Web Forms :: When The Page Loads The Gridview Gets Populated With The Data And All Work Well?
Aug 5, 2010
My page includes a button and a GridView bound to a LINQ data object which is bound to a table. when the page loads the gridview gets populated with the data and all work well. The button has an empty method, when I click the button I get en error message "Intenet explorer cannot display the web page" I put a break point at the begining of the method listed below but I get the error message before it gets there. If I remove the gridview than the button works well.
[Code]....
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May 7, 2015
URL...but I noticed that if move the bind from page load directly to button the code doesnt works?
<%@ Page Language="vb" AutoEventWireup="true" CodeBehind="WebForm1.aspx.vb" Inherits="_100yWeb.WebForm1" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<script src="Script/jquery-1.4.1.min.js" type="text/javascript"></script>
[code]...
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Nov 8, 2010
We do have a search page for customers which returns a list of data from a table.
Once we select on an item it should redirect to another page with customerId as a querystring parameter..
Now the problem is we have to save all the customerIds and need to send them to display page..and need to select next one once they done with previous one without going to the search page again..
Example:
if they got 10 customers in the search page then we need to send all 10 ids to display page by starting display of firstone and once they select next button on display page they have to move on to the next cutomer from that list..if they reached the end of list they have to start again from the first...we need to avoid the user going to the search page for each customer every time...
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Jan 16, 2011
I have two grids "grid1" and "grid2" and two updatePanels "up1" and "up2". Both the panels have UpdateMode = "Conditional" grid1 is nested in up1 and grid2 is nested in up2 [Code]....
In Code behind : [Code]....
I am using UpdatePanels, but still data will be fetched whenever page loads. How can I handle so the dat will be fetched on ony for the grid which is being updated
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Oct 14, 2010
I do long and slow query to get data to my GridView and I got lot of data, but when I'm changing page it loads as slow as at the start, it loads full data again and again, how to load data once and use paging without data loading?
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Apr 4, 2011
The gridview is not displaying when the page load even though I have bind the gridview with the datasource.... below is the code..
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DSF_View_ChangeRequest.aspx.cs" Inherits="DSF_View_ChangeRequest" %>
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[code]...
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Jun 29, 2010
I have a dynamic dropdown that is populated from sql. The user is supposed to select an option from the dropdown, then click a search button on the form to return some results based on that selection. It works fine if the dropdown gets populated with more than one record. However, if only one record is returned, that one record can't be selected. Whether you select it or just leave it alone since it's the only one, when you click the form button (search button), no results are returned b/c the dropdown selection must not be actually selected.
I've included the relevant code below. First the DDL, then the datasource, and finally the C# code in the if (!Page.IsPostBack)
[Code]....
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Nov 3, 2010
I've got a dropdownlist and a Gridview Based on the choice from the dropdownlist (which has a '--Select--' as the first item), the gridview is populated. If nothing is in the database when queried, I have a message for the emptydatatext property of the gridview. However, it comes up when the page first loads, since it's based on the ddl. How can I make it so that, when the page loads for the first time, the emptydatatext property is ignored?
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Apr 13, 2010
I am trying to set a focus on a dropdown within GridView(gridViewDropDown class) when page loads:
if ($('select.gridViewDropDown').length)
{
alert("Found my dropdown");
//$('select.gridViewDropDown:first').focus();
setTimeout(function() { $('select.gridViewDropDown').focus(); }, 10);
}
I can see the alert which means that dropdown is found but it never gets a focus. What do I need to change here? I am using IE 6/7.
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Mar 11, 2010
I am having some difficulty enabling sorting on a gridview that has data in it that has come from an objectdatasource.
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Feb 7, 2011
In a webpage in my project there is one textbox and a gridview.
Gridview is being populated by some parameters coming through Request.QueryString from previous.
When gridview is populated a very huge data appears.
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SR status
1425688 pending
2678549 closed
5342875 transferred
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Sep 29, 2010
I have a business class "Repositorio" with methods to create, update and delete objects.
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i used like this:
[Code]....
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Apr 18, 2010
How to populate a DropDownList (using C#) inside a DataList while page loads.....yes we can do it by using DatasourceID propeerty in aspx page itself(as I've done here..), but how do I do using C# in code behind only?
<FooterTemplate>
<table>
<tr> [code]...
