object instantiation

[Carlos]

Hi all,

I have the following code snipet that is causing an exception when
processing
a gridview with checkboxes How can I fix it ? Thanks in advance, Carlos.

GridViewRow row = GridView7.Rows;

bool isChecked = ((CheckBox)row.FindControl("chkSelect")).Checked;

 

[Robert Porter]

It would be helpful to know what the exception is?

Hi all,

I have the following code snipet that is causing an exception when
processing
a gridview with checkboxes How can I fix it ? Thanks in advance, Carlos.

GridViewRow row = GridView7.Rows;

bool isChecked = ((CheckBox)row.FindControl("chkSelect")).Checked;

 

[Carlos]

Hi Robert,

sure, and I am sorry. it is:

Object reference not set to an instance of an object

Thanks again,

Carlos.

It would be helpful to know what the exception is?

Hi all,

I have the following code snipet that is causing an exception when
processing
a gridview with checkboxes How can I fix it ? Thanks in advance, Carlos.

GridViewRow row = GridView7.Rows;

bool isChecked = ((CheckBox)row.FindControl("chkSelect")).Checked;

 

[sloan]

On that kind of situation, you need to break it apart, to figure out the
exact cause.

GridViewRow row = GridView7.Rows;

//is row null?

object abc = row.FindControl("chkSelect");

//is abc null?

CheckBox ccc = abc as CheckBox;

//is ccc null?

bool isChecked = ccc.Checked;

...

 

[Carlos]

Thanks Sloan,

I inspected the gridview row count first, and I got 10,
then each particular row, and the instances were there.

any other suggestion?

Thanks again,

Carlos.

On that kind of situation, you need to break it apart, to figure out the
exact cause.

GridViewRow row = GridView7.Rows;

//is row null?

object abc = row.FindControl("chkSelect");

//is abc null?

CheckBox ccc = abc as CheckBox;

//is ccc null?

bool isChecked = ccc.Checked;

..

Hi all,

I have the following code snipet that is causing an exception when
processing
a gridview with checkboxes How can I fix it ? Thanks in advance, Carlos.

GridViewRow row = GridView7.Rows;

bool isChecked = ((CheckBox)row.FindControl("chkSelect")).Checked;

 

[Laurent Bugnion]

Hi,

Thanks Sloan,

I inspected the gridview row count first, and I got 10,
then each particular row, and the instances were there.

any other suggestion?

Thanks again,

Carlos.

Obviously, either "GridView7" or "row" are null, or "chkSelect" doesn't
exist. I think it's the later one. "Object not set" exceptions are
fairly easy to trace, though, especially in debug mode.

Set a breakpoint in your code, and inspect what
row.FindControl("chkSelect") evaluates to. I am pretty sure that it's
null. Maybe you mistyped the ID.

HTH,
Laurent

 

[Carlos]

Thank you Laurent! that did it indeed, I had the 't' appearing double
in the control code.

Thanks again!

Carlos.