Purpose Of GpState File?

Jan 18, 2010

found a .gpState file in the folder,What is the purpose of gpState file?

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Purpose To Use The Delegates?

Mar 22, 2010

what is the use of delegates. why we use delegates.

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Trying To Use IIS For Paypal Purpose?

Jul 5, 2010

what i want to do is to get the current ip i have (with a site as, http://whatismyip.com/) and send it to paypal sandbox so i can get a response (of course i haven't started the paypal code but i first need to be able to get a communication from paypal,non?)Ok the problem is that if i start a new web site on IIS, hit the current ip, i get my router administration console as a response.I have tried to change the port on a new site to 81 or 82 or 83 but i get a page not found.

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Purpose Of EnableEventValidation - Working?

Oct 11, 2010

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" onrowediting="GridView1_RowEditing">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnEdit" runat="server" Text="Edit" CommandName="Edit" />
<asp:Label ID="lblFirstColumn" runat="server" Text='<%# Eval("FirstColumn") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblEditMode" runat="server" Text="This is Edit mode"></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
protected void Page_Load(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt.Columns.Add("FirstColumn", typeof(int));
dt.Rows.Add(100);
GridView1.DataSource = dt;
if (!IsPostBack)
GridView1.DataBind();
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
GridView1.DataBind();
}

If I change if (!IsPostBack) GridView1.DataBind(); to GridView1.DataBind(); and try to put GridView into Edit mode by clicking btnEdit, then I get the exception: Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. But if I set EnableEventValidation to false, then GridView1 won't enter edit mode ( ie - GridView1_RowEditing doesn't get called ). BTW - same problem also occurs with other databound controls ( DataList, DetailsView ) Page. EnableEventValidation gets or sets a value indicating whether the page validates postback and callback events. When the ableEventValidation property is set to true, ASP.NET validates that a control event originated from the user interface that was rendered by that control. A control registers its events during rendering and then validates the events during postback or callback handling.

a) Why must postback and callback events be evaluated? and how exactly does evaluation happen?
b) Why would calling GridView1.Databind() on each postback cause exception when trying to put it into edit mode?
c) I also don't see any reasons why disabling EnableEventValidation prevents GridView from entering edit mode?! Thus why did.

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What Is Captcha For Security Purpose

Sep 15, 2010

Can anyone tell me what does CAPTCHA do as far as security issue is concerned?Registration form of many sites have this field but how it works?

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Web Forms :: What Is Purpose Of Using Masterpages

May 27, 2010

i want to know what is purpose of using masterpage?

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Purpose Of StringWriter - Usage?

Feb 18, 2010

i would like to know what the StringWriter Class is about and when we should use it.

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Purpose And Mechanisms Of The Postback Event?

Jun 14, 2010

purpose and mechanisms of the postback event? I am becoming very confusined when reading and am hoping that someone could explain it to a beginner.

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Web Forms :: What Is The Purpose Of BrowserFile1.browser And How To Use It

Jun 29, 2010

What is the purpose of BrowserFile1.browser?

How to use it?

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What Is The Purpose Of Handler (.ashx Files) And What Is The Use

Jan 10, 2011

What is the purpose of Handler (.ashx files) and what is the use ?

can i get any sample ?

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Purpose Of The PropertySpecified Pattern Used By XML Serialization?

Mar 10, 2010

What is the purpose of the PropertySpecified pattern used by XML Serialization ?

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Web Forms :: Rewrite Url For Security Purpose?

Jan 11, 2011

I have a problem with URL of my application..................

I want to rewrite my url for security purpose......Like....

suppose my application URl is .....http://localhost/MyApplication/Product.aspx

But i want to change this url with......... http://localhost/MyApplication/MyProducts

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AJAX :: UpdatePanel: What Is The Purpose Of PostBackTrigger

Jul 24, 2010

In documentation I have read:

„Use the PostBackTrigger control to enable controls inside an UpdatePanel to cause a postback instead of performing an asynchronous postback."

I made simple application and I do not see difference between using PostBackTrigger and standard postback.

I have three buttons: two inside update panel and one outside update panel. When I click btnUpdateAsync in event handler I set text property of lblUpdatePanel and lblNoUpdatePanel and only lbl that is inside update panel is chaned if web browswer - so this is ok.

Whant I click btnUpdateInUpdatePanelSync all page is refreshed and both lablels are changed in web browser.

When I click btnUpdateOutsideUpdatePanel I see the same behavior.

If I used button that is not associated with PostBackTrigger I would get the same behavior - so what is the purpose of PostBackTrigger?

