I am trying to assign a value from DataItem to a variable but keeping getting "
Object reference not set to an instance of an object" error message.
what i am missing?
public void create_ddl(object s, RepeaterItemEventArgs e)
{
string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
ListItemType.AlternatingItem)
{
DropDownList dd = (DropDownList)e.Item.FindControl("ddl");
if(dd !=null)
{
dd.DataSource = bs.drPriority();
dd.DataTextField = "text";
dd.DataValueField = "value";
dd.DataBind();
dd.Items.FindByValue(dr["Priority"].ToString()).Selected
= true;
}
}
}
11  1371 
huzz wrote: I am trying to assign a value from DataItem to a variable but keeping
getting " Object reference not set to an instance of an object" error
message.
what i am missing?
public void create_ddl(object s, RepeaterItemEventArgs e)
{
string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
if (e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
{
DropDownList dd =
(DropDownList)e.Item.FindControl("ddl");
if(dd !=null)
{
dd.DataSource = bs.drPriority();
What is "bs" ??
dd.DataTextField = "text";
dd.DataValueField = "value";
dd.DataBind();
dd.Items.FindByValue(dr["Priority"].ToString()).Selected = true;
}
}
}
It would help if you specify the line the error is in.
Hans Kesting
Hi Hans
Here is the line no:
Line 57: string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
"Hans Kesting" wrote: huzz wrote: I am trying to assign a value from DataItem to a variable but keeping
getting " Object reference not set to an instance of an object" error
message.
what i am missing?
public void create_ddl(object s, RepeaterItemEventArgs e)
{
string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
if (e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
{
DropDownList dd =
(DropDownList)e.Item.FindControl("ddl");
if(dd !=null)
{
dd.DataSource = bs.drPriority();
What is "bs" ??
dd.DataTextField = "text";
dd.DataValueField = "value";
dd.DataBind();
dd.Items.FindByValue(dr["Priority"].ToString()).Selected = true;
}
}
}
It would help if you specify the line the error is in.
Hans Kesting
e.Item.DataItem is null. The problem is you are checking for ItemType after
getting the categoryName. However, if you are in a headerTemplate or a
footerTemplate, e.Item.DataItem will be null. Simply move that code inside
your if statement:
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
ListItemType.AlternatingItem){
string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
...
}
should work
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:B4**********************************@microsof t.com... Hi Hans
Here is the line no:
Line 57: string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
"Hans Kesting" wrote:
huzz wrote: I am trying to assign a value from DataItem to a variable but keeping
getting " Object reference not set to an instance of an object" error
message.
what i am missing?
public void create_ddl(object s, RepeaterItemEventArgs e)
{
string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
if (e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
{
DropDownList dd =
(DropDownList)e.Item.FindControl("ddl");
if(dd !=null)
{
dd.DataSource = bs.drPriority();
What is "bs" ??
dd.DataTextField = "text";
dd.DataValueField = "value";
dd.DataBind();
dd.Items.FindByValue(dr["Priority"].ToString()).Selected = true;
}
}
}
It would help if you specify the line the error is in.
Hans Kesting
karl thanks for your quick response.. after i moved the line of code inside
the if statement and now getting this message
"Specified cast is not valid. "
Line 64: string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
"Karl Seguin" wrote: e.Item.DataItem is null. The problem is you are checking for ItemType after
getting the categoryName. However, if you are in a headerTemplate or a
footerTemplate, e.Item.DataItem will be null. Simply move that code inside
your if statement:
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
ListItemType.AlternatingItem){
string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
...
}
should work
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:B4**********************************@microsof t.com... Hi Hans
Here is the line no:
Line 57: string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
"Hans Kesting" wrote:
huzz wrote:
> I am trying to assign a value from DataItem to a variable but keeping
> getting " Object reference not set to an instance of an object" error
> message.
>
> what i am missing?
>
> public void create_ddl(object s, RepeaterItemEventArgs e)
> {
>
> string categoryName =
> ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
>
> if (e.Item.ItemType == ListItemType.Item ||
> e.Item.ItemType == ListItemType.AlternatingItem)
> {
>
> DropDownList dd =
> (DropDownList)e.Item.FindControl("ddl");
>
> if(dd !=null)
> {
> dd.DataSource = bs.drPriority();
What is "bs" ??
