.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Convert XML to object returns null due to unwanted string

Posted By:      Posted Date: October 19, 2010    Points: 0   Category :ASP.Net

Hello All,

I am facing very odd problem, when I check my xml string than in header it contain one unwanted string square [], like below, due to that casting to object is not happening. Due to that it returns null

[]<?xml version="1.0"?>

But when I remove [] and convert to object then it works fine. Any one has any idea.

View Complete Post

More Related Resource Links

convert string to float when NULL

Hi, I have a column MTD_PNL of type varchar(255) that may have NULL as a value along with numerical values. I want to write an sql to sum up MTD_PNL grouped by ACCT_NO   SELECT ACCT_NO,  SUM(Convert(FLOAT, ISNULL(MTD_PNL,0.0))) AS SUM_MTD_PNL GROUP BY ACCT_NO   The above SQL fails when encounters NULL.  

Cannot convert type 'object[]' to 'byte[]'


I am doing this .. and i want to convert object array to byte array. How should I do that?

Object[] myVal = um.myData;

Byte[] byteArray = (Byte[])myVal;

'element.className' is null or not an object



I just downloaded the project, compiled it and ran it right out of the box and when I put the mouse pointer over or remove the mouse pointer from either MenuItem in the menu demo, I generate this error:

'element.className' is null or not an object

It points to this javascript method:

updateClassName: function(operation, element, name, value) {
        this[operation + 'String'](
                function() {
                    return element.className;
                function(newValue) {
                    element.className = newValue;

Failed to convert parameter value from a String to a Guid.


I am trying to get the UserRole from the logged in user and send it to the database table my code is:

SqlParameter FamilyFriendsOther = new SqlParameter("@Role", SqlDbType.UniqueIdentifier);
        string [] roles = System.Web.Security.Roles.GetRolesForUser();
        if (roles.Length > 0)
            FamilyFriendsOther.Value = roles[0];

Linq to SQL returns null for DateTime fields.


I have a linq to sql entity class in which I declared some DateTime fileds like this:

[Column(DbType = "smalldatetime")]
public DateTime? StartDate { get; set; }

And this is how I fetch data form repository:

return repository.Logs.OrderByDescending(l => l.LogID).FirstOrDefault();

All non DateTime fields are filled properly but all datetimes are null.

[Column(DbType = "smalldatetime")]

        public DateTime? StartDate { get; set; }

Microsoft JScript runtime error: 'Parent' is null or not an object


Hi friends,

        I got This Error : Microsoft JScript runtime error: 'Parent' is null or not an object

 In runtime,after  click on the check box, It Show "Microsoft JScript runtime error: 'Parent' is null or not an object"

<script language ="javascript" type ="text/javascript" >
        function SelectAllCheckboxesSpecific(spanChk)
           var IsChecked = spanChk.checked;
           var items=0;
           var Chk = spanChk;
              Parent = document.getElementById('gvUsers');          
              var items = Parent.getElementsByTagName('input');                         
              for(var i=0;i<items.length;i++)
                  if(items[i].id != Chk && items[i].type=="checkbox")
                      if(items[i].checked!= IsChecked)

please verify it. 

Dropdown menu - Null or empty string??


I have drop dowm menu as follow.

<asp:ListItem Value="">none</asp:ListItem>
<asp:ListItem Value="STO">Stock</asp:ListItem>
<asp:ListItem Value="ORD">Order</asp:ListItem>

If I chose none, it stores data as "Null"

If I Query the data as below, I don't get the data has value of "Null"

SELECT tabale From type Where type <> STO or type <> ORD

I get data that has empty string but not Null.

Here is my question.

1, How do I write dropdown menu value in oder to get empty string instead of Null?
I did <asp:ListItem Value="">none</asp:ListItem> but this stores Null.

2, Why this Query won't pick up Null?
SELECT mytabale FROM type WHERE type <> STO or type <> ORD

Thank you for your help.

VS2005 calling VS2010 asmx service returns empty string


Anyone have any experience with this?

We are using VS 2005 for the front end, and vs 2010 for the web services part (asmx), not wcf yet.


Web service works just like the vs2005 when run locally, no problems.


Connecting to it from a test app returns an empty string. Connecting to a 2005 app doesn't!

Anyone run into this before or have a suggestion? Surely vs 2005 can connect to web services from a later version?






convert english string to hindi string

Code to convert english to hindi string

BuildManager.GetType returns null until application pool recycles

Our application uses the Enterprise Library's PropertyProxyValidator class to validate user input (v4.1 - Oct 2008).  On occassion, the code will raise an exception saying the source type cannot be found.  This error persists until the application pools recycle at night, at which point everything works again.  It tends to only affect one of the web front ends at a time (there are two). I tracked down where the exception was being raised, and this is the section of code:Type IValidationIntegrationProxy.ValidatedType { get { if (string.IsNullOrEmpty(this.sourceTypeName)) { throw new InvalidOperationException(Resources.ExceptionNullSourceTypeName); } Type validatedType = BuildManager.GetType(this.SourceTypeName, false, false); if (validatedType == null) { throw new InvalidOperationException( string.Format(CultureInfo.CurrentUICulture, Resources.ExceptionInvalidSourceTypeName, this.sourceTypeName)); } return validatedType; } } (As you can see, the value for this.SourceTypeName is shown in the exception and I've checked that it matches exactly.) We have never been able to reproduce this exception and at this point don't have any ideas left as far as causes.  For a while, my suspicion was that it was related to the Temporary ASP.NET Files folder.  The last

error in MVC2 on empty string form fields which are required: "This property cannot be set to a null

