Forms Data Controls :: Object Reference Not Set To An Instance Of An Object
Oct 15, 2010I get the error:
Object reference not set to an instance of an object
Similar Messages:
Forms Data Controls :: Object Reference Not Set To An Instance Of An Object Repeater Control
Apr 21, 2010can you please help me to brainstorm the possible causes of this error. I've got a paged repeater with localisation bound programitcally to an sqldatasource using a stored proc. I can post code if needs be but it's rather long. I'm looking for typical causes of this error + will make note for future reference!
erver Error in '/WebSite4' Application.
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.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
Line 233:Line 234: Repeater1.DataSource = PagedResultsLine 235: Repeater1.DataBind()Line 236: doPaging()Line 237: End Sub
Forms Data Controls :: Get The Value Of The Id Field In Gridview/Object Reference Not Set To An Instance Of An Object
Feb 1, 2010I am trying to get the value of the id field in my gridview but I keep coming up with this error when i do selectedValue or selecteIndex
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
How do I get that id? What I am trying to do is when the user select that link it will delete that information from the database. Here's my code:
[Code]....
[Code]....
Forms Data Controls :: Get Error : Object Reference Not Set To An Instance Of An Object
Dec 2, 2010I have a nested gridview
i get error:Object reference not set to an instance of an object
when i try to get the text in the footer template of the inner gridview when clicking on the linkbutton!!!
[code]....
Forms Data Controls :: Error : Object Reference Not Set To Instance Of The Object
Feb 3, 2010I am using C# and VS 2008 attached with access database, where Date1 is the PKey in Text defined.
I am getting the above error when i am trying to insert it into the access database.
here is my code
aspx :
[Code]....
Code Behind :
[Code]....
Forms Data Controls :: Get An "Object Reference Not Set To An Instance Of An Object?
Nov 14, 2010My problem is I get an "Object reference not set to an instance of an object." error at runtime on the line "ddl2.SelectedValue = cat1". Ironically I got this from an example on the internet and the only difference is my Cat1 varible which has the correct value at runtime.
<asp:FormView
id="frmCustomer"
DataSourceID="srcCustomer"[code]....
Forms Data Controls :: Gridview And Object Reference Not Set To An Instance Of An Object?
Jul 10, 2010I would like to enable/disable the field BagNo in my gridview, depending on the value of another field in the gridview called ScriptNo, when I click the edit button I get this message "Object reference not set to an instance of an object".
here is the code
Protected Sub GridView1_RowEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs) Handles GridView1.RowEditing
Dim row As GridViewRow = GridView1.Rows(e.NewEditIndex)
If DirectCast(row.FindControl("ScriptType"), TextBox).Text = "TTA" Then
[Code]....
Forms Data Controls :: Cannot Access Header Row Error / Object Reference Not Set To An Instance Of An Object
Jul 2, 2010I tried to get the heade row text with the following code, but it failed.
[Code]....
Error returned was "Object reference not set to an instance of an object." on this line:
[Code]....
Forms Data Controls :: Grid View OnDataRowBound Error: Object Reference Not Set To An Instance Of An Object?
Jul 2, 2010The stored proc fired to populate my grid view gets a column CasNo.The GridView has a DataBound item for CaseNo.
[Code]....
Then Why does this get null value: string caseNo = dataRow["CaseNo"] as string;
[Code]....
[Code]....
Forms Data Controls :: How To Access A LinkButton Inside A Repeater/Object Reference Not Set To An Instance Of An Object
Jan 16, 2010why I get this error:
Object reference not set to an instance of an object.
when I try to access a LinkButton inside a Repeater as follows:
[Code]....
[Code]....
Forms Data Controls :: ItemTemplate And EditTemplate Rowdatabound Trigger/ Object Reference Not Set To An Instance Of An Object
Sep 7, 2010I need to change the row.forecolor = drawing.color.red.
in my gridview i have a STATUS field, its ItemTemplate is LABEL1 and its EditTemplate is DropDownList1.
on loading I have successfully changed the forecolor, but when I edit it gave me an error:
Object reference not set to an instance of an object.