> dd.DataTextField = "text";
> dd.DataValueField = "value";
> dd.DataBind();
>
> dd.Items.FindByValue(dr["Priority"].ToString()).Selected = true;
>
> }
>
> }
> }
It would help if you specify the line the error is in.
Hans Kesting
What are you binding your repeater to?
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:0E**********************************@microsof t.com... karl thanks for your quick response.. after i moved the line of code
inside the if statement and now getting this message
"Specified cast is not valid. "
Line 64: string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
"Karl Seguin" wrote:
e.Item.DataItem is null. The problem is you are checking for ItemType
after getting the categoryName. However, if you are in a headerTemplate or a
footerTemplate, e.Item.DataItem will be null. Simply move that code
inside your if statement:
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
ListItemType.AlternatingItem){
string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
...
}
should work
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:B4**********************************@microsof t.com... Hi Hans
Here is the line no:
Line 57: string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
"Hans Kesting" wrote:
> huzz wrote:
> > I am trying to assign a value from DataItem to a variable but
keeping > > getting " Object reference not set to an instance of an object"
error > > message.
> >
> > what i am missing?
> >
> > public void create_ddl(object s, RepeaterItemEventArgs e)
> > {
> >
> > string categoryName =
> > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> >
> > if (e.Item.ItemType == ListItemType.Item ||
> > e.Item.ItemType == ListItemType.AlternatingItem)
> > {
> >
> > DropDownList dd =
> > (DropDownList)e.Item.FindControl("ddl");
> >
> > if(dd !=null)
> > {
> > dd.DataSource = bs.drPriority();
>
> What is "bs" ??
>
> > dd.DataTextField = "text";
> > dd.DataValueField = "value";
> > dd.DataBind();
> >
> > dd.Items.FindByValue(dr["Priority"].ToString()).Selected = true;
> >
> > }
> >
> > }
> > }
>
> It would help if you specify the line the error is in.
>
> Hans Kesting
>
>
>
The repeater is binded to datareader
"Karl Seguin" wrote: What are you binding your repeater to?
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:0E**********************************@microsof t.com... karl thanks for your quick response.. after i moved the line of code
inside the if statement and now getting this message
"Specified cast is not valid. "
Line 64: string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
"Karl Seguin" wrote:
e.Item.DataItem is null. The problem is you are checking for ItemType after getting the categoryName. However, if you are in a headerTemplate or a
footerTemplate, e.Item.DataItem will be null. Simply move that code inside your if statement:
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
ListItemType.AlternatingItem){
string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
...
}
should work
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:B4**********************************@microsof t.com...
> Hi Hans
>
> Here is the line no:
> Line 57: string categoryName =
> ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
>
>
> "Hans Kesting" wrote:
>
> > huzz wrote:
> > > I am trying to assign a value from DataItem to a variable but keeping > > > getting " Object reference not set to an instance of an object" error > > > message.
> > >
> > > what i am missing?
> > >
> > > public void create_ddl(object s, RepeaterItemEventArgs e)
> > > {
> > >
> > > string categoryName =
> > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > >
> > > if (e.Item.ItemType == ListItemType.Item ||
> > > e.Item.ItemType == ListItemType.AlternatingItem)
> > > {
> > >
> > > DropDownList dd =
> > > (DropDownList)e.Item.FindControl("ddl");
> > >
> > > if(dd !=null)
> > > {
> > > dd.DataSource = bs.drPriority();
> >
> > What is "bs" ??
> >
> > > dd.DataTextField = "text";
> > > dd.DataValueField = "value";
> > > dd.DataBind();
> > >
> > > dd.Items.FindByValue(dr["Priority"].ToString()).Selected = true;
> > >
> > > }
> > >
> > > }
> > > }
> >
> > It would help if you specify the line the error is in.
> >
> > Hans Kesting
> >
> >
> >
Try casting it to DbDataRecord (I think)
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:74**********************************@microsof t.com... The repeater is binded to datareader
"Karl Seguin" wrote:
What are you binding your repeater to?
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:0E**********************************@microsof t.com... karl thanks for your quick response.. after i moved the line of code
inside the if statement and now getting this message
"Specified cast is not valid. "
Line 64: string categoryName =
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
"Karl Seguin" wrote:
> e.Item.DataItem is null. The problem is you are checking for
ItemType after > getting the categoryName. However, if you are in a headerTemplate
or a > footerTemplate, e.Item.DataItem will be null. Simply move that code
inside > your if statement:
>
> if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
> ListItemType.AlternatingItem){
> string categoryName =
> ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> ...