In model I have:[DisplayName("ISBN")] [Required(ErrorMessage = "ISBN is required.")] [StringLength(50, ErrorMessage = "ISBN book must have max {1} chars.")] [DisplayFormat(ConvertEmptyStringToNull = false)] public string isbn { get; set; }But when I submit form with empty field ISBN I have an error - ConstraintException: This property cannot be set to a null value.I have find that other people have the same problem and they say that debbugger in VS2010 works wrong - yes ?http://p2p.wrox.com/book-professional-asp-net-mvc-2/79788-constraintexception-unhandled-user-code.html#post259245http://efreedom.com/Question/1-3129080/Server-Side-Validation-REQUIRED-String-Property-MVC2-Entity-Framework-Workhttp://mvcmusicstore.codeplex.com/workitem/6604

Failed To Convert Parameter Value From A String To A Int32

 This is my stored procedure: PROCEDURE[dbo].[uspEXPENDITURE_DETAILS] ( @ExpDetailsID int=0 output, @ExpDet_ExpID int, @ExpDet_Municipality_ID nvarchar(50), @ExpDetGeneralFund money, @ExpDetSpecialRevenue money, @ExpDetCapitalProjects money, @ExpDetTotal money, @Exp_Reporting_Year varchar(10), @ExpComments varchar(max), @Contact_ID int ) AS BEGIN  -- SET NOCOUNT ON added to prevent extra result sets from  -- interfering with SELECT statements.  SET NOCOUNT ON; deletefrom [dbo].[TBL_EXPENDITURE_DETAILS] where ExpDet_ExpID=@ExpDet_ExpID and ExpDet_Municipality_ID=@ExpDet_Municipality_ID and Exp_Reporting_Year=@Exp_Reporting_Year If@ExpDetailsID >= 0 Begin INSERT     INTO [dbo].[TBL_EXPENDITURE_DETAILS] ([ExpDet_ExpID] ,[ExpDet_Municipality_ID] ,[ExpDetGeneralFund] ,[ExpDetSpecialRevenue] ,[ExpDetCapitalProjects] ,[ExpDetTotal] ,[Exp_Reporting_Year] ,[ExpComments] ,[ExpDetCreatedBy] ,[ExpDetCreateDate]) VALUES  (@ExpDet_ExpID , @ExpDet_Municipality_ID , @ExpDetGeneralFund, @ExpDetSpecialRevenue , @ExpDetCapitalProjects, @ExpDetTotal, @Exp_Reporting_Year, @ExpComments, @Contact_ID, GetDate () )    SET @ExpDetailsID = SCOPE_IDENTITY()  return @ExpDetailsID end   Public Sub CreateExpenseDetails() Dim item As GridViewRow Dim txtExpGenFund, txtExpD

Convert float to String

HI, I am creating a derived column in my workflow. This derived column would have a concatenated value or Currency + [Account No]. Derived column is of type DT_STR. Currency is string (which is fine). I am having trouble converting [Account No] from float to string I tried Currency + (DT_WSTR)[Account No] and Currency + (DT_STR)[Account No] I am a newbie here... so, excuse my stupid question

Varchar string to int - how to convert empty cells to nulls

Hi, I have a large table from which I want to convert certain columns from varchar to int while loading the table to another table. However, I run into problems when the input column contains empty cells. The SSIS data conversion data flow item can't handle these so I tried the script component. With the script component I can convert these empty cells to zeros but after that I'd need to use SQL update to update the zeros to nulls which in the case of a large table with over 3 million rows takes unnecessarily long. So, is there another way?

failed to convert parameter value from a string to a int32

I am not sure where my app is failing but most probably this is where it is failing.. I think lblExpID.Text is the culprit. Here's the relvant part of my code: Dim lblExpID As Label For Each item In LSGrid.Rows lblExpID = item.FindControl("lblID") If txtExpGenFund.Text <> "" Then sqlArray(i) = ExpDetailsID & "," & (lblExpID.Text) & "," & MunID & "," & _ Val(txtExpGenFund.Text) & "," & Val(txtExpDetSpecialRevenue.Text) & "," & _ Val(txtExpDetCapitalProjects.Text) & "," & expTotal & "," & reportingYear & "," & "Test Comments" & "," & UserID End If Can u help me identify why i am getting this error looking at the sp below: PROCEDURE [dbo].[uspEXPENDITURE_DETAILS] ( @ExpDetailsID int=0 output, @ExpDet_ExpID int, @ExpDet_Municipality_ID nvarchar(50), @ExpDetGeneralFund money, @ExpDetSpecialRevenue money, @ExpDetCapitalProjects money, @ExpDetTotal money, @Exp_Reporting_Year varchar(10), @ExpComments varchar(max), @Contact_ID int ) AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; delete from [dbo].[TBL_EXPENDITURE_DETAILS] where ExpDet_ExpID=@ExpDet_ExpID and ExpDet_Municipality_ID=@ExpDet_Municipality_ID and Ex

Null Reference Exception was not handled by user Object Reference not set to instance of an object

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Security.Principal;using System.Data;using System.Data.SqlClient;using System.Windows;using System.Collections; public partial class Default2 : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {     }    private bool tableCopied = false;    private DataTable originalDataTable;     protected void GridView2_RowDataBound(object sender, GridViewRowEventArgs e)    {         if (e.Row.RowType == DataControlRowType.DataRow)        {            //string sValue = e.Row.Cells[3].Text;             if (!tableCopied)            {                originalDataTable = ((System.Data.DataRowView)e.Row.DataItem).Row.Table.Copy();                ViewState["originalDataTable"] = originalDataTable;      &nbs
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend