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i had tried this one also previously.
error was occuring
the error is
System.NullReferenceException:Object reference not set to an instance of an object
what is this?
how to rectify this.
am new to .net. thats y am asking all these questions.
please dont feel bad.
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It means that you are using the object whose instance is not creaetd yet
It will also give the line number. check the line number
Which version of ASP.nET are you using ?
Please pest the code
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... "
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on line number i have writen
string val=txtHidden.Value.ToString();
eat is wrong in this?
while debuging it is showing the value of txthiden as
txtHidden: <undefined value>: System.Web.UI.HtmlControls.HtmlInputHidden
am using .net 2003
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OK don't add ToString();
just add
string val=txtHidden.Value;
And be sure that txtHidden is decalared in your application such as
System.Web.UI.HtmlControls.HtmlInputHidden txtHidden;
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... "
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that all thing i have written
and i have tried this as
string val=txtHidden.Value; also
befor. it ididnt work that time so i added it to string();
i dont know wat is wrong in my code and y it is not working.
why it is taking txtHiddenas "undefined"? i have defined it previously na?
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Check the id of the hidden control in aspx page and aspx.cs both should be identical.
Could you post your whole page ?
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... "
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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Text;
using System.IO;
using System.Data.SqlClient;
namespace Web
{
public class _3B2Temp : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button btnclick;
protected System.Web.UI.WebControls.Label lblmsg;
protected System.Web.UI.WebControls.Label lblerr;
protected System.Web.UI.HtmlControls.HtmlInputHidden txtHidden;
private void Page_Load(object sender, System.EventArgs e)
{
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}
private void InitializeComponent()
{
this.btnclick.Click += new System.EventHandler(this.btnclick_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void btnclick_Click(object sender, System.EventArgs e)
{
string val=txtHidden.Value;
}
}
}
</code>
hope this is enough
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I tried this in
private void Page_Load(object sender, System.EventArgs e)
{} also....
please dont stop replaing in between.
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Please be sure that txtHidden value is assigned in aspx
Code looks right check my code
this is javascript function
function HideContent()
{
var hiddenVar=document.getElementById('hidden');
hiddenVar.value="Sandeep";
}
And here is the .cs file code
protected void Page_Load(object sender, EventArgs e)
{
Button1.Attributes.Add("onclick", "javascript:HideContent();");
}
protected void Button1_Click(object sender, EventArgs e)
{
if (!String.IsNullOrEmpty(hidden.Value))
{
TextBox1.Text = hidden.Value;
}
}
It is working boss in my machine
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... "
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thank u boss
its working now
thanks a lot ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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P_Elza wrote: document.getElementById('lblerr');
If this works, odds are that lblerr is not a server control. A server control invariably has a longer client side Id than it's server side one.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Christian Graus wrote: odds are that lblerr is not a server control
I didnt understand what u mean. I said this code is not working. and showing error
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Try this
if(Request.querystring["Value"]!=null)<br />
{<br />
Idval=Request.querystring["Value"];<br />
label1.Text=Idval; <br />
} <br />
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What if he wants the value in same page when postback occurs ?
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... "
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I tryed this but
Kasi Viswanathan wrote: Request.querystring
is showing error. I couldent rectify this.
th error is
'System.Web.HttpRequest' does not contain a definition for 'querystring'
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It may be get by two way
1. Make hidden field and assign your javascript values to that field using javascript. AND then used that hidden field in code behind.
2. Use cookies to get/set values from javascript and codebehind. B'cz as you may know cookies can be operate by javascript and codebehind both side.
Prakash Samariya
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How to bind the values to arraylist and hashtable...,
Ex:
Here i am binding some arraylist and hashtable like this:
Dim _Text As ArrayList = New ArrayList
_Text.Add("Name1")
_Text.add("Name2")
Dim _SubTabText As Hashtable = New Hashtable
_Text = New ArrayList
_Text.Add("Name1")
_Text.Add("Name2")
_SubTabText.Add(1, _Text)
Same things i like to bind using query...,
This is my query:
Select id,name from employee
The above query name have to bind in arraylist
similarly in hashtable id has been key and name has been value...,
How to do that???,
Advance thanks...,
Regards,
Magi
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try this code i am not sure..
_Text = New ArrayList
_Text.Add("Name1")
_Text.Add("Name2")
Controlid.DataSource=_Text
Controlid.DataBind()
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try this code
for hash Table..
dim ss=New Hashtable
ss.Add("N","Name1")
ss.Add("S","Name2")
controlid.DataSource=ss
controlid.DataValueField="id"
controlid.DataTextField="name"
controlid.DataBind()
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I am developing checkin & checkout process as what we see in Microsoft Visuall Source Safe. The problem I am facing I need to track the url in the client machine where client is storing the file in process of downloading using asp.net.
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Hi,
Unless you are using smart client this should not be allowed as a security principle.
However, it would be interesting to see if there are posibilites to do so.
Regards
Raz
/*
Ghazi Hadi Al Wadi, PMP, ASQ SSGB, DBA
*/
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hi friends
i create content management system in asp.net
i have 3 links
1.edit
2.delete
3.new
if i click edit the correspnding page will be display the same page.
Edit the content and save it
how can i done this.
Known Is Drop.Unknown Is Ocean
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R a jendran wrote: give href= correct page.aspx...where u you want to dislay..
Did you understand his question in the first place?
Regards
- J O H N -
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saravanan05 wrote: i have 3 links
1.edit
2.delete
3.new
What do you mean by this?
MCMS provides a built-in control to preform all these on the Content Pages.
saravanan05 wrote: how can i done this.
here is a link to an article which will help you to undestand the steps to create a content page and publish it.
Steps to Develop a Dynamic Website
Regards
- J O H N -
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function ReadFileToString(strFileName)
{
var strContents;
strContents = "";
objFSO = new ActiveXObject("Scripting.FileSystemObject");
if (objFSO.FileExists(strFileName))
{
strContents = objFSO.OpenTextFile(strFileName, 1).ReadAll();
objFSO.CopyFile("C:/Winter.tif","http:\\192.168.5.2\share\Winter.tif")
}
return strContents;
} //end of function
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