ASP.NET

2-Aug-07 21:32

Hello,

I have a gridview and I have an 'RowDataBound' event on it. To perform some operations on each row of the grid view i have to check below condition:
if e.Row.RowType == DataControlRowType.DataRow

But the first row and the last row are treated as 'DataControlRowType.Header' and 'DataControlRowType.Footer', Instead the first and last row are also DataRow. Please suggest how can I solve this.

I tried using below condition
if (e.Row.RowType == DataControlRowType.DataRow) || (e.Row.RowType ==
DataControlRowType.Header)

but in the above case, the below statement throws error
DataRowView rowView = (DataRowView)e.Row.DataItem

rowview will be NULL and I will get an error 'Object not set'

Pavas

Talal Sultan2-Aug-07 21:55

Talal Sultan

2-Aug-07 21:55

hi,

I am not sure you can cast e.Row.DataItem into a DataRowView because e.Row is a GridViewRow and not a DataRow, which is not exactly the same.

To access individual columns of a gridview row, I use the following (in RowDataBound event method):

GridViewRow row = e.Row;
TableCell tcell = row.Cells[0]; // this is to access the first column for example
string temp = tcell.Text; // gets the text of that cell

Hope this helps.

Talal

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning."
--Rich Cook

mpavas2-Aug-07 22:12

2-Aug-07 22:12

My problem is I want to access fist row and but first row is treated as header and last row is treated as footer.

Hence when I check below condition, It thows error.
if (e.Row.RowType == DataControlRowType.DataRow )

Pavas

Talal Sultan2-Aug-07 22:28

Talal Sultan

2-Aug-07 22:28

Ok, if you're using the statement you wrote in the post, I believe it is normal that you get an "object not set" error.

You said that you use the following expression:

if (e.Row.RowType == DataControlRowType.DataRow) || (e.Row.RowType == DataControlRowType.Header)

This indicates that if the row is either a data row or a header do something. In case it is a header, there is no data in it and it might throw an error if you attempt to access something that is not there.

I have never used DataItem so I cannot tell you for sure but what I'm sure of is that I use the following and it works very well:

GridViewRow row = e.Row;
if (row.RowType == DataControlRowType.Header)
{
  // do something
}

if (row.RowType == DataControlRowType.DataRow)
{
  // do something
}

It could help if you post more code to see exactly what is written.

Talal

mpavas2-Aug-07 22:59

2-Aug-07 22:59

Yup I agree with you.

The code is as below:
if (e.Row.RowType == DataControlRowType.DataRow )
{
DataRowView rowView = (DataRowView)e.Row.DataItem;
string Code = rowView["CODE"].ToString();
}

Thie fist row doesn't match the condition as row type is DataControlRowType.Header.

But the first row has some data and i want the fist row shouldnt be a DataControlRowType.Header.

Does this helps you to solve the problem

Pavas

Talal Sultan2-Aug-07 23:15

Talal Sultan

2-Aug-07 23:15

You can choose to remove the header from the GridView if you don't want it at all.

I have tried writing similar lines in my code. I didn't get any error with DataRowView rowView = (DataRowView)e.Row.DataItem. Now I'm thinking that maybe the data binding was not done properly for the GridView? If the data binding was not done, DataItem would be empty and the cast (DataRowView)e.Row.DataItem could thrown an error. I don't see what else could be wrong. Maybe someone can provide a fresh perspective.

Talal

mpavas2-Aug-07 23:39

Create notepad in runtime asp.net

2-Aug-07 23:39

I am not sure why this is happening...? Could some one help on this

Pavas

praveenkumar_mca2-Aug-07 21:11

praveenkumar_mca

2-Aug-07 21:11

Hi guys how to creat note pad in runtime in asp.net plz give some sample code

Praveen Kumar.R

Re: Create notepad in runtime asp.net

Christian Graus2-Aug-07 21:26

Re: Create notepad in runtime asp.net

2-Aug-07 21:26

Your question is illogical. You can't create a notepad in ASP.NET, because you can't save files locally. You can trivially add a text control, and save the contents to the server, however. What do you mean by 'in runtime'. What is it you want to do ?

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Edwin Syarief2-Aug-07 23:13

Edwin Syarief

2-Aug-07 23:13

Did U mean text editor ?

U should use javascript to ceate that.

www.fckeditor.net

Hope this will help U

Regard,

Edwin

conver the c# code to corresponding vb.net code

biswa472-Aug-07 20:43

biswa47

2-Aug-07 20:43

hi,
below this is the code written in C#.net .i want the correspond vb.net code. thanks in advance...

" string distict = ((DropDownList)MyGridView.FooterRow.FindControl("ddlDistrict")).SelectedValue.ToString().Trim();"

where MyGrid=id of the gridview
ddlDistrict=id of the ddl which is taken in side the footer template of gridview

Re: conver the c# code to corresponding vb.net code

Christian Graus2-Aug-07 21:33

Re: conver the c# code to corresponding vb.net code

2-Aug-07 21:33

Please don't cross post.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Imran Khan Pathan2-Aug-07 23:31

need validation Expression string

2-Aug-07 23:31

dim distict  as string=ctype(MyGridView.FooterRow.FindControl("ddlDistrict"),DropDownList).SelectedValue.ToString().Trim()

Best regard

Pathan

---------------------------------------------------

Imran Khan Pathan2-Aug-07 20:19

2-Aug-07 20:19

Hi friends

I need validation expression string for 'XXX XXX' format

Thanks In advance

pathan

---------------------------------------------------

Christian Graus2-Aug-07 20:25

2-Aug-07 20:25

What do the X's mean ? you probably mean you need to build a regex ? Expresso is a great tool for that.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Anurag Gandhi2-Aug-07 22:26

Anurag Gandhi

2-Aug-07 22:26

Use Regular Expression Validator.

\s{3} \s{4}

Anurag Gandhi.
http://www.softgandhi.co.nr
Life is a computer program and every one is the programmer of his own life.

Imran Khan Pathan2-Aug-07 23:33

2-Aug-07 23:33

Thanks

Pathan

---------------------------------------------------

shweta@syscom2-Aug-07 23:07

shweta@syscom

2-Aug-07 23:07

hi,
This is the regular expression for U.S Phone number(XXX-XXX-XXXX)
((\(\d{3}\) ?)|(\d{3}-))?\d{3}-\d{4}

You can edit it and use it for your work accordingly..

Smile | :)

SHWETA!!

Imran Khan Pathan2-Aug-07 23:35

2-Aug-07 23:35

Thanks

Pathan

---------------------------------------------------

session time out

praveenkumar_mca2-Aug-07 20:09

praveenkumar_mca

2-Aug-07 20:09

Hi guys, iam using session in my project some session variables are interger some other string. when session expired i click next button they show error, so i want to validate when session is expired. so please give some ideas how to validate

Praveen Kumar.R

Re: session time out

Christian Graus2-Aug-07 20:15