Anybody is having any idea about it? The sytem where Visual Studio 2005 is not installed are Windows 2003 system and others are XP

I myself solved the problem.! Thanks for the time spend. As i expected it was the problem of Viewstate. I was holding one dataset of 5000 records in Viewstate.

all the controls are server controls System.Web.UI.WebControls.Dropdownlist System.Web.UI.WebControls.TextBox I am not creating it dynamically I don't think its the problem of the code in textChanged event bcoz if after changing the text in the textbox if we click anywhere else on the page then click on the dropdownlist, no problem arise Anyway the code for the textchanged event ------------------------------------------ lblMessage.Text = ""; if(txtDevelopmentExperience.Text != "") { RangeValidator objRangeValidator = new RangeValidator(); this.FindControl("Form1").Controls.Add(objRangeValidator); objRangeValidator.ControlToValidate = "txtDevelopmentExperience"; objRangeValidator.Type = ValidationDataType.Double; objRangeValidator.MaximumValue = "10"; objRangeValidator.MinimumValue = "0"; objRangeValidator.Validate(); if(objRangeValidator.IsValid != true) { lblMessage.ForeColor = Color.Red; lblMessage.Text = "Invalid data in DE"; return; } objRangeValidator.ControlToValidate = "txtTestingExperience"; objRangeValidator.Type = ValidationDataType.Double; objRangeValidator.MaximumValue = "10"; objRangeValidator.MinimumValue = "0"; objRangeValidator.Validate(); if(objRangeValidator.IsValid != true) { lblMessage.ForeColor = Color.Red; lblMessage.Text = "Invalid data in TE"; return; } if(txtTestingExperience.Text == "")txtTestingExperience.Text = "0"; txtTotalExperience.Text = Convert.ToString(Convert.ToDouble(txtDevelopmentExperience.Text.Trim()) + Convert.ToDouble(txtTestingExperience.Text.Trim())); --------------------------------------------- Even if i am not using the dynamic creation of range validator the problem will come In the second last line of the code I am changing the text of another textbox(txtTestingExperience) thereby the textchanged event of this textbox(txtTestingExperience) will get fired up(same type of code is written in this But i request u to try with basic code to try out .Changing the tex and directly changing the selected index of dropdownlist. Thanks for reading and continously helping me :) :rose:

Hi there, Because the RangeValidator is dynamically created at runtime and it's not added to a container, so when you call the Validate method, the error happens as the method uses the naming container to find the control which is specified in the ControlToValidate property in the control hierarchy. To work around this error, you simply add the validator to a container such as the Form element: RangeValidator objRangeValidator = new RangeValidator(); this.FindControl("Form1").Controls.Add(objRangeValidator); ... For more information, you can see Control.NamingContainer Property[^]

:) RangeValidator objRangeValidator = new RangeValidator(); objRangeValidator.ControlToValidate = "txtPreviousCostToCompany"; objRangeValidator.Type = ValidationDataType.Integer; objRangeValidator.MaximumValue = "10"; objRangeValidator.MinimumValue = "0"; objRangeValidator.ErrorMessage = "Error"; objRangeValidator.Validate(); This is the error I am getting(I think for other validation controls also the same error) ------------------------------ Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Source File: c:\inetpub\wwwroot\timesheetmanagement\recruitment.aspx.cs Line: 238 Stack Trace: [NullReferenceException: Object reference not set to an instance of an object.] System.Web.UI.WebControls.BaseValidator.CheckControlValidationProperty(String name, String propertyName) System.Web.UI.WebControls.BaseValidator.ControlPropertiesValid() System.Web.UI.WebControls.RangeValidator.ControlPropertiesValid() System.Web.UI.WebControls.BaseValidator.get_PropertiesValid() System.Web.UI.WebControls.BaseValidator.Validate() HRMG.Recruitment.recruitment.cmdSave_Click(Object sender, EventArgs e) in c:\inetpub\wwwroot\timesheetmanagement\recruitment.aspx.cs:238 System.Web.UI.WebControls.Button.OnClick(EventArgs e) System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) System.Web.UI.Page.ProcessRequestMain() -------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573 Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Source Error: Line 236: objRangeValidator.MinimumValue = "0"; Line 237: objRangeValidator.ErrorMessage = "Error"; Line 238: objRangeValidator.Validate(); Line 239: Line 240: lblMessage.Text = "";

