c# - 当一行的删除按钮被点击时整个gridview变得不可见

Question

当我点击删除按钮时，相应的行被删除。但是 gridview 中的其余行变得不可见。但是当我再次单击那些链接按钮时它显示正确 .请帮我。代码在这里:

protected void LinkButton2_Click(object sender, EventArgs e)
{

try
   {    SqlConnection con = obj.getcon();
        con.Open();


        GridView1.Visible = true;
        SqlDataAdapter adapter = new SqlDataAdapter("select e.student_id,e.student_name,e.student_nric from student_details e join student_vs_testsession_details f on e.student_id=f.student_id where f.testsession_id='" + lb_testid.Text + "' ", con);
        adapter.Fill(ds);
        GridView1.DataSource = ds;
        GridView1.DataBind(); 


        }

    catch (Exception ex)
    {
        Response.Write(ex);
    }
}
 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
 {


    string id =Convert.ToString (GridView1.DataKeys[e.RowIndex].Value);


    SqlConnection con = obj.getcon();
    con.Open();

    SqlCommand cmd = new SqlCommand("DELETE FROM student_vs_testsession_details WHERE student_id='" + id + "'", con);
   // con1.Open();
    int temp = cmd.ExecuteNonQuery();
    if (temp != 0)
  {

      ScriptManager.RegisterStartupScript(this, this.GetType(), "alertmessage", "javascript:alert(' record deleted succesfully')", true);
  }
       con.Close();

       GridView1.Visible = true;

       GridView1.DataBind(); 

}

Answer 1

你在这里做的是从数据库中删除它而不是从表中删除它。(这是分配给你的网格的表)

所以在这种情况下，您需要在删除行后重新填充数据表，或者手动从绑定(bind)到 gridview 的数据表中删除行

你可以做的就是添加

LinkBut​​ton2_Click(null,null) GridView1.Visible = true; 删除函数

或重写数据集函数。

但不要忘记，每次您需要将表格分配给 gridview

希望对你有帮助