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Aug 23, 2010
I have the following code:
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using Oracle.DataAccess.Client; // ODP.NET Oracle managed provider
using Oracle.DataAccess.Types;
namespace MyTestApp {
public partial class _Default : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
OracleConnection conn = new OracleConnection("User Id=UID; Password=PWD; Data Source=XE; Pooling=false"); try { conn.Open(); } catch ( OracleException oe ){
Console.WriteLine("ERROR : " + oe.Message); }
if ( !Page.IsPostBack ) {
if (conn.State == ConnectionState.Open) {
// get data GetMoleculesToShow(conn); } }
// clean up connection conn.Dispose(); }
static void GetMoleculesToShow( OracleConnection conn ){
String division; String rxotc; String molecule_name;
String prodnum; String proddesc; String molecule_class; String nonactive;
// create command object and set attributes
OracleCommand cmd = new OracleCommand("schema.package.procedure", conn);
cmd.CommandType = CommandType.StoredProcedure;
//Bind values
cmd.Parameters.Add("mol_to_show_cur", OracleDbType.RefCursor);
cmd.Parameters[0].Direction = ParameterDirection.Output; try {
// Execute command, have parameters populated cmd.ExecuteNonQuery();
// Create OracleDataAdapter, data provider object to populate dataset
OracleDataAdapter da = new OracleDataAdapter(cmd);
//Populate dataset with "molrefcur"
DataSet ds = new DataSet();
da.Fill(ds, "mol_to_show_cur", (OracleRefCursor)(cmd.Parameters["mol_to_show_cur"].Value));
//Verify dataset is begin populated //DataTable dt = ds.Tables[0];
//foreach ( DataRow dr in ds.Tables[0].Rows ) //{
// division = dr["division"].ToString();
// rxotc = dr["rxotc"].ToString();
// molecule_name = dr["molecule_name"].ToString();
// prodnum = dr["prodnum"].ToString();
// proddesc = dr["proddesc"].ToString();
// molecule_class = dr["molecule_class"].ToString();
// nonactive = dr["nonactive"].ToString(); //}
if (ds.Tables[0].Rows.Count != 0) {
// display dataset values GridView gvMolecules = new GridView();
gvMolecules.DataSource = ds.Tables["mol_to_show_cur"].Rows;
gvMolecules.DataBind(); } }
catch (OracleException oe) {
Console.WriteLine("ERROR : " + oe.Message); }
finally { cmd.Dispose(); } } } }
The dataset is being populated, however when the page renders, the data nor the gridview are visible. I have tried using both IE and Firefox, binding / not binding the columns, AutoGenerateColumns Y / N with no success. As I am new to all of this ( VS2008, ASP.NET, C# ) I can't help but to think I am overlooking something basic.
I am using the following :
- VS 2008
- MS Vista SP2
- Oracle XE ( local )
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Mar 28, 2011
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Feb 14, 2011
I have a gridview thats being populated from an excel file that is loaded through a fileupload control. I want to save the contents of that gridview to a table in my SQL database. I've searched the web and tried to loop through the gridview, but failed at it.
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Asp.net gridview dynamic change pagesize not work on the last page.
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Changing pagesize is working except the last page
We can have a look at this link:
http://marss.co.ua/DropDownListInPager.aspx
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Feb 26, 2010
I'm trying to set paging on my gridview but when i click on a page it doesn't work. It return a blank page. Here's my code:
[Code]....
Behind code:
[Code]....
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May 13, 2010
I'm a little new in ASP.NET, so i don't know how the .NET machine fully works..I'm using two strategies to solve my problem, both invoked by a Button.Click event, but i don't know which one is better..My worries are about the server overload and page load time.This is the regular approuch i've used..
[Code]....
The second one is by using a funtion (named checkIfNumberExistsInDataTable) that does a binary search in a datatable to find a number
conn.Open()
Dim dr As SqlDataReader = cmd.ExecuteReader
Dim da As New DataTable()
[code]...
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Feb 20, 2010
On my web form, I have a RadioButtonList as follows:
Select a radio button when page loads based on RadioButtonList's DataSource
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Jan 7, 2010
I have a GridView in an update panel that is bound (in code-behind) to a business layer object. The first time this page is accessed, Editing, Deleting, Updating, etc. work fine. However, if I click my browser's refresh button, the functionality of the edit, delete, etc link buttons is gone. They do nothing.
here's my code:
[Code]....
Here's the code-behind:
[Code]....
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Jun 21, 2010
not quite sure where I'm going wrong here. I'm trying to manually handle sorting in a Gridview that is populated with the following data source:
[Code]....
[Code]....
[Code]....
At the moment, nothing is happening when I click on the column headings. I ran it in debugging mode in Visual Studio and put a breakpoint on the Sorting event handler. I noticed that the variable dtSortTable is empty even after the TryCast(VacanciesGV.DataSource, DataTable). If I hover over this statement in debugging, it shows the data from the file system, so it does appear to be reading it.
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Mar 10, 2010
The problem with my web application is when ever i load the home page - The master page as well as content page loads ---This seems fine but when i navigate thorugh the website which have the same Master page but diffrent content page .... the master page loads again. What i want to do is ..I want to keep the master page intact and only the content page loads. How can I accomplish it..
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Mar 10, 2013
How to generate Radio button list based on data fetched from server in front of gridview,i am facing problem in generating a particular no. of Radio Buttion list as per the data fetched.
Suppose if i fethed 20 records then 20 radio button lists should be generated.
and the values like a or b or c should be submitted in the tables.
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Mar 21, 2011
I have a web page with a GridView and a table outside the gridview to display more information of the record when it is selected (like record details). I'm using data of five tables for this particularly window. I use one table of the five to bind the gridview the other tables are for the details, but I use like 1 or 2 fields of those tables. I'm binding the page with web services. I need some advice on which is the better way for doing this to make a faster web page.
In sql server I made a view with the five tables (all the tables relations are working perfectly). In the web service I call the view; and in the web page I call the web service to bind the page. Everything is working. All I want to do is retrieve from the server all the necessary data only once when the page loads and bind the five tables data (like 18 fields total) in the gridview which I only show 12 fields the other 6 fields are hidden, those 6 are for the details which I get with jQuery (that's another topic). Bind everything only once and manage the data on client side. Everything is working perfectly. Here is my doubt.
How are the maximum table joins I can make? To retrieve the data via web and not get a server time out error. Which is a better way to make a faster page? Make 2 views one for the gridview and one for the details and put each view in a web service; or make one view with all the table joins and one web service. Right now all is working but I have to make other pages that use different tables and joins and I don't know if the server gets me the time out error when the page is fully working.
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