Cp is doing strange things, so I'm replying to this post. your question was: Thanks for your solution I haven't provided that databind!.(that's why the grid was not displayed) can we do anything on grid without databinding{only in runtime} Think about a situation where we don't have to display any data from a datasource we are just creating columns-using HeaderText,Text,NavigateUrl In that case do we need databinding()? I tried without databinding , but no effect of code! what's ur comment on this! I don't really understand your question, but in order to do something with your datagrid, you have to bind it. (in Winforms it's sufficient to just set the datasource). What you do is 'format' your datagrid and then bind data to it. If you want it too show, even if no data is bound, I think you should do a DataBind with an empty dataset or something. You should find info on msdn. good luck. "If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Well, I'm no expert with asp.net--or anything else for that matter--but no withstanding the previous posters advice is is my understanding that you will have to set AutoGenerateColumns=false and then programmically set your columns accordingly. The following does not have a hyperlink column but should, none the less, give a good idea of what you'll need to do. Jerry He said this was like painstakingly assembling the first layer of a house of cards, then boasting that the next 15,000 layers were a mere formality.--The Code Book, pp. 331 Toasty0.com DotNetGroup.org

Hi there, The problem happens due to the fact that if a checkbox is disabled, then its value will not be submitted. In other words, the code Request.Form["myChk"] will always return null if the myChk checkbox is disabled. Let's take a look at the code implemented in the LoadPostData method bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { string text1 = postDataKey.Substring(this.UniqueID.Length + 1); int num1 = int.Parse(text1); if ((num1 >= 0) && (num1 < this.Items.Count)) { bool flag1 = postCollection[postDataKey] != null; if (this.Items[num1].Selected != flag1) { this.Items[num1].Selected = flag1; if (!this.hasNotifiedOfChange) { this.hasNotifiedOfChange = true; return true; } } } return false; } When the checkbox is disabled, then the code postCollection[postDataKey] will return null, then the selected items will be reset to false, it means that they will be left 'unchecked'. So to work around this error, you are required to provide some code to persist the selected items then reset the items status after the 'Process postback data' phase in the control life cycle. You can also provide your custom checkbox list control by inheriting the standard control. Here, I follow the second option, the sample code below is a simple customized checkboxlist control: public class MyCheckBoxList : CheckBoxList { private object m_selectedIndices; protected override void LoadViewState(object savedState) { base.LoadViewState (savedState); //Here, I keep the selected items then it can be used later. m_selectedIndices = ((Triplet)savedState).Third; } protected override void OnLoad(EventArgs e) { base.OnLoad(e); if(!this.Enabled) { //Reset the selected item status in the Load phase. this.SelectInternal(m_selectedIndices as ArrayList); } } protected override void OnSelectedIndexChanged(EventArgs e) { //We only need to raise the event when the control is enabled. if(this.Enabled) base.OnSelectedIndexChanged (e); } internal void SelectInternal(ArrayList selectedIndices) { this.ClearSelection(); for (int num1 = 0; num1 < selectedIndices.Count; num1

er? are u saying that NET will interpret ur string in language A to a string in language B? There is no such class that can do that, and as a matter of fact there is probably no commercial software that can actually do that without numerous errors. What u can do is localize ur application in as many languages as u want, but you will have to specify all the strings in the different languages yourself, and the app will display the correct language based on the current culture info the app is running in. Check out info about Localizing in MSDSN: Localizing Applications[^]