Posted Data Always Return Empty From Server
Jan 25, 2011
i always got the empty string in form data posting. can you describe what the hell happened in my code? always got the empty string to insert to SQL server even it is drop down list selected value is empty. Is this the error in visual studio cause sometimes i can get the value and sometimes can't (inconsistent!!!)
Protected Function sqlparameter_insert_newscat() As SqlParameter()
Dim sqlparam(4) As SqlParameter
Dim ddlstatus As Boolean
If rbActive.Items(0).Selected = True Then
[code]...
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Similar Messages:
Jan 25, 2011
I've got stuck for this for a long time. I always got empty value for the posted data. Here is my code:
Protected Function sqlparameter_insert_newscat() As SqlParameter()
Dim sqlparam(4) As SqlParameter
Dim ddlstatus As Boolean
If rbActive.Items(0).Selected = True Then
ddlstatus = True
Else
ddlstatus = False
End If
sqlparam(0) = New SqlParameter("@username", SqlDbType.VarChar, 30, ParameterDirection.Input, False, 0, 0, "", DataRowVersion.Current, Session("user.id"))
sqlparam(1) = New SqlParameter("@news_category", SqlDbType.VarChar, 255, ParameterDirection.Input, False, 0, 0, "", DataRowVersion.Current, news_category.Text)
'Response.Write(HttpContext.Current.Request.Form(name))
sqlparam(2) = New SqlParameter("@news_category_desc", SqlDbType.Text, 1000000, ParameterDirection.Input, False, 0, 0, "", DataRowVersion.Current, HttpUtility.HtmlEncode(news_category_desc.InnerText))
sqlparam(3) = New SqlParameter("@news_category_status", SqlDbType.Bit, 1, ParameterDirection.Input, False, 0, 0, "", DataRowVersion.Current, ddlstatus)
sqlparam(4) = New SqlParameter("@news_category_parent", SqlDbType.BigInt, 100, ParameterDirection.Input, False, 0, 0, "", DataRowVersion.Current, ddlRoot.SelectedValue)
Return sqlparam
End Function
the news_category.text always the empty string even the dropdownlist selected value return empty string. Is this an error of bug in Visual Studio 2010? I 've got stuck for this for long time and i have been nearer to deadline. I just made change "ValidateRequest = False" to aspx file to permit html tag to be posted.
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Feb 27, 2011
i want my query to return results where the field address is not empty or null
however, the query i have is still returning results where address is empty i.e. ' ' .
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May 24, 2010
I have an ASP.NET file upload control which sits as part of a form. The file upload control is on the content page while the form definition is on a master page across the site. I've added multipart/form-enc to the form on the master page.I'm using jQuery to submit the form as I show a dialog box from jQuery UI.When I post, no file is returned to the server. The file upload control has no file and HttpFileCollection is empty.
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Mar 16, 2010
In reference to this question that I just asked, [URL] it appears that for some reason, an empty text box's value is not being fed to SQL Server as NULL, as it ought to be.
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Mar 1, 2010
My program running good. But i try to add up-down icon on my gridView header. but if i make it, My break point should drop below "if comparison" For example; field.SortExpression=Category but every time CustomersGridView.SortExpression is empty when gridview.SortExp is not empty.
foreach (DataControlField field in CustomersGridView.Columns)
{
if (field.SortExpression == CustomersGridView.SortExpression)
{
return CustomersGridView.Columns.IndexOf(field);
}
}
i need :
foreach (DataControlField field in CustomersGridView.Columns)
{
if (field.SortExpression == "Category")
{
return 2;
}
}
CustomersGridView.SortExpression must not be empty!!!!!
MY source:
<head runat="server">
<title></title>
<link type="text/css" href="StyleSheet.css" rel="stylesheet" />
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:GridView
ID="gvCustomers" runat="server" CssClass="tablestyle"
AllowSorting="true"
OnRowDataBound="GvCustomers_RowDataBound" AutoGenerateColumns="false">
<AlternatingRowStyle CssClass="altrowstyle" />
<HeaderStyle CssClass="headerstyle" />
<RowStyle CssClass="rowstyle" />
<Columns>
<asp:BoundField HeaderText="Kategori" DataField="Category" SortExpression="Category" />
<asp:BoundField HeaderText="Tarih" DataField="Date" SortExpression="Date" />
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
protected void GvCustomers_RowDataBound(object sender, GridViewRowEventArgs e)
{
GridView gridView = (GridView)sender;
if (gridView.SortExpression.Length > 0)
{
int cellIndex = -1;
foreach (DataControlField field in gridView.Columns)
{
if (field.SortExpression == gvCustomers.SortExpression)
{
cellIndex = gridView.Columns.IndexOf(field);
break;
}
}
if (cellIndex > -1)
{
if (e.Row.RowType == DataControlRowType.Header)
{
// this is a header row,
// set the sort style
e.Row.Cells[cellIndex].CssClass +=
(gridView.SortDirection == SortDirection.Ascending
? " sortascheader" : " sortdescheader");
}
else if (e.Row.RowType == DataControlRowType.DataRow)
{
// this is an alternating row
e.Row.Cells[cellIndex].CssClass +=
(e.Row.RowIndex % 2 == 0
? " sortaltrow" : " sortrow");
}
}
}
}
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Jan 1, 2011
i want show time data posted. for example 18 second ago or 4 min and 36 second ago or 2 day ago. for example my post in forum asp.net. this is Procedure: but not run.
@DATEDIFF INT=0
as
If (SELECT DATEDIFF(Minute, date, GETDATE()) AS Minutes)
FROM tblajax > 60
BEGIN
SELECT Id, name, family, age,
(SELECT DATEDIFF(Minute, date, GETDATE()) AS Minutes)
FROM tblajax
END
ELSE
BEGIN
SELECT Id, name, family, age,
(SELECT DATEDIFF(Second, date, GETDATE()) AS Second)
FROM tblajax
END
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Feb 4, 2010
HOWTO create ASP.NET C# controls on server side for posted data that had no runat=server on the client.
I have processes needing to post files to a ASP.NET application. These processes must post without runat=server as such:
<form ~~~~ to some ASP.NET/C#/aspx page>
<input type=file name=MY_FILE ~~~>
</form>
On the ASP.NET page, in the Page_Load I would code somethign like this:
[URL]
Here is the trick, the control "fileLIST_FILE" does not exist because the HTML does not have runat=server on it.
If the client did have runat=server the designer.cs would have somethign liek this:
System.Web.UI.HtmlControls.HtmlInputFile fileLIST_FILE;
With all that said, I want to make "fileLIST_FILE" on the fly inside Page_Load fromt he posted name of "MY_FILE".
do not focus on the fact that this is a file upload. I would like to know how to do this for any posted FORM data.
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Oct 19, 2010
I have the following code that i call from the page behind code.
when no records are in the table i get an error message
invalidcastexception
conversion from type DBNULL to type Decimal is not valid
I would prefare if the procedure did not throw this error message and returned a value to notify me that no records found when zero records returned
Public Shared Function invoicetotal(ByVal CustEmail As String) As Decimal
' Dim selectcommand As New SqlCommand
Dim CONNECTION As SqlConnection = MaintainDB.GetConnectionString
Dim sel As String _
[Code]....
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May 7, 2010
I have th following code:
[Code]....
I got any error from the code, saying 'not all code path return a value', i suspect it is the catch block doesnt return a value. If so, what value should i return?
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Jan 1, 2010
I have a page that lists products from a table based on the querystring. So if I say foo.aspx?fam=1 all the products from family 1 will be listed. How can I make my code list all the values if query string is empty? My SQL command would have to be different...can't really see how I can do this.
<asp:SqlDataSource ID="ds_produtos" runat="server"
ConnectionString="<%$ ConnectionStrings:LocalSqlServer2 %>"
SelectCommand="SELECT DISTINCT [IdProduct], [Name], [Description], [IdFamily], [Price], [Stock] FROM [Product] WHERE ([IdFamily] = @IdFamily )">
<SelectParameters>
<asp:QueryStringParameter Name="IdFamily" QueryStringField="fam" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
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Mar 25, 2011
I'm using ASP.MVC 3 with SSRS 2008 R2. I have some reports which I want to render as PDF document. So I my controller, I've got this code
[Code]....
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Oct 6, 2010
When user requests http://localhost/WebApp1/Default.aspx, txtApplicationPath.Text should be assigned "/WebApp1", while txtAbsolutePath.Text should be assigned "http://localhost/WebApp1/Default.aspx", but instead both textboxes display empty strings.
[code]...
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Apr 20, 2010
Whatever server Control we take on aspx page while in coding phase, all those controls are converted to html controls through the asp.net engine and sent to the requesting web browser. That's fine.
Now, all the controls that are rendered on the browser are html controls. I am bit confused that how after pressing any button (Or any such control that post back pages) page is posted back to the asp.net engine. How such html controls comes to know where (address) they have to go?
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Nov 8, 2010
I have an update function in my data layer which is defined as:
public int UpdateRBTable(parameters ...) This calls a SQL Server Stored Procedure to perform an update function on the database.
