I have a web page in which there is GridView binded with some records. There are two buttons i.e. delete button and update button in the grid. Now When i click delete button, then the RowCommand event fires and it works perfectly. But when I click on update button to update the current row and then clicks on delete button to delete any row, then the following error occurs : 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 I have also used "EnableEventValidation='False'" in the page.aspx but still getting same error .. Kindly help ASAP

Hello All, I'm using VS 2010 .In this, I have bound the DataSource in the Gridview.I have taken one Button in the HeaderTemplate in the columns in the GridView. Now, I want to add New DataRow with empty textboxes in gridview. the code is as follows: ;

Hello, I am trying to bind the Datetimepicker with the value as Time only but not the DateTime, in the .Net window application but the problem is when I'm trying change its value , calender appears but it should be like that as I want to have the time value only. So, Could anyone know how to set like the way that only time value could be set..? Alongwith that could we use Datetime picker dynamically in the RADGridView. if yes, how could we use it? please help thanks ahead, Amit Jain

Hello, As we all know that we could use LINQ to SQL very well and directly using LINQ queries.. But I have a problem while interacting the same with the Oracle database. So, To interact with it, Entity Framwork 4.0 come into existence ? The main reason to use the Entity Framework 4.0 is to interact the LINQ to other databases too..but not limited to SQL...??? please reply to question.. thanks in advance Amit Jain

thanks for your reply.. then..if it won't work, what's the benefit of using JS functions over asp.net validation controls??

Thanks for your reply bro.. But it doesn't work When I refresh the whole page ...frameset automatically refreshes and time again intialises to the given time (say 10 min) and starts counting down.. Any alternative to this ??

are you trying to implement the JS validation functions in asp.net application? If Yes, try this one.. use the Js function in the section function CheckValidation() { if (document.getElementById('<%=txtString.ClientID %>').value == '') { Msg = "Enter string..! \n" } } and use the method in the asp.net textbox control as follows:

Hello, I want to know about the Javasript that after disabling JS from the browser, will js functions execute in asp.net web application? For instance, I have made an asp.net website. In this , I have made the validations using Javascript. Infact, a lot more Javascript is used in my application. So, When any user disables the Javascript from the client browser before using my website , then Will the Javascript Validations work? Will other js functions work after js is disabled from the client browser ? Please help ... Regards, Amit

Hello all, I have used the countdown timer in my asp.net project . It does working fine but the problem arises when I press f5 key or refresh in anyway..timer initialses again to maxmimum set time... So I need a solution for countdown timer that must not be affected on refreshing the page... Please help.......... thanks in advance Amit Jain

hello, I'm new in Silverlight Development. I want to know how to include "System.Data.SQLClient" in Silverlight application. In other words, I want to use SQlConnection in Silverlight application . Please help

thanks for sending.. but How could u say like that...?

Hello all, I have to make a project to keep track of the systems currently in the Network in asp.net. In other words, I want to have an application in which there must be a check about how many connections are currently in use and which are those connections ( e.g. using their IDs)... And apart from this, If anyone gets Offline, then his/her status must be triggered as mail to me...so in this way, I can manage the computer Network Connections.. Anyone knows where can I get the sample project for this ...or get simple idea ...? Thanks in advance..

Its good site ...thanks and I want to ask one thing that is it mandatory to learn WCF & WPF concepts before learning Silverlight ?

Hello all, I'm Asp.Net developer. And Now I want to learn Silverlight from the beginning , about its tools ( I have installed in VS 2008 ) etc.. anyone knows the best tutorial video sites about Silverlight...? Thanks

Hello coders, I am getting one problem in the saving the items information. I have taken one textbox for the NumberOfAssets based on which further generates the respective textboxes. And Before saving the information, I want to implement the validation check on those dynamically generated textboxes i.e. those textboxes must not be empty. For instance, If I enter 3 (integer value) in the "NumberOfAssets" textbox, it further generates the 3 textboxes, And before saving the window form, there must be a validation check for those 3 textboxes. I could not come up with the solution that how to put the validation using For Loop and where to do it as well.. please help ...

Hello coders, I am getting one problem in the saving the items information. I have taken one textbox for the NumberOfAssets based on which further generates the respective textboxes. And Before saving the information, I want to implement the validation check on those dynamically generated textboxes i.e. those textboxes must not be empty. For instance, If I enter 3 (integer value) in the "NumberOfAssets" textbox, it further generates the 3 textboxes, And before saving the window form, there must be a validation check for those 3 textboxes. I could not come up with the solution that how to put the validation using For Loop and where to do it as well.. please help ....

Yeah, there are valid datasource in the combobox. The problem is that the value is not shown in the "comboItem" combobox for editing... in other words , combobox doesn't get value on edit... what could be the error...

Hello all, I'm working on some Desktop based Project in VB.Net in which I have made a page (say UpdateData.aspx) to update the employeeDetails.In that page, There is a DataGridView that displays all the detials. So, I'm using the cell_click event of the gridview. So, When I click on the gridview row, it retrieves all the records which are then populated into respective fields, except into 3 combobox fields. I don't know what to do with them to enter some particular value into those comboboxes as those also contain some datasource. And My code is like the following: ds = obj.GetDetails(objBo) If ds.Tables(0).Rows.Count>0 Then comboItemName.SelectedText = ds.Tables(0).Rows(0)("itemName") comboItemSerialNo.SelectedText = ds.Tables(0).Rows(0)("SerialNo") END please help... Thanks in advance

thanks for your concern Ryan. But i have implemented another alternative for this. I have used onLoad event in the thanks.aspx in its body section as following: ....................... ............. by doing this,the back button after reaching at thanks.aspx webpage, is disabled. It means it doesn't redirect to the test.aspx webpage again and again. but I'll use the code you have sent this time and let you know it helps. And if it doesn't work, then i'll give you the code of those webpages. Thanks

hi Ryan.. I have implemented the idea of including the third page(say process.aspx) between the test.aspx and thanks.aspx.But,the Third page inclusion does help somewhat but what if user clicks browser's back button subsequently after submitting the test....? By doing this, user redirects to the first page again, and between these subsequent clicks, the pages showing the same data again and again..