binding list in the gridview

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I have a list

List<classname> persons=new List<classname>();

in this list I have records for two persons. If I add a new record in that list it shows only the new record, not the existing records.

but in the (!postback) section when I bind the list to the gridview it shows that two existing records, but after adding the new records it shows only the new.

can anyone find where am committing the mistake.

Posted 13-Mar-12 19:12pm

abdul samathu

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Tanveer A · Answer 1 · 2012-03-13T19:22:00

Solution 1

dear again bind list with grid view

Posted 13-Mar-12 19:22pm

Tanveer A

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abdul samathu 14-Mar-12 1:34am

i did Mr.Tanveer

my code is

am storing the recods in session like

Session["Qualifications"]=persons=person.Qualification;

gridPreviousQualifications.DataSource = persons;
gridPreviousQualifications.DataBind();

and in the add click event,

protected void btnAdd_Click(object sender, EventArgs e)

{

DataAccess.Entities ceEntities=new DataAccess.Entities();
BO.Peroson.Qualification qualification = new BO.Person.Qualification(0
, txtPreQualification.Text
, txtPreInstitution.Text
, txtPreBoard.Text
, txtPreYear.Text);
persons.Add(qualification);

Session["Qualifications"] = persons;

gridPreviousQualifications.DataSource = persons;
gridPreviousQualifications.DataBind();

}

Sarvesh Kumar Gupta · Answer 2 · 2012-03-13T19:38:00

Solution 2

Hi,

when you are adding new record to list then check that list has 2 old records. you can save list in view state and fetch list from viewstate and add new record to that and again save in viewstate. after adding check list has 3 records after checking bind this list to grid view. it will show 3 records now. follow this process, you will found your solution. :-)

Posted 13-Mar-12 19:38pm

Sarvesh Kumar Gupta

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abdul samathu 14-Mar-12 1:43am

Mr.sarvesh, the problem is while adding a new record, when the control comes to the persons.add(qualification), it shows that the count in the list is 0, but there are two records already in that list