get data from gidview to Datatable

Question

0.00/5 (No votes)

See more:

i have data in gridview from text file .
How to get the data from gridview to Datatable .????
By Looping I can Do that !!!!!
Is there any other way or function to get data in datatable from Gridview without loops?????

:omg: :omg:

My code

C#

private DataTable Get_file(string strFileName) 
    {
                   //Create new DataTable.            
            DataTable table = CreateTable();
            string fileContents=string.Empty;
          //  string[] fileinfo;
            string line;
            DataTable dt =  CreateTable();
            DataRow row;
            try
            {
                string OpenPath = Server.MapPath("..//Attendence_Sheets//" + strFileName.Trim());
                string FILENAME = OpenPath;
                //Get a StreamReader class that can be used to read the file
                StreamReader objStreamReader;
                objStreamReader = System.IO.File.OpenText(FILENAME);

                while ((line =objStreamReader.ReadLine())!=null)
                {
                    //int intLength=30;
                    
                    
                    string emp_att=line.Substring(0,28);
                   // fileinfo = line.Split(contant);
                    row = dt.NewRow();
                   
                            row["MachineId"] = emp_att.Substring(0,2);
                            row["Date"]=emp_att.Substring(2,8);
                            row["Time"]=emp_att.Substring(10,4);
                            row["Status"]=emp_att.Substring(14,4);
                            row["Emp Id"]=int.Parse(emp_att.Substring(18,10));
                   
                    dt.Rows.Add(row);
                    
                
                }


                objStreamReader.Close();
                gvAttendence.DataSource = dt;
                gvAttendence.DataBind();
                return dt;
            }
            finally
            { 
            }
    }

  private int Insert_Monthlyattendence()
    {
        int intResult = 0;
           DataTable dt =new DataTable();

dt=gvAttendence as datatable
if(dt.rows.count>0)
{
}

// Its giving me Error Objecr Reference not set to the instance of an object

    
    }

Posted 18-Mar-10 19:46pm

qasimidl

Updated 19-Mar-10 1:06am

Ankur^\m/

v3

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Christian Graus · Answer 1 · 2010-03-18T20:10:00

qasimidl wrote:
Is there any other way or function to get data in datatable from Gridview without loops?????

I don't see why you'd use a loop. Where is your datatable going ? Why do you need one ? There's really no way to answer this question, that I can see. Perhaps if you posted some code and explained what you're trying to do. The most common approach is to store new data in your data source and rebind to it. If your data source is a text file, then yes, you need to write the code to parse it.

Sandeep Mewara · Answer 2 · 2010-03-18T20:17:00

Use DataGrid1.DataSource as DataTable

If you have defined a DataSet/Datatable as a datasource to your Gridview/Datagrid then you don't need to loop through.

Here:

C#

DataTable dt = new DataTable();
dt.Columns.Add("ID");
dt.Columns.Add("IDValue");
dt.Rows.Add("1", "One");
dt.Rows.Add("12", "One2");
dt.Rows.Add("13", "One3");
dt.Rows.Add("14", "One4");
dt.Rows.Add("15", "One5");
DataGrid1.DataSource = dt;
DataGrid1.DataBind();

C#

protected void Button1_Click(object sender, EventArgs e)
{
    DataTable dt;
    dt = DataGrid1.DataSource as DataTable;
    // you got datatable of Datagrid in dt now!
}

get data from gidview to Datatable

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0