How can I keep the dropdownlist from populating my gridview?

  • Thread starter Thread starter needin4mation
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needin4mation

I have a gridview and a dropdownlist. If I change the ddl, the
gridview populates. That is what I want. But what I don't want is for
it to happen the first time they get to the page. I know I can add a
"Select Item," but is that the correct way to do it? I don't want it
to hit the database at all the first time the page loads. I have done
everything through visual studio and was trying to see if I could do
this with no code behind. Thanks.
 
So I cannot do this solely using the GUI? I will have to code it in
the page_load? Thanks.


Eliyahu said:
You need to check page property IsPostBack.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


I have a gridview and a dropdownlist. If I change the ddl, the
gridview populates. That is what I want. But what I don't want is for
it to happen the first time they get to the page. I know I can add a
"Select Item," but is that the correct way to do it? I don't want it
to hit the database at all the first time the page loads. I have done
everything through visual studio and was trying to see if I could do
this with no code behind. Thanks.
Click to expand...
Click to expand...
 
Yes.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


So I cannot do this solely using the GUI? I will have to code it in
the page_load? Thanks.


Eliyahu said:
You need to check page property IsPostBack.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


I have a gridview and a dropdownlist. If I change the ddl, the
gridview populates. That is what I want. But what I don't want is for
it to happen the first time they get to the page. I know I can add a
"Select Item," but is that the correct way to do it? I don't want it
to hit the database at all the first time the page loads. I have done
everything through visual studio and was trying to see if I could do
this with no code behind. Thanks.
Click to expand...
Click to expand...
Click to expand...
 
Here's my problem. Since I put everything in the front I'm not sure
what to put in the page behind. It's got the objectdatasource control
in the "regular" .aspx page.

How can I tell the grid not to fire if all the "stuff" is in the .aspx
file?


Eliyahu said:
Yes.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


So I cannot do this solely using the GUI? I will have to code it in
the page_load? Thanks.


Eliyahu said:
You need to check page property IsPostBack.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


I have a gridview and a dropdownlist. If I change the ddl, the
gridview populates. That is what I want. But what I don't want is for
it to happen the first time they get to the page. I know I can add a
"Select Item," but is that the correct way to do it? I don't want it
to hit the database at all the first time the page loads. I have done
everything through visual studio and was trying to see if I could do
this with no code behind. Thanks.
Click to expand...
Click to expand...
Click to expand...
 
Are you asking how to add some code to an aspx page? You can add a
service-side script to the aspx page. Would you call it "in the front"? You
can't use asp.net without writing a line of code. This is a sort of
professional technology, it needs a professional approach.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


Here's my problem. Since I put everything in the front I'm not sure
what to put in the page behind. It's got the objectdatasource control
in the "regular" .aspx page.

How can I tell the grid not to fire if all the "stuff" is in the .aspx
file?


Eliyahu said:
Yes.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


So I cannot do this solely using the GUI? I will have to code it in
the page_load? Thanks.


Eliyahu Goldin wrote:
You need to check page property IsPostBack.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


I have a gridview and a dropdownlist. If I change the ddl, the
gridview populates. That is what I want. But what I don't want is
for
it to happen the first time they get to the page. I know I can add
a
"Select Item," but is that the correct way to do it? I don't want
it
to hit the database at all the first time the page loads. I have
done
everything through visual studio and was trying to see if I could do
this with no code behind. Thanks.
Click to expand...
Click to expand...
Click to expand...
 
No, I guess I wasn't clear. Sorry. I don't mind coding. I shouldn't
have to in this case, at least I thought.

I ended up being right and half right to begin with. I added an item
to my dropdownlist (-- select item --) and then set the value to -1, as
there is no -1 in my database. I then set the AppendDataBoundItems
setting in the dropdownlist to true so that the new --select item--
wouldn't be lost when the dropdownlist was populated by items from the
database. No coding beyond the .aspx page necessary.

Eliyahu said:
Are you asking how to add some code to an aspx page? You can add a
service-side script to the aspx page. Would you call it "in the front"? You
can't use asp.net without writing a line of code. This is a sort of
professional technology, it needs a professional approach.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


Here's my problem. Since I put everything in the front I'm not sure
what to put in the page behind. It's got the objectdatasource control
in the "regular" .aspx page.

How can I tell the grid not to fire if all the "stuff" is in the .aspx
file?


Eliyahu said:
Yes.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


So I cannot do this solely using the GUI? I will have to code it in
the page_load? Thanks.


Eliyahu Goldin wrote:
You need to check page property IsPostBack.

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]


I have a gridview and a dropdownlist. If I change the ddl, the
gridview populates. That is what I want. But what I don't want is
for
it to happen the first time they get to the page. I know I can add
a
"Select Item," but is that the correct way to do it? I don't want
it
to hit the database at all the first time the page loads. I have
done
everything through visual studio and was trying to see if I could do
this with no code behind. Thanks.
Click to expand...
Click to expand...
Click to expand...
 
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