I get error in row updateing in this code data cannot be update its show only old data in gridview.

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C#

protected void GridView2_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    GridViewRow row = (GridViewRow)GridView2.Rows[e.RowIndex];
    int BookingRefNo = int.Parse(GridView2.DataKeys[e.RowIndex].Value.ToString());
    string AssignedPriority = ((TextBox)row.Cells[11].Controls[0]).Text;
    string Status = ((TextBox)row.Cells[12].Controls[0]).Text;
    SqlConnection con1 = new SqlConnection(constr);
    SqlCommand cmd = new SqlCommand("Update TSafetyMaster set AssignedPriority=@AssignedPriority,Status=@Status where BookingRefNo=@BookingRefNo", con1);
    cmd.Parameters.Add("@BookingRefNo", SqlDbType.Int).Value = BookingRefNo;
    cmd.Parameters.Add("@AssignedPriority", SqlDbType.VarChar).Value = AssignedPriority;
    cmd.Parameters.Add("@Status", SqlDbType.NVarChar).Value = Status;
    con1.Open();
    cmd.ExecuteNonQuery();
    GridView2.EditIndex = -1;
    GridView2.DataBind();
}

Posted 16-May-14 20:14pm

safihur Rahuman

Updated 16-May-14 20:39pm

DamithSL

v2

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DamithSL 17-May-14 2:34am

how you load the load data first time?

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DamithSL · Answer 1 · 2014-05-16T20:35:00

you need to get the data from database and bind the GridView2 again after update.
for example, in your page load you may have gridview binding code something like below

C#

if(!IsPagePostBack)
{
    BindGridview(); // get data from database and call GridView2.DataBind();
}

call the same after insert

C#

protected void GridView2_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
  // your current code goes here ...
  // after cmd.ExecuteNonQuery();
   BindGridview();
}

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 2 · 2014-05-16T20:42:00

The problem is with the way you are binding the Grid. You must check for IsPostBack in Page Load and bind the data.
Otherwise, for RowUpdating, it would go inside the Page Load first and bind the Grid again. Do, you will get the old values instead of new values.

So, do like below...

C#

private void Page_Load()
{
    if (!IsPostBack)
    {
        // Call your Bind method here.
        BindYourGrid();
    }
}

I get error in row updateing in this code data cannot be update its show only old data in gridview.

2 solutions

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