Why Is JavaScript Object Set To Null
Apr 29, 2010
I have a <script> that contains this line: var tbl = document.getElementById("<%= this.tblSelection.ClientID %>"); but tbl always ends up being set to null. The table is declared like this:
<asp:Table ID="tblSelection" runat="server" CellPadding="2" CellSpacing="0"
cols="1" style="position: absolute; top: 0%; right: 0%">
Both the script and the table are in the same master page file. What could be causing this? I should mention that this script is executed on onload
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[code]....
this code give that solution.but if any one of the field have null(example:r.urrQuickLinkRights contain the NULL) then only it will throw error like Object reference not set to an instance of an object.
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[Code]....
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I am getting this error:
[Code]....
in my application for a module that displays detailed data in a tab control. I think I have determined the TabContainer1 is the name of the "This" element that is having the issue. I figured this out by debugging the ScriptResource.axd file. Here is the offending lines of code:
[Code]....
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[code]....
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Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
If Not IsNothing(ScheduleWeek.oJob) Then
Dim tbl As New DataTable
[code]....
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Apr 30, 2010
Object reference not set to an instance of an object.
iam getting this Error Just created the controls as an null and how to create the object for reference
1) as my analysis i got the information that i need to create the object reference with new keyword but how to do it script using c#
public TextBox txtEventDate = null;
public Calendar calEventDate = null;
public Label lblResult = null;
protected void calEventDate_SelectionChanged (Object sender,EventArgs e)
{
this.txtEventDate = this.FindControl("txtEventDate") as TextBox;
this.calEventDate = this.FindControl("calEventDate") as Calendar;
txtEventDate.Text = calEventDate.SelectedDate.ToString ("d");
}
protected void btnSubmit_Click(Object Sender,EventArgs e)
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this.lblResult = this.FindControl("lblResult") as Label;
lblResult.Text = "You Picked" + txtEventDate.Text;
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May 28, 2010
I'm experimenting with validating forms in the asp.net MVC framework. I'm focusing on server side validation for the time being. I've come across an error that I'm not sure how to rectify. System.NullReferenceException: Object reference not set to an instance of an object. The code that throws the error is:
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//
//
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//
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Iam using AJAX HTML Editor in my project. Initially i made the HTML Editor as invisible and if i click on the button the HTML Editor shoud be visible but when i click on the button iam getting this errorr "Sys.Extended.UI.HTMLEditor.Editor is null or not an object".
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var comm = (from u in my_bd.Comment
where ......
select u);
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I added dynamicly infragistics webpanel in my codebehind using :placeHolder.Controls.Add(ctlWebpanel); but i got this javascript error in my ASP.net page in runtime :'currentStyle' is null or not an object
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