Count Number Of Returned Results And Print To Literal?
Apr 9, 2010I want to count the number of results results returned by my query and print the number to a literal on the page.How would I do that?
View 2 RepliesI want to count the number of results results returned by my query and print the number to a literal on the page.How would I do that?
View 2 RepliesWhen a user submits the query to SQL when clicking a button I need to get a count of the number of rows that are returned. Which event does the gridview.count code need to be place in?
Right now I have it in the btn_click event, but in order to get it to count the rows you have to hit the button twice since the query is not returned yet. Here is my code.
[Code]....
I have executed my query in VB with:
[Code]....
I now want to count the number of returned rows so that I can say:IF rows_returned = 1 then login else deny
I think you get the idea.P.S. I know this is not the most secure method of login but I do not want to use the ASP.NET configuration manager as I like to understand what is happening. I am starting off very simple and I shall work up from there.
Note: You may not need to read the whole thing to know what's wrong... skip down to the part about the 3 scenarios if you'd like. Only read the begin if you'd like some background info on how I've tried implementing this and where the errors occurred.To begin with, I'm trying to retrieve a list of Clients stored in the CRM_Clients table for a given callerId.I retrieve the clients from my Controller with the SelectLiveClientsForCaller method. The message is then passed on to the DAL through the static Instance method in the DataProvider class:
public List<Client> SelectLiveClientsForCaller(int callerID)
{
List<Client> results = new List<Client>();
[code]...
Trying to output the PageName in a masterpage.
Masterpage has a Literal in which I am setting by accessing a property on the MasterPage "PageTitle".
<head runat="server">
<title><asp:Literal ID="litTitle" runat="server"/></title>
<asp:ContentPlaceHolder ID="head" runat="server" />
</head>
The child page is like this:
<asp:Content runat="server" ContentPlaceHolderID="content">
<%
MasterPage master = Master as MasterPage;
master.PageName = "Log in";
%>
</asp:Content>
And the property PageName is coded thusly:
private string _pageName;
public string PageName
{
get
{
return _pageName;
}
set
{
_pageName = value;
litTitle.Text = _pageName;
}
}
I'm guessing this is because the page output has already been rendered, but as I say I don't know enough about ASP.NET. I guess I'm after something similar to PHPs ob_start().
I am viewing items returned from a dataset in an Infragistics chart control. My problem is that due to a weak point in the control, I am left looking for a way to manipulate the height of the chart based on the count/number of items returned by the ObjectDataSource(DataSet).
Does anyone one have an existing C# sample they could let me view of accessing the count of records returned within the code-behind of a page that I could then use within a case statement to set the hight of the control?
I have this code:
Dim Result As New DataTable
DataAdapter.Fill(Result)
'bind data to visible surname/name grid
If Result.Rows.Count = 0 Then
NoInputBottom.Text = "No Results. Please widen your search criteria and try again"
NoInputTop.Text = "No Results. Please widen your search criteria and try again"
Else
GV.DataSource = Result
GV.DataBind()
End If
I have also tried moving the check to the gridview like so:
If GV.Columns.Count = 0 Then
NoInputBottom.Text = "No Options Selected: Please select your search criteria and try again" NoInputTop.Text = "No Options Selected: Please select your search criteria and try again" End If
When I run the code. the noinput labels do not have value, the null check seems to be failing? how to display a message if the search returned no reults.
I am having problems with the following. On debugging I find that when strKeywords = '', reader = "System.Data.SqlClient.SqlDataReader". However, as soon as strKeywords takes the value of anything else, reader = nothing. But the stored procedure handles the arguments fine, so I am very confused!
[Code]....
i m using three web services in my project ... while Webservice1 returns data in a set of 50 records at a time .. the other 2 webservices return the entire resultset .. the consolidated results(20 per page) are to be displayed in sorted fashion...now the query is to find the best way to retrieve the data from the 3 sources while applying the sorting across the consolidated results. I have developed some code for this but am looking for something better ..
View 5 RepliesI have a validation method,
public string ValidateField() {
string strtemp = "";
strtemp += ValidateField("Visitor_Name", visitor_name.Text, 10, 50, "string", true);
strtemp += ValidateField("Phone_Number", phone_number.Text, 5, 20, "string", true);
strtemp += ValidateField("Contact_Number", contact_number.Text, 4, 25, "string", true);
strtemp += ValidateField("Visited_Date", DropDownList1.SelectedValue, 1, 30, "int", true);
//strtemp += ValidateField("V_Id", v_id.SelectedValue, 2, 35, "int", false);
[Code] ....
And inside the button click event the validation working like
if (ValidateField() == "") {
output = usbll.insertBAL(userval);
Response.Write("Record inserted successfully");
}
It is working correctly...But It is not showing error message.So how to show the error message that is returned from the above condition ValidateField()...If the condition not satisfied i want to show a error message like length should be greater than or equal to minimum length and so on ..
I have a model called 'BusinessPage' which can be associated with 1 or more 'BusinessPageCategories'. So I've got a 3rd table called 'BusinessPagesInCategories' that links these two.I am trying to get a paged recordset of BusinessPages, along with the total number of records (I may have 100 rows in total but only return 20 at a time, but I pass back an int containing that total number in addition to the 20 rows).The problem I have is that, since I implemented the Many-To-Many relationship, it was bringing back the same BusinessPage row x times (where x is the number of categories that BusinessPage is associated with). I only want a single instance of each business page to be returned. So I added the following to my NHibernate Criteria to give Distinct BusinessPage results..SetResultTransformer(CriteriaSpecification.DistinctRootEntity);
Whilst this works for me, in that I'm now correctly getting a single row per BusinessPage (and my Categories property within each BusinessPage contains the correct x categories that it's assigned to), my row count is not reflecting that 'distinct' count - instead, if I have just 1 BusinessPage record which is associated with 3 categories, the row count is 3!?!
public virtual int BusinessPageId { get; private set; }
public virtual IList<BusinessPageCategory> Categories { get; set; }
public virtual string BusinessName { get; set; }
[code]...
I have the following sql command:
SqlCommand cmd = new SqlCommand("SELECT * FROM tbl WHERE ID = 'john' ", con);
How can i output the results of the following command in C# to my webpage?
I have a page that will display up to 4 videos at a time.. BUT i would like to see if there is any way to calculate and set the width and height according to the number of videos im presenting..
If only one video, i want it to take up the entire width and height of the space i have allocated.. ( say thats 1000w x 800h )
If im displaying 2 videos, then split that space up between the 2 and so on.. keeping the aspec ratio so not to distort the video window..
Right now im hard coding each one 400x300 which looks good when there are 4 laid out on the page.. just want to see how doable is this to accomplish..
i need to create a fully funnctional gridview with the results returned from a script serice ( AJAX enabled WCF Service ).
The grid should allow user to sort and page the data.
could any body drive me to the proper technology or a useful link.
After connecting to a database using DataReader, how can I count the number of rows ?
View 2 RepliesI have code that's working beautifully on my development machine,but when deployed to the server is throwing null reference exception.So,I can't step through the code,but I've pinned down the culprit.But now I am puzzled.Here's the code.The question is below.
Dim certs = From p In persons _
Select New Certificate( _
p.Value, