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hi i have problem on getting next,previous records in C#.net windows application

descreption:

i have binded data to datagridview and when i click datagridview middle cell the perticular
row data goes to next form as details .i want navigate data from that middle row data
by counting for next button and decrement for previous button but im getting from begining.so please send solution to my emailid [email removed]
Posted
Updated 3-Apr-12 5:31am
v2

1 solution

Hello

Suppose, there is a List of MyObject, and you've bound MyObjectCollection to the DataGrid
C#
List<mytype> MyObjectCollection


When you select a object then you want the Next and the Previous:

C#
public MyType GetNextItem(object selectedObject, List<MyType> myObjectCollection)
{
    int c = myObjectCollection.TakeWhile(o => o == selectedObject).Count() - 1;

    int p = c - 1;
    int n = c + 1;

    return (myObjectCollection.Count() >= n + 1) ? myObjectCollection[n] : null;
}

public MyType GetPreviousItem(object selectedObject, List<MyType> myObjectCollection)
{
    int c = myObjectCollection.TakeWhile(o => o == selectedObject).Count() - 1;

    int p = c - 1;
    int n = c + 1;

    return (p >= 0) ? myObjectCollection[p] : null;
}
 
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v3
Comments
panduRajju 4-Apr-12 1:15am    
thanq u for your response but its not working
my requirement is i have data in datagridview when i click by celldoubleck event
the perticular row data goes to another form.from that form when i click next or previous button it navigating from begining record onwards.but i want to navigate from selected record onwards.
Shahin Khorshidnia 4-Apr-12 5:23am    
What's the navigating control in the other form? Does it have a SelectedItem or a SelectedIndex property?
panduRajju 4-Apr-12 9:01am    
in another form the data in binding to textboxes. if i click next button i want
display details of next record and previous button for previous record
panduRajju 4-Apr-12 9:37am    
no selecteditem and selectedindex
panduRajju 4-Apr-12 9:41am    
my code in another form is

private void btnNext_Click(object sender, EventArgs e)
{

objCourtDetails.Action = "select";
ds = objCourtDetails.CourtDetailsSelect_Bal(objCourtDetails);
//nt i = Convert.ToInt32(txtCourtID.Text);
////dgvCourtView.DataSource = ds.Tables[0];

//if( i >-1 )
if (i < ds.Tables[0].Rows.Count - 1)
{
//nt j = i + 1;
i++;
txtCourtID.Text = ds.Tables[0].Rows[i]["ID"].ToString();
txtcomboCourtType.Text = ds.Tables[0].Rows[i]["CourtType"].ToString();
txtCourtCode.Text = ds.Tables[0].Rows[i]["CourtCode"].ToString();
txtCourtName.Text = ds.Tables[0].Rows[i]["CourtName"].ToString();
txtCourtLocation.Text = ds.Tables[0].Rows[i]["CourtLocation"].ToString();
txtCity.Text = ds.Tables[0].Rows[i]["City"].ToString();
txtState.Text = ds.Tables[0].Rows[i]["State"].ToString();
txtCountry.Text = ds.Tables[0].Rows[i]["Country"].ToString();
txtZipCode.Text = ds.Tables[0].Rows[i]["ZipCode"].ToString();
txtURL.Text = ds.Tables[0].Rows[i]["URL"].ToString();
txtWorkPhone.Text = ds.Tables[0].Rows[i]["WorkPhone"].ToString();
txtEmailAddress.Text = ds.Tables[0].Rows[i]["EmailAddress"].ToString();
txtFAX.Text = ds.Tables[0].Rows[i]["FAX"].ToString();
txtOther.Text = ds.Tables[0].Rows[i]["Other"].ToString();
txtNote.Text = ds.Tables[0].Rows[i]["Note"].ToString();
txtComments.Text = ds.Tables[0].Rows[i]["Comments"].ToString();
//txtComments.Text = ds.Tables[0].Rows[i]["DateofEntered"].ToString();
//txtComments.Text = ds.Tables[0].Rows[i]["Comments"].ToString();

}
else
{
//no records to see more.
MessageBox.Show("No Records Found");
}

}

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