This is my app:

[Code]....

protected void Page_Load(object sender, EventArgs e)
{
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
}
protected void btnUpdateAsync_Click(object sender, EventArgs e)
{
lblUpdatePanel.Text = "btnUpdateAsync_Click";
lblNoUpdatePanel.Text = "btnUpdateAsync_Click";
}
protected void btnUpdateInUpdatePanelSync_Click(object sender, EventArgs e)
{
lblUpdatePanel.Text = "btnUpdateInUpdatePanelSync_Click";
lblNoUpdatePanel.Text = "btnUpdateInUpdatePanelSync_Click";
}
protected void btnUpdateOutsideUpdatePanel_Click(object sender, EventArgs e)
{
lblUpdatePanel.Text = "btnUpdateInUpdatePanelSync_Click";
lblNoUpdatePanel.Text = "btnUpdateInUpdatePanelSync_Click";
}

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How To Use Payment Gateway For Online Shopping Purpose

Sep 1, 2010

i have to implement for online payment getting for donation for a social community

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Purpose Of Different Order Of Execution: Init() And Load()

Jan 17, 2011

During a recent interview the following question was asked.

- A Master page which contains
- An ASPX web form page which contains
- A Web User Control inside the page which contains
- A button to fire some code in a button_click event

The Init Event will fire (Inner Most to Outer Most)

aspx.page Begin Init
-> Inside user control Page_Init
-> Inside master page Page_Init
-> Inside lifecycle page Page_Init
aspx.page End Init

and Load Event will fire

aspx.page Begin Load
-> Inside lifecycle page Page_Load
-> Inside master page Page_Load
-> Inside user control Page_Load
aspx.page End Load

Why does ASP.NET framework support different execution order in Load() and Init().This was the question asked in interview.I have no idea about what the interviewer expecting from me.

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DataSource Controls :: Purpose Of ANSI_NULLS ON And QUOTED_IDENTIFIERS ON?

Jun 10, 2010

If you have a very large stored procedure, is it okay to just use the commands just once in the script?
ANSI_NULLS ON and QUOTED_IDENTIFIERS ON?I really don't understand the purpose of these commands?

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Purpose And Proper Use Of A Textfields Max-length Property?

Feb 24, 2010

What is the purpose and proper use of the max-length property on text fields?

The application I'm working on limits numeric fields to 6 characters... which doesn't work very well for entering millions of dollars... which is why I'm "fixing" it.

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Web Forms :: Purpose Of Action Attribute Of Form Element?

Feb 16, 2011

can anyone make it clear the main purpose of action attribute of form tag in html page?

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C# - Can Determine If There Is An Open Source Software For A Specific Purpose

Mar 9, 2010

We are going to write an entire new application for a reservation system. In this system experts specify their free time in elaborated calendar and users seek them through searched and finally reserve the expert and his time.

We prefer to find an open source program like this and try to evolve it instead of creating it from scratch. In this manner our time is saved and that open source program will be completer too.

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Security :: Purpose Of FormAuthentication Coockie In Forms Authentication?

Jan 3, 2011

How server will detect the specific user, by the formsAuthentication cookie.

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ADO.NET :: What Is The Purpose Of Adding A Try Catch Condition That Simply Throws The Exception?

Sep 30, 2010

What is the purpose of adding a try catch condition that simply throws the Exception?

Sample Code (Note: The db object is proprietary code that simply uses ADO.Net):

[Code]....

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Unable To Update Column In Oracle 10g Table Having The Name "PURPOSE"?

Feb 24, 2011

Trying to update an oracle 10g table using asp.net and the oracleclient connector

Here is the sql syntax:

UPDATE tableX set PURPOSE = 'T' where REQUEST_ID = '2543'

This throws an error:

ORA-00904: "PURPOSE": invalid identifier

If I try to update a different column

UPDATE tableX set DELIVERY_COMMENTS = 'T' where REQUEST_ID = '2543'

everything works fine.

The column PURPOSE does exist and I am able to INSERT information into the PURPOSE column.

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Crystal Reports :: Click On Button(hide Crystal Report Tool Bar And Use Own Button For Printing Purpose)?

Feb 17, 2011

I am using Visual studio 2008, ASP.net and Crystal report, every thing is fine, but when i am click on my button(i hide crystal report tool bar and use own button for printing purpose) which i add for printing purpose the code written at button click

reportDocument.PrintOptions.PrinterNam... = "CutePDF Writer";

reportDocument.PrintToPrinter(1,false,0,0);

in the output just column names but no data is present in output, but during and after clicking on print button, but not at output. i use ajax on crystal report on my click print button click, any one have idea for printing or exporting of crystal report using asp.net?

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Purpose Of <meta Name="MSSmartTagsPreventParsing" Content="TRUE">?

Jan 30, 2010

What it does? is there any pros to add this in for all browser?

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Web Forms :: Automatic File Reading / Check For New File Everyday And If The New File Is In The Folder Read It

Sep 20, 2010

I would like ask you for some ideas how can I write mechanism that will be automatically read files from folder. I don't know how to schedule the write task. I want to check for new file everyday and if the new file is in the folder read it.

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