Forms Data Controls :: Object Reference Not Set To An Instance Of An Object?
Nov 11, 2010Im facing a very complicated problem when i tried to view in browser. It shows the above error and i notice it highlights the line code below :
Line 733: Dim CurrentPoint As Double = CType(txt_point.Text, Double)
Stack Trace:
[Code]....
[Code]....
Forms Data Controls :: Object Reference Not Set To Instance Of An Object
Apr 12, 2010I'm getting this error with this code:
Protected Sub Repeater1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles Repeater1.ItemDataBound
' display placeholder image if no imageId
Dim ltrImage1 As Literal = CType(e.Item.FindControl("Image1"), Literal)
Dim ltrImage2 As Literal = CType(e.Item.FindControl("Image2"), Literal)
Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView)
If String.IsNullOrEmpty(drv("ImageId").ToString) Then
ltrImage1.Text = "<img src=""images/properties/x_thumb.gif"" alt="""" />"
ltrImage2.Visible = False
End If
End Sub
I want to set the image if no rows are returned.
Forms Data Controls :: Object Reference Not Set To An Instance Of An Object In Nested Repeater Control Of CheckBox List ...
Sep 24, 2010[Code]....
I am getting error of in Foreach loop
[Code]....
How to resolve this situation or any other alternative to cum out of this problem.
Data Controls :: GridView Row Editing DropDownList / Object Reference Not Set To Instance Of Object
Dec 22, 2013 I am trying to implement the code URL...I have a database table with Integer type.Here is the running code line: Code in GridView:
<asp:TemplateField HeaderText="RegionNavn">
<ItemTemplate>
<%# Eval("RegionNavn")%>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblRegionNavn" runat="server" Text='<%# Eval("RegionNavn")%>' Visible = "false"></asp:Label>
[code]...
On Edit Click, the DropDownList in the GridView brings the previously selected value.On Update Click, the error is: "System.FormatException: Input string was not in a correct format."
dCmd.Parameters.Add("@KystverketRegionID", SqlDbType.Int).Value = int.Parse(ddKystverketRegionID.SelectedValue);
When I use the following code:
ddlRegionNavn.DataTextField = "RegionNavn";
ddlRegionNavn.DataValueField = "RegionID"; // from RegionNavn to RegionID
On Edit Click, the DropDownList values in the GridView is not firing and the following error shows.Object reference not set to an instance of an object. How to implement the code when having a value of type Int ?
Data Controls :: Accessing DropDownList In GridView Row - Object Reference Not Set To Instance Of Object
May 30, 2013I have this part in the Gridview.
<asp:TemplateField HeaderText="Student">
<ItemTemplate>
<asp:DropDownList ID="ddl" OnSelectedIndexChanged="ddl_IndexChanged" runat="server">
</asp:DropDownList>
[Code]....
After the change, when it is to bind data, I get this Exception message. Why?Object reference not set to an instance of an object.
Data Controls :: GridView RowUpdating - Object Reference Not Set To Instance Of Object
Oct 21, 2015When I am executing the below code on Visual Studio 2008, then it is executing properly with out any error. But when i am executing it on Visual Studio 2012, then it showing me following error (System.NullReferenceException: Object reference not set to an instance of an object) at line 64
Why is it so?
.vb Code is below :
Imports System.Data.SqlClient
Imports System.Data
Partial Class grid
Inherits System.Web.UI.Page
Function constr() As String
Dim i As New IO.StreamReader(Server.MapPath("constr.config"))
[Code] ...
HTML code:
<asp:GridView ID="GridView1" runat="server" CellPadding="4" EmptyDataText="no record found" ForeColor="#333333" GridLines="None" AllowPaging="True" HorizontalAlign="Center" Width="303px" AutoGenerateColumns="False">
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<EditRowStyle BackColor="#999999" HorizontalAlign="Center" VerticalAlign="Middle" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
[Code] ....
Data Controls :: Select Item DropDownList In GridView - Object Reference Not Set To Instance Of Object
Aug 30, 2013I have a dropdownlist attached to a cell when edit is selected. I am using the following code to populate the drop down list with the value that is on the row.
dlBU.Items.FindByValue((e.Row.FindControl("lblBU") as Label).Text).Selected = true;
This works famously when I have a value in the cell. It fails when the cell has not yet been populated. Is there an if then clause that if the value of e.Row.findcontrol("lblBU") is null no default value?
Forms Data Controls :: Cannot Identify Controls Within Repeater / Object Reference Not Set To An Instance Of An Object
Nov 23, 2010I have created an ASP page to display records for auditor review and response. The page consists of two repeaters that display 5 rows from a database at a time. for each row displayed, a RadioButtonList, containing two buttons is attached. If the second button is selected, an input text box is displayed to allow auditor comments.
My situation is that I cannot find a way to identify which row is being selected? When I select the Button that should enable the text box, I'm receiving the following error:
"Object reference not set to an instance of an object"
I'm just starting out in ASP coding and would like to know what I'm not doing right?
[code]...
Web Forms :: Object Reference Not Set To An Instance Of An Object Error When Remove Reference To Site Master Page
Sep 30, 2010in my default.aspx page i have a dropdown List and a textbox with a submit button below that there are 2 listbox... and the dropdown list holds the names of the listbox
my logic here is to select an item from the dropdown list and put some text in the text box and submit the form which will add an item to the listbox selected.. but when i do this i get an error saying Object reference not set to an instance of an object. i tried to figure out the problem and found that when i remove the reference to the Site Master Page it works fine and when i undo and apply my reference back to the Site Master Page i get the same error.
[Code]....
DataSource Controls :: Simple Login Form - Object Reference Not Set To An Instance Of An Object?
Apr 20, 2010im tryin to create a login form.
and am receiving the following error:
Object reference not set to an instance of an object
[Code]....
and heres my aspx page:
[Code]....
Stored procedure:
[Code]....
DataSource Controls :: Getting Error - Object Reference Not Set To An Instance Of An Object?
Jul 27, 2010[code]....
i'm having trouble because when it has no return value i get the error
Object reference not set to an instance of an object.
DataSource Controls :: Error - Object Reference Not Set To An Instance Of An Object
Jan 24, 2010im using a sqldatasource and i want it to query a table chosen from a dropdownlist, so i wrote the following in the .cs file
[Code]....
im recieving this error msg: Object reference not set to an instance of an object (pointing to the line containing the select command)
i don't know what's the problem, i tired a hard-coded statement and it worked fine!
DataSource Controls :: Object Reference Not Set To An Instance Of An Object?
May 26, 2010I am adding rows to table and setting value row/cell value, but for datetime field it is giving me error
Object reference not set to an instance of an object.
Initially I am adding a column to table as
table.Columns.Add("Upload Date",
typeof(DateTime));
Then I assigning value to row as
row["UploadDate"] = result["Execution Date"].ToString();
As I have I also null or empty value in the "Execution Date" field .
Web Forms :: Session Ended - But Server Error/ Object Reference Not Set To An Instance Of Object?
Nov 15, 2010In the VS2005 environment, when I test my session to make sure the page redirects to the main page (itself) if the session is null, it works. There is no error.
The function I use for this is:
[code]....
However, when it is in the production environment in IIS 6.0, when the session has timed out, and I then do a postback by doing some slider control, I see the page reload but immediately thereafter, it throws a Server Error exception of : Object reference not set to an instance of object.
Looking at the stack trace, the event occured:
AJAXEnabledWebApplication1._Default.Slider1_TextChanged(Object sender, EventArgs e)
however, why is it that the Slider1_TextChanged event fired even even after during page_load, the page was told to do a response.direct ?? shouldn't the entire page have gone through a full-page refresh life cycle ? why did it continue on to attempt to raise the Slider1_TextChanged event?