> }
>
> should work
>
> Karl
> --
> MY ASP.Net tutorials
> http://www.openmymind.net/
>
>
> "huzz" <hu**@discussions.microsoft.com> wrote in message
> news:B4**********************************@microsof t.com...
> > Hi Hans
> >
> > Here is the line no:
> > Line 57: string categoryName =
> > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> >
> >
> > "Hans Kesting" wrote:
> >
> > > huzz wrote:
> > > > I am trying to assign a value from DataItem to a variable but
keeping > > > > getting " Object reference not set to an instance of an
object" error > > > > message.
> > > >
> > > > what i am missing?
> > > >
> > > > public void create_ddl(object s, RepeaterItemEventArgs e)
> > > > {
> > > >
> > > > string categoryName =
> > > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > > >
> > > > if (e.Item.ItemType == ListItemType.Item ||
> > > > e.Item.ItemType == ListItemType.AlternatingItem)
> > > > {
> > > >
> > > > DropDownList dd =
> > > > (DropDownList)e.Item.FindControl("ddl");
> > > >
> > > > if(dd !=null)
> > > > {
> > > > dd.DataSource = bs.drPriority();
> > >
> > > What is "bs" ??
> > >
> > > > dd.DataTextField = "text";
> > > > dd.DataValueField = "value";
> > > > dd.DataBind();
> > > >
> > > > dd.Items.FindByValue(dr["Priority"].ToString()).Selected =
true; > > > >
> > > > }
> > > >
> > > > }
> > > > }
> > >
> > > It would help if you specify the line the error is in.
> > >
> > > Hans Kesting
> > >
> > >
> > >
>
>
>
sorry karl i am very new to asp.net.. what is DbDataReader? can you show me
code?
Many thanks for your help
"Karl Seguin" wrote: Try casting it to DbDataRecord (I think)
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:74**********************************@microsof t.com... The repeater is binded to datareader
"Karl Seguin" wrote:
What are you binding your repeater to?
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:0E**********************************@microsof t.com...
> karl thanks for your quick response.. after i moved the line of code
inside
> the if statement and now getting this message
>
> "Specified cast is not valid. "
>
> Line 64: string categoryName =
> ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
>
>
> "Karl Seguin" wrote:
>
> > e.Item.DataItem is null. The problem is you are checking for ItemType after
> > getting the categoryName. However, if you are in a headerTemplate or a > > footerTemplate, e.Item.DataItem will be null. Simply move that code
inside
> > your if statement:
> >
> > if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
> > ListItemType.AlternatingItem){
> > string categoryName =
> > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > ...
> > }
> >
> > should work
> >
> > Karl
> > --
> > MY ASP.Net tutorials
> > http://www.openmymind.net/
> >
> >
> > "huzz" <hu**@discussions.microsoft.com> wrote in message
> > news:B4**********************************@microsof t.com...
> > > Hi Hans
> > >
> > > Here is the line no:
> > > Line 57: string categoryName =
> > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > >
> > >
> > > "Hans Kesting" wrote:
> > >
> > > > huzz wrote:
> > > > > I am trying to assign a value from DataItem to a variable but
keeping
> > > > > getting " Object reference not set to an instance of an object" error
> > > > > message.
> > > > >
> > > > > what i am missing?
> > > > >
> > > > > public void create_ddl(object s, RepeaterItemEventArgs e)
> > > > > {
> > > > >
> > > > > string categoryName =
> > > > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > > > >
> > > > > if (e.Item.ItemType == ListItemType.Item ||
> > > > > e.Item.ItemType == ListItemType.AlternatingItem)
> > > > > {
> > > > >
> > > > > DropDownList dd =
> > > > > (DropDownList)e.Item.FindControl("ddl");
> > > > >
> > > > > if(dd !=null)
> > > > > {
> > > > > dd.DataSource = bs.drPriority();
> > > >
> > > > What is "bs" ??
> > > >
> > > > > dd.DataTextField = "text";
> > > > > dd.DataValueField = "value";
> > > > > dd.DataBind();
> > > > >
> > > > > dd.Items.FindByValue(dr["Priority"].ToString()).Selected = true; > > > > >
> > > > > }
> > > > >
> > > > > }
> > > > > }
> > > >
> > > > It would help if you specify the line the error is in.
> > > >
> > > > Hans Kesting
> > > >
> > > >
> > > >
> >
> >
> >
string categoryName =
((DbDataRecord)e.Item.DataItem)["FaultDesc"].ToString();
it's in the System.Data.Common namespace, so either add
using System.Data.Common atop your file, or do
string categoryName =
((System.Data.Common.DbDataRecord)e.Item.DataItem)["FaultDesc"].ToString();
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:45**********************************@microsof t.com... sorry karl i am very new to asp.net.. what is DbDataReader? can you show
me code?
Many thanks for your help
"Karl Seguin" wrote:
Try casting it to DbDataRecord (I think)
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:74**********************************@microsof t.com... The repeater is binded to datareader
"Karl Seguin" wrote:
> What are you binding your repeater to?
>
> Karl
>
> --
> MY ASP.Net tutorials
> http://www.openmymind.net/
>
>
> "huzz" <hu**@discussions.microsoft.com> wrote in message
> news:0E**********************************@microsof t.com...
> > karl thanks for your quick response.. after i moved the line of
code > inside
> > the if statement and now getting this message
> >
> > "Specified cast is not valid. "
> >
> > Line 64: string categoryName =
> > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> >
> >
> > "Karl Seguin" wrote:
> >
> > > e.Item.DataItem is null. The problem is you are checking for
ItemType > after
> > > getting the categoryName. However, if you are in a
headerTemplate or a > > > footerTemplate, e.Item.DataItem will be null. Simply move that
code > inside
> > > your if statement:
> > >
> > > if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
> > > ListItemType.AlternatingItem){
> > > string categoryName =
> > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > > ...
> > > }
> > >
> > > should work
> > >
> > > Karl
> > > --
> > > MY ASP.Net tutorials
> > > http://www.openmymind.net/
> > >
> > >
> > > "huzz" <hu**@discussions.microsoft.com> wrote in message
> > > news:B4**********************************@microsof t.com...
> > > > Hi Hans
> > > >
> > > > Here is the line no:
> > > > Line 57: string categoryName =
> > > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > > >
> > > >
> > > > "Hans Kesting" wrote:
> > > >
> > > > > huzz wrote:
> > > > > > I am trying to assign a value from DataItem to a variable
but > keeping
> > > > > > getting " Object reference not set to an instance of an
object" > error
> > > > > > message.
> > > > > >
> > > > > > what i am missing?
> > > > > >
> > > > > > public void create_ddl(object s, RepeaterItemEventArgs e)
> > > > > > {
> > > > > >
> > > > > > string categoryName =
> > > > > >
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString(); > > > > > >
> > > > > > if (e.Item.ItemType == ListItemType.Item ||
> > > > > > e.Item.ItemType == ListItemType.AlternatingItem)
> > > > > > {
> > > > > >
> > > > > > DropDownList dd =
> > > > > > (DropDownList)e.Item.FindControl("ddl");
> > > > > >
> > > > > > if(dd !=null)
> > > > > > {
> > > > > > dd.DataSource = bs.drPriority();
> > > > >
> > > > > What is "bs" ??
> > > > >
> > > > > > dd.DataTextField = "text";
> > > > > > dd.DataValueField = "value";
> > > > > > dd.DataBind();
> > > > > >
> > > > > > dd.Items.FindByValue(dr["Priority"].ToString()).Selected =
true; > > > > > >
> > > > > > }
> > > > > >
> > > > > > }
> > > > > > }
> > > > >
> > > > > It would help if you specify the line the error is in.
> > > > >
> > > > > Hans Kesting
> > > > >
> > > > >
> > > > >
> > >
> > >
> > >
>
>
>
Karl THANK U SO MUCH.. its working now :)
just wondering why it didn't work with DataRowView.. and what is DbDataRecord?
Many thanks again for your help..
PS: your article on databinding is exellent.. :)
"Karl Seguin" wrote: string categoryName =
((DbDataRecord)e.Item.DataItem)["FaultDesc"].ToString();
it's in the System.Data.Common namespace, so either add
using System.Data.Common atop your file, or do
string categoryName =
((System.Data.Common.DbDataRecord)e.Item.DataItem)["FaultDesc"].ToString();
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:45**********************************@microsof t.com... sorry karl i am very new to asp.net.. what is DbDataReader? can you show
me code?
