Help with a problem

[Jerry]

I am wondering that the Book example is running.............

In my opionon it can't.

In the Book Exmple you see the Function UpdateDataStore


function UpdateDataStore(e as DataGridCommandEventArgs) as boolean

You see that it needs a Parameter................


Change
if UpdateDataStore then

to
if UpdateDataStore(e) then

Maybe if the Codeexample hasn't more Bugs it works......





"compuglobalhypermeganetz0r" <spam@someone.com> schrieb im Newsbeitrag news:3f2f972d@quokka.wn.com.au...
I am using the following code from a book example but cant seem to get it to work, I get an error as seen below, any ideas?

Full code listing -> [url]http://www.aspalliance.com/nothingmn/codex.aspx?codeid=720[/url]


Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC30455: Argument not specified for parameter 'e' of 'Public Function UpdateDataStore(e As System.Web.UI.WebControls.DataGridCommandEventArgs ) As Boolean'.

Source Error:


Line 75:
Line 76: sub dgData_Update(Sender as Object, e as DataGridCommandEventArgs)
Line 77: if UpdateDataStore then
Line 78: FillDataGrid(-1)
Line 79: end if

Source File: c:\inetpub\wwwroot\day10\2.aspx Line: 77

[compuglobalhypermeganetz0r]

That stops the compile error, but when i try to submit changes to a field I get this 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.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 100: strText = Ctype(e.Item.Cells(i).Controls(0), Textbox).Text
Line 101: if strText <> "" then
Line 102: ds.Tables("tblUsers").Rows(e.Item.ItemIndex)(j) = strText
Line 103: j = j + 1
Line 104: else

Source File: c:\inetpub\wwwroot\day10\2.aspx Line: 102

Stack Trace:

[NullReferenceException: Object reference not set to an instance of an object.]
ASP._2_aspx.UpdateDataStore(DataGridCommandEventAr gs e) in c:\inetpub\wwwroot\day10\2.aspx:102
ASP._2_aspx.dgData_Update(Object Sender, DataGridCommandEventArgs e) in c:\inetpub\wwwroot\day10\2.aspx:77
System.Web.UI.WebControls.DataGrid.OnUpdateCommand (DataGridCommandEventArgs e) +109
System.Web.UI.WebControls.DataGrid.OnBubbleEvent(O bject source, EventArgs e) +507
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26
System.Web.UI.WebControls.DataGridItem.OnBubbleEve nt(Object source, EventArgs e) +106
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26
System.Web.UI.WebControls.LinkButton.OnCommand(Com mandEventArgs e) +121
System.Web.UI.WebControls.LinkButton.System.Web.UI .IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +115
System.Web.UI.Page.RaisePostBackEvent(IPostBackEve ntHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCol lection postData) +138
System.Web.UI.Page.ProcessRequestMain() +1277




"Jerry" <Jerry@Jerry.com> wrote in message news:bgo652$64t$05$1@news.t-online.com...

I am wondering that the Book example is running.............

In my opionon it can't.

In the Book Exmple you see the Function UpdateDataStore


function UpdateDataStore(e as DataGridCommandEventArgs) as boolean

You see that it needs a Parameter................


Change
if UpdateDataStore then

to
if UpdateDataStore(e) then

Maybe if the Codeexample hasn't more Bugs it works......





"compuglobalhypermeganetz0r" <spam@someone.com> schrieb im Newsbeitrag news:3f2f972d@quokka.wn.com.au...
I am using the following code from a book example but cant seem to get it to work, I get an error as seen below, any ideas?

Full code listing -> [url]http://www.aspalliance.com/nothingmn/codex.aspx?codeid=720[/url]


Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC30455: Argument not specified for parameter 'e' of 'Public Function UpdateDataStore(e As System.Web.UI.WebControls.DataGridCommandEventArgs ) As Boolean'.

Source Error:


Line 75:
Line 76: sub dgData_Update(Sender as Object, e as DataGridCommandEventArgs)
Line 77: if UpdateDataStore then
Line 78: FillDataGrid(-1)
Line 79: end if

Source File: c:\inetpub\wwwroot\day10\2.aspx Line: 77

[Jerry]

Take the Debugger in Visual Sutido and look which object is empty
otherwise you will geht a hard time in the future.

ds.Tables("tblUsers").Rows(e.Item.ItemIndex)(j)

Maybe the Row ist empty or the Column of the Row

e.Item.ItemIndex is the index of the Row

j is the index of the Column.

or write the Autor of the Book that the Code doesn't work at all........


"compuglobalhypermeganetz0r" <spam@someone.com> schrieb im Newsbeitrag news:3f2fa0f0@quokka.wn.com.au...
That stops the compile error, but when i try to submit changes to a field I get this 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.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 100: strText = Ctype(e.Item.Cells(i).Controls(0), Textbox).Text
Line 101: if strText <> "" then
Line 102: ds.Tables("tblUsers").Rows(e.Item.ItemIndex)(j) = strText
Line 103: j = j + 1
Line 104: else

Source File: c:\inetpub\wwwroot\day10\2.aspx Line: 102

Stack Trace:

[NullReferenceException: Object reference not set to an instance of an object.]
ASP._2_aspx.UpdateDataStore(DataGridCommandEventAr gs e) in c:\inetpub\wwwroot\day10\2.aspx:102
ASP._2_aspx.dgData_Update(Object Sender, DataGridCommandEventArgs e) in c:\inetpub\wwwroot\day10\2.aspx:77
System.Web.UI.WebControls.DataGrid.OnUpdateCommand (DataGridCommandEventArgs e) +109
System.Web.UI.WebControls.DataGrid.OnBubbleEvent(O bject source, EventArgs e) +507
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26
System.Web.UI.WebControls.DataGridItem.OnBubbleEve nt(Object source, EventArgs e) +106
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26
System.Web.UI.WebControls.LinkButton.OnCommand(Com mandEventArgs e) +121
System.Web.UI.WebControls.LinkButton.System.Web.UI .IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +115
System.Web.UI.Page.RaisePostBackEvent(IPostBackEve ntHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCol lection postData) +138
System.Web.UI.Page.ProcessRequestMain() +1277




"Jerry" <Jerry@Jerry.com> wrote in message news:bgo652$64t$05$1@news.t-online.com...

I am wondering that the Book example is running.............

In my opionon it can't.

In the Book Exmple you see the Function UpdateDataStore


function UpdateDataStore(e as DataGridCommandEventArgs) as boolean

You see that it needs a Parameter................


Change
if UpdateDataStore then

to
if UpdateDataStore(e) then

Maybe if the Codeexample hasn't more Bugs it works......





"compuglobalhypermeganetz0r" <spam@someone.com> schrieb im Newsbeitrag news:3f2f972d@quokka.wn.com.au...
I am using the following code from a book example but cant seem to get it to work, I get an error as seen below, any ideas?

Full code listing -> [url]http://www.aspalliance.com/nothingmn/codex.aspx?codeid=720[/url]


Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC30455: Argument not specified for parameter 'e' of 'Public Function UpdateDataStore(e As System.Web.UI.WebControls.DataGridCommandEventArgs ) As Boolean'.

Source Error:


Line 75:
Line 76: sub dgData_Update(Sender as Object, e as DataGridCommandEventArgs)
Line 77: if UpdateDataStore then
Line 78: FillDataGrid(-1)
Line 79: end if

Source File: c:\inetpub\wwwroot\day10\2.aspx Line: 77