Why does my datagridview not select th first row ?

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Hi,
I have got a datagridview in my windows forms app, which is filled up with data, I have (nextButton) that is clicked to go through each and every row in the Grid. When ever I load my form its seems that whenever I click the next button the selection starts from the second row and not the first row.. why is this? is there anything I can do?

My code for datagridview

C#

SqlConnection conn = new SqlConnection(connection);
              SqlCommand db = new SqlCommand("select * from TblEmp where Emp_Title = 'Mr'", conn);
              SqlCommandBuilder builder = new SqlCommandBuilder(dataAdapter);
              dataAdapter = new SqlDataAdapter(db);
              dataset = new DataSet();
              dataAdapter.Fill(dataset, "TblEmp");
              dataGridView1.DataSource = dataset.Tables["TblEmp"];

Mycode for nextButton

C#

void NextRecord()
       {
           if ( RecordCounter < dataset.Tables[0].Rows.Count -1)
           {
               RecordCounter++;
               TxtDisplayQuestion.Text = dataset.Tables[0].Rows[ RecordCounter]["Emp_Title"].ToString();


           }

Thank you

Posted 24-Mar-14 7:15am

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Comments

Sergey Alexandrovich Kryukov 24-Mar-14 13:23pm

Why? Where did you select first line? Who told you that you nextButton should select first line?
—SA

3 solutions

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SarVJ · Accepted Answer · 2014-03-24T07:49:00

Solution 1

use your "RecordCounter++;" after the "TxtDisplayQuestion.Text = ..." code line.

Posted 24-Mar-14 7:49am

SarVJ

Krunal Rohit · Accepted Answer · 2014-03-24T08:02:00

Solution 2

Don't know about your schema, so give it a try..

C#

void NextRecord()
{
    if ( RecordCounter < dataset.Tables[0].Rows.Count -1)
    {
        TxtDisplayQuestion.Text = dataset.Tables[0].Rows[ RecordCounter]["Emp_Title"].ToString();
    }
    RecordCounter++;
}

-KR

Posted 24-Mar-14 8:02am

Krunal Rohit

thienthach · Accepted Answer · 2014-03-24T18:04:00

C#

//as first
void NextRecord()
       {
           if ( RecordCounter < dataset.Tables[0].Rows.Count -1)
           {
               RecordCounter++;//before RecordCounter= 0, after RecordCounter=1
               TxtDisplayQuestion.Text = dataset.Tables[0].Rows[ RecordCounter]["Emp_Title"].ToString(); //<= here: RecordCounter = 1 
 

           }

You can set RecordCounter = -1 as First or move code RecordCounter++; after set TxtDisplayQuestion.Text=...

C#

void NextRecord()
       {
           if ( RecordCounter < dataset.Tables[0].Rows.Count -1)
           {
               
               TxtDisplayQuestion.Text = dataset.Tables[0].Rows[ RecordCounter]["Emp_Title"].ToString();
 RecordCounter++;

           }