Many thanks for your help
"Karl Seguin" wrote:
Try casting it to DbDataRecord (I think)
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:74**********************************@microsof t.com...
> The repeater is binded to datareader
>
> "Karl Seguin" wrote:
>
> > What are you binding your repeater to?
> >
> > Karl
> >
> > --
> > MY ASP.Net tutorials
> > http://www.openmymind.net/
> >
> >
> > "huzz" <hu**@discussions.microsoft.com> wrote in message
> > news:0E**********************************@microsof t.com...
> > > karl thanks for your quick response.. after i moved the line of code > > inside
> > > the if statement and now getting this message
> > >
> > > "Specified cast is not valid. "
> > >
> > > Line 64: string categoryName =
> > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > >
> > >
> > > "Karl Seguin" wrote:
> > >
> > > > e.Item.DataItem is null. The problem is you are checking for
ItemType
> > after
> > > > getting the categoryName. However, if you are in a headerTemplate or a
> > > > footerTemplate, e.Item.DataItem will be null. Simply move that code > > inside
> > > > your if statement:
> > > >
> > > > if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType ==
> > > > ListItemType.AlternatingItem){
> > > > string categoryName =
> > > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > > > ...
> > > > }
> > > >
> > > > should work
> > > >
> > > > Karl
> > > > --
> > > > MY ASP.Net tutorials
> > > > http://www.openmymind.net/
> > > >
> > > >
> > > > "huzz" <hu**@discussions.microsoft.com> wrote in message
> > > > news:B4**********************************@microsof t.com...
> > > > > Hi Hans
> > > > >
> > > > > Here is the line no:
> > > > > Line 57: string categoryName =
> > > > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > > > >
> > > > >
> > > > > "Hans Kesting" wrote:
> > > > >
> > > > > > huzz wrote:
> > > > > > > I am trying to assign a value from DataItem to a variable but > > keeping
> > > > > > > getting " Object reference not set to an instance of an
object"
> > error
> > > > > > > message.
> > > > > > >
> > > > > > > what i am missing?
> > > > > > >
> > > > > > > public void create_ddl(object s, RepeaterItemEventArgs e)
> > > > > > > {
> > > > > > >
> > > > > > > string categoryName =
> > > > > > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString(); > > > > > > >
> > > > > > > if (e.Item.ItemType == ListItemType.Item ||
> > > > > > > e.Item.ItemType == ListItemType.AlternatingItem)
> > > > > > > {
> > > > > > >
> > > > > > > DropDownList dd =
> > > > > > > (DropDownList)e.Item.FindControl("ddl");
> > > > > > >
> > > > > > > if(dd !=null)
> > > > > > > {
> > > > > > > dd.DataSource = bs.drPriority();
> > > > > >
> > > > > > What is "bs" ??
> > > > > >
> > > > > > > dd.DataTextField = "text";
> > > > > > > dd.DataValueField = "value";
> > > > > > > dd.DataBind();
> > > > > > >
> > > > > > > dd.Items.FindByValue(dr["Priority"].ToString()).Selected =
true;
> > > > > > >
> > > > > > > }
> > > > > > >
> > > > > > > }
> > > > > > > }
> > > > > >
> > > > > > It would help if you specify the line the error is in.
> > > > > >
> > > > > > Hans Kesting
> > > > > >
> > > > > >
> > > > > >
> > > >
> > > >
> > > >
> >
> >
> >
>
Thanks for the kind words, but clearly my databinding arcticle was missing a
key piece of information :)
As I say in the article, when you bind to a dataset, datatable or dataview,
the individual items are of type DataRowView.
What I didn't say, is when you bind to a datareader, the individual items
are of type DbDataRecord. DbDataRecord is the underlaying common type that
all rows of an DataReader (OledbDataReader, SqlDataReader, OracleDataReader)
are based on :)
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:4B**********************************@microsof t.com... Karl THANK U SO MUCH.. its working now :)
just wondering why it didn't work with DataRowView.. and what is
DbDataRecord?
Many thanks again for your help..
PS: your article on databinding is exellent.. :)
"Karl Seguin" wrote:
string categoryName =
((DbDataRecord)e.Item.DataItem)["FaultDesc"].ToString();
it's in the System.Data.Common namespace, so either add
using System.Data.Common atop your file, or do
string categoryName =
((System.Data.Common.DbDataRecord)e.Item.DataItem)["FaultDesc"].ToString();
Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"huzz" <hu**@discussions.microsoft.com> wrote in message
news:45**********************************@microsof t.com... sorry karl i am very new to asp.net.. what is DbDataReader? can you
show me code?
Many thanks for your help
"Karl Seguin" wrote:
> Try casting it to DbDataRecord (I think)
>
> Karl
>
> --
> MY ASP.Net tutorials
> http://www.openmymind.net/
>
>
> "huzz" <hu**@discussions.microsoft.com> wrote in message
> news:74**********************************@microsof t.com...
> > The repeater is binded to datareader
> >
> > "Karl Seguin" wrote:
> >
> > > What are you binding your repeater to?
> > >
> > > Karl
> > >
> > > --
> > > MY ASP.Net tutorials
> > > http://www.openmymind.net/
> > >
> > >
> > > "huzz" <hu**@discussions.microsoft.com> wrote in message
> > > news:0E**********************************@microsof t.com...
> > > > karl thanks for your quick response.. after i moved the line
of code > > > inside
> > > > the if statement and now getting this message
> > > >
> > > > "Specified cast is not valid. "
> > > >
> > > > Line 64: string categoryName =
> > > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > > >
> > > >
> > > > "Karl Seguin" wrote:
> > > >
> > > > > e.Item.DataItem is null. The problem is you are checking
for > ItemType
> > > after
> > > > > getting the categoryName. However, if you are in a
headerTemplate > or a
> > > > > footerTemplate, e.Item.DataItem will be null. Simply move
that code > > > inside
> > > > > your if statement:
> > > > >
> > > > > if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType
== > > > > > ListItemType.AlternatingItem){
> > > > > string categoryName =
> > > > > ((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString();
> > > > > ...
> > > > > }
> > > > >
> > > > > should work
> > > > >
> > > > > Karl
> > > > > --
> > > > > MY ASP.Net tutorials
> > > > > http://www.openmymind.net/
> > > > >
> > > > >
> > > > > "huzz" <hu**@discussions.microsoft.com> wrote in message
> > > > > news:B4**********************************@microsof t.com...
> > > > > > Hi Hans
> > > > > >
> > > > > > Here is the line no:
> > > > > > Line 57: string categoryName =
> > > > > >
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString(); > > > > > >
> > > > > >
> > > > > > "Hans Kesting" wrote:
> > > > > >
> > > > > > > huzz wrote:
> > > > > > > > I am trying to assign a value from DataItem to a
variable but > > > keeping
> > > > > > > > getting " Object reference not set to an instance of
an > object"
> > > error
> > > > > > > > message.
> > > > > > > >
> > > > > > > > what i am missing?
> > > > > > > >
> > > > > > > > public void create_ddl(object s, RepeaterItemEventArgs
e) > > > > > > > > {
> > > > > > > >
> > > > > > > > string categoryName =
> > > > > > > >
((DataRowView)e.Item.DataItem).Row["FaultDesc"].ToString(); > > > > > > > >
> > > > > > > > if (e.Item.ItemType == ListItemType.Item ||
> > > > > > > > e.Item.ItemType == ListItemType.AlternatingItem)
> > > > > > > > {
> > > > > > > >
> > > > > > > > DropDownList dd =
> > > > > > > > (DropDownList)e.Item.FindControl("ddl");
> > > > > > > >
> > > > > > > > if(dd !=null)
> > > > > > > > {
> > > > > > > > dd.DataSource = bs.drPriority();
> > > > > > >
> > > > > > > What is "bs" ??
> > > > > > >
> > > > > > > > dd.DataTextField = "text";
> > > > > > > > dd.DataValueField = "value";
> > > > > > > > dd.DataBind();
> > > > > > > >
> > > > > > > >
dd.Items.FindByValue(dr["Priority"].ToString()).Selected = > true;
> > > > > > > >
> > > > > > > > }
> > > > > > > >
> > > > > > > > }
> > > > > > > > }
> > > > > > >
> > > > > > > It would help if you specify the line the error is in.
> > > > > > >
> > > > > > > Hans Kesting
> > > > > > >
> > > > > > >
> > > > > > >
> > > > >
> > > > >
> > > > >
> > >
> > >
> > >
> >
>
>
>
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