The process does its job for updating the table. However, the stored procedure has a return value (which indicates how many rows were updated), but this return value is not returned to the application. The application always shows that a zero was returned from the stored procedure.
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Oct 8, 2010
I've a grid view which could have huge data. When any control like a button causes the postback, I do not want gridview data to post back as it is not required and results in slower responses.
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Jun 27, 2012
When I click on the Alphabets it will show the details of a player...however, when that particular letters has no details of the player..I want to show."No results can be found"..Is there anyway to do it?
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ViewState["CurrentAlphabet"] = "ALL";
this.GenerateAlphabets();
[code]...
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Nov 15, 2010
I'm trying to delete some data in my database where no data is inside the field name and field id
select freelancer.id, freelancer.name FROM [bewerber].[dbo].[freelancer] WHERE freelancer.id = 'NUll' and freelancer.name = 'NUll' ORDER BY freelancer.vorname
but it seems to be wrong.
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Feb 5, 2011
I want to take my return value from sql server to c#.
my code
SQL SERVER:
ALTER procedure [dbo].[userss](@email varchar(100),@password varchar(25),@name varchar(250),@DOB varchar(20),@acc_vari int,@ip_address varchar(50),@vari_code varchar(7) )
as
begin
declare @uid int
select @uid=uid from users where email='12we'
if(@uid>0)
return 0
else
insert into users values(@email,@password,@name,@DOB,@acc_vari,@ip_address,@vari_code )
end
In this i want to take return value "return 0 " from sql server to c#.
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Feb 19, 2010
I have a gridview with two bound fields. On clicking a button i want to display the values in first row of gridview in two textboxes. But if gridview cell is empty i am getting the text in textbox to which the value of cell is given as -' 'i know my problem will be solved if i use the template fields instead. But i want a solution while maintaining the bound fields ,if any.
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Oct 1, 2010
I am new to Sql server 2005. I have a table in which contains many data. I need to take particular data. For example, I want to take value of 110652.795813712 from FTEBASEPAY column. So i have wrote the sql statment like in below. SELECT * From tblEmployees where FTEBASEPAY='53842.7782655718' But i am not able to get the particular value. Manually i have seen the tblEmployees table, in which contains the particular data ('53842.7782655718'). When i execute the above select statement, there is no result for it. What i have to for overcome this issue?I have to give one more information, the FTEBASEPAY dataType is float in tblEmployees table.
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Dec 6, 2010
I know this has to be easy. I'm just not sure of the best method to use. Should I be using ViewData?
Table 1 has columns:
ID
Name
TypeID
Table 2 has columns:
TypeID
TypeDescription
The tables are linked by a key on the TypeID column. I want to display:
Table1.ID
Table1.Name
Table2.TypeDescription
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Jun 13, 2010
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class ResponseTest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
var a = Request; //I didn't find the data in Request's structure.
Response.Write("successed; hello World;");
}
}
//-----------------------javascript--------------
for( var i=0; i<this.dataToBeSent.length && this.dataToBeSent[i].hasSent == false; i++ )
{
xmlRequest.open("POST",this.dataToBeSent[i].url,true);
xmlRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlRequest.setRequestHeader("Content-length", this.dataToBeSent[i].data.length);
xmlRequest.setRequestHeader("Connection", "close");
xmlRequest.onreadystatechange = function()
{
var j = j || i;
if(xmlRequest.readyState == 4 && xmlRequest.status == 200)
{
if( xmlRequest.responseText.toLowerCase().indexOf("successed") > -1 )
{
this.dataToBeSent[i].hasSent = true;
}
}
};
xmlRequest.send(this.dataToBeSent[i].data); // xml data
}
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Dec 21, 2010
I am using VB.NET & SQL Server. My sproc returns something like this which I need to display on my web page as below:
sproc returns:
ClientNumber ClientName Product
------------------------------------------
100SON Sony TV
100SON Sony DVD Player
100SON Sony Cell Phone
200KEN Kenmoore Microwave
200KEN Kenmoore Dryer
Now based on these data, I need to display some information like below on label in the web page:
100SON - Sony - TV, DVD Player, Cell Phone
200KEN - Kenmoore - Microwave, Dryer
I need you advice on this.What would be the best way to do this?
(1) I can work further on this data in code to generate the required data or
(2) I can work further in the sproc itself to directly return the required data
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Sep 29, 2010
i am writing a website that has a social networking element to it, and i want to display mutual friends of the person being viewed with the person that is viewing.
is it possible to search one database table and look for matching entries using 2 different usernames? if so how would i do it?
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