How To Populate Google Charts Using Dataset / Datatable
Feb 24, 2011How to populate google charts using ASP.NET Dataset/Datatable
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Nov 21, 2013I am trying to implement google charts using sql database. I can not get the code to display charts on the client-side, as its currently blank page. I tried changing the str.append string but I still can not get the data to display on the client-side.
<%@ Page Title="" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="Charts_07.aspx.cs" Inherits="Charts_07" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" Runat="Server">
[Code] ....
database schema, I am using for this task.:
there are null cells in column cover and talks. -- could this be the reason why the chart rendering is falling?
INSERT INTO [dbo].[data]
([Id]
,[name]
,[data]
,[cover]
,[talk]
[Code] ....
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Configuration :: Populate Charts - Object Reference Not Set To An Instance Of An Object
Dec 20, 2010I've got a web application I've built that makes various database calls to render some charts and datagrids for MI reporting purposes. I've got my database calls initiating on Page_Load within the .vb for each page. The site impersonates identity for database access. Page_Load returns a datatable and populates an HTML table inside an ASP:Repeater. Still with me? Well, everything works fine here. My problem is within the Default.aspx.vb Page_Load sub.
The Page_Load sub (in Default.aspx.vb) returns a datatable the same way as the others but instead of rendering the results to a repeater, the datatable is saved as Session("dt"). The saved session "dt" is then used to populate a couple of charts I've got on the home page(default.aspx):
<script
runat="server">
Public
Function buildXML(ByVal Product
As
String,
ByVal reportNameStr
As
String)
As
String
Dim clDB
As
New clDB
Dim clSB...........................
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Dec 7, 2010I've got a SqlConnection with a sqlquery that may not bring any results. On the rare occasion this happens, I have another sqlquery and another connection to the database. There has to be a better way to do this, no?
On a side note, is this best to close the connection after .Fill? I assume so, but haven't seen it used anywhere.
SqlConnection dbSqlConnection = new SqlConnection(--);
SqlDataAdapter dbSqlDataAdapter = new SqlDataAdapter(sqlquery, dbSqlConnection);
DataSet dbDataSet = new DataSet();
dbSqlDataAdapter.Fill(dbDataSet, "popGrid");
dbSqlConnection.Close();
if (dbDataSet.Tables["popGrid"].Rows.Count == 0)
{
SqlDataAdapter newSqlDataAdapter = new SqlDataAdapter(sqlquery2, dbSqlConnection);
newSqlDataAdapter.Fill(dbDataSet, "popGrid");
dbSqlConnection.Close();
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Public Function getMessages() As DataSet
Dim dSet As DataSet = New DataSet
Dim da As SqlDataAdapter
[code]...
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Dataset Vs. Returning A Datatable
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View 2 RepliesMVC :: How To Populate A Drop Down List From A Datatable
Mar 4, 2010I'm trying to populate a drop down list from a datatable. Is this correct way of doing it?
public ViewResult Index()
{
ViewData["CampaignList"] = List;
return View();
}
public IEnumerable<SelectListItem> List
{
get
{
DataTable dt = CampaignRow.GetList(DB, 100, true);
List<SelectListItem> list = new List<SelectListItem>();
foreach (DataRow row in dt.Rows)
{
list.Add(new SelectListItem
{
Text = Convert.ToString(row["CampaignName"]),
Value = Convert.ToString(row["CampaignId"]),
});
}
return list;
}
}
how can i stylize drop down list? how can i add an empty first value ie "select campaign"
C# - Populate DataTable With Records From Database?
Oct 8, 2010This is my GET Method to get my data from my DataTable
Private Function GetData() As PagedDataSource
' Declarations
Dim dt As New DataTable
Dim dr As DataRow
Dim pg As New PagedDataSource
' Add some columns
dt.Columns.Add("Column1")
dt.Columns.Add("Column2")
' Add some test data
For i As Integer = 0 To 10
dr = dt.NewRow
dr("Column1") = i
dr("Column2") = "Some Text " & (i * 5)
dt.Rows.Add(dr)
Next
' Add a DataView from the DataTable to the PagedDataSource
pg.DataSource = dt.DefaultView
' Return the DataTable
Return pg
End Function
It returns the DataTable as "pg"
What changes must I make to this GET method to get the records from a table in my database?
C# examples will also do but would be great to see a reply with my code and then the changes....
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I need take all Data from Context and populate my DataSet. My final goal is to populate a TreeView Control with DataSet object.
[code].....
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The reason is I have an Objectdatasource on a page which is populating a GridView ok.
I want to use a Dataset to control the DayRender of a Calendar Control and don't want to query the database again as the right date info is already in the Objectdatasource.
So can i populate a dataset with the objectdatasource ??
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<meta charset="UTF-8" />
<title>Google Maps</title>
<style type="text/css">
#map-canvas {
[CODE]...
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Sort The Datatable After Binding The Dataset?
Apr 16, 2010How to Sort The datatable in asp.net. after binding the dataset values i have stored into one table how can i sort the values of the dataset in asp.net with C#
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