37

As the subject reveals, I'm trying to access an ImageField programmatically in order to set the image according to the business object.

In the RowDataBound event handler, I have:

<br />
protected void MessagesGridView_RowDataBound(object sender, GridViewRowEventArgs e)<br />
{      <br />
   if (e.Row.RowType == DataControlRowType.DataRow)<br />
   {<br />
      ImageField theImage = (ImageField)e.Row.Cells[0].Controls[0];<br />

But I get a "[...] Cannot convert type 'System.Web.UI.Control' to 'System.Web.UI.WebControls.ImageField' [...]"

I've searched like mad, but I can't see what I'm doing wrong.

"When you have made evil the means of survival, do not expect men to remain good. Do not expect them to stay moral and lose their lives for the purpose of becoming the fodder of the immoral. Do not expect them to produce, when production is punished and looting rewarded. Do not ask, `Who is destroying the world?' You are."

-Atlas Shrugged, Ayn Rand

Re: Accessing an ImageField in a GridView programmatically

Parwej Ahamad5-Sep-07 23:59

Parwej Ahamad

5-Sep-07 23:59

Please try this........

ImageField theImage = (ImageField)e.Row.Cells[0].FindControl("imageFieldID");

Parwej Ahamad
g.parwez@gmail.com

Re: Accessing an ImageField in a GridView programmatically

Rohde6-Sep-07 0:15

Rohde

6-Sep-07 0:15

Thanks for your suggestions; unfortunately it gives the same compiler error.

I "solved" the issue by simply adding an Image control to the ImageField's cell's control collection. Not very clean, but it works.

custom event handler problem

ekynox5-Sep-07 23:25

ekynox

5-Sep-07 23:25

g'day folks,

i'm having a small issue with regards to custom event handlers in my web service. I'm trying to create a custom event handler whose purpose is to display messages on the web form as a particular method is executed via the web service. For instance, lets assume that the web method generates a report from a database then my eventhandler would update on the web form indicating which aspects of the report has been generated.

Initially I thought let's do it the standard way as you would in a standard console application as follows:
public delegate void ReportGenerationProgressEventHandler(string x);
public event ReportGenerationProgressEventHandler myReportGenerationHandler;

The above can be instantiated as follows:
myReportGenerationHandler+= new ReportGenerationProgressEventHandler (Service_myReportGenerationHandler);

In my webservice if I just declare the delegate and event types as above. Then instantiate an object of my webservice in the webform I do not get an option to create my report progress eventhandler via intellisense.

I have tried google but most disscusions tends to be focused on custom events for custom controls unless I go write a custom control which I think will not be appropriate in my case at all.

Is there an alternative method of achieving the same result in asp.net ?

thanks

edit: mistake in code

Re: custom event handler problem

ekynox6-Sep-07 11:03

ekynox

6-Sep-07 11:03

Just to answer my own question and for anyone else's benefit.

Well it seems that web services in .net doesnt support eventing even though there is a specification,[^] , from the W3C committee that web services should support eventing. The only other option will be to use WCF however platform compatability will be an issue.

DetailsView loses controls state and binding after an exception occurs

Alex Getman5-Sep-07 22:49

Alex Getman

5-Sep-07 22:49

Hi.

I'm using ASP.NET 2.0 and MS SQL Server 2005 environment. I'm developing an aspx page which is using DetailsView to insert data.
There are several TemplateFields are located at the DetailsView control. These Template fields containing TextBox and DropDownlList controls and I'm passing values of these controls using %Bind% syntax:

<asp:DetailsView ID="dvCity" runat="server" AutoGenerateRows="False" DataKeyNames="Id"
DataSourceID="sdsCity" DefaultMode="Insert" OnItemInserted="dvCity_ItemInserted">
<Fields>
<asp:BoundField DataField="Id" HeaderText="Id" InsertVisible="False" ReadOnly="True"
SortExpression="Id" Visible="False" />
<asp:TemplateField HeaderText="Name">
<InsertItemTemplate>
<asp:TextBox ID="txbName" runat="server" Text='<%# Bind("Name") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvName" runat="server" ControlToValidate="txbName" SetFocusOnError="true"
Display="Dynamic" ErrorMessage="You must specify a non-blank value for Name.">*</asp:RequiredFieldValidator>
</InsertItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="RegionId" HeaderText="RegionId" SortExpression="RegionId"
Visible="False" />
<asp:TemplateField HeaderText="Region">
<InsertItemTemplate>
<asp:DropDownList ID="ddlRegion" runat="server" DataSourceID="sdsRegion" DataTextField="Name"
DataValueField="Id" SelectedValue='<%# Bind("RegionId") %>'>
</asp:DropDownList>
</InsertItemTemplate>
</asp:TemplateField>
</Fields>
</asp:DetailsView>

DataSource for the DetailsView is the SqlDataSource which is using StoredProcedures to insert data into Database.

Some parts of business logic are located in the T-SQL code of the StoredProcedure and in case of any error I'm throwing exception from T-SQL using RAISE_ERROR method.

In the aspx.cs, OnItemInserted event of the DetailsView I've implemented following code for exception processing:

protected void dvCity_ItemInserted(object sender, DetailsViewInsertedEventArgs e)
{
if (e.Exception != null)
throw e.Exception;
else
Response.Redirect("City.aspx");
}

When there is no error during StoredProcedure execution everything is works fine.
When my StoredProcedure raises any exception and this exception was handled by my handler user sees the AJAX popup and clicks OK.

Then popup closes, user edits values in DetailsView controls, clicks Save again BUT I got another exception saying that ((TextBox)dvCity.FindControl("txtName")) is NULL. The same is for DropDownList.

It seems to me that DetailsView loses databinding after an exception occurs during Insert/Update operation.
<b>Does anyone can help me how to handle or re-throw exception without DetailsView unbind?</b>

http://www.jetideas.com

Tracing

Priya S5-Sep-07 22:20

Priya S

5-Sep-07 22:20

Hi,
i would like to trace my code using breakpoints,
but its not working,while running appln,
even i checked properties in "debug" tab-all breakpoints enabled,
also tried with <trace="true">Please suggest me...

Thanks&Regards,
Priya.

Parwej Ahamad5-Sep-07 22:39

Parwej Ahamad

5-Sep-07 22:39

I think you are running your project in release mode. Make as debug mode. See in toolbar you have found it.

Parwej Ahamad
g.parwez@gmail.com

Priya S6-Sep-07 1:18

Priya S

6-Sep-07 1:18

changed to debug mode, not tracing.

Thanks&Regards,
Priya.

Sandeep Akhare5-Sep-07 23:48

5-Sep-07 23:48

Build one more time and check the mode in which your application is running

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Priya S6-Sep-07 1:17

Priya S

6-Sep-07 1:17

tried all sorts of mode, of no use.

Thanks&Regards,
Priya.

Sandeep Akhare6-Sep-07 1:50

6-Sep-07 1:50

are you debuging the rig OMG | :OMG:

ht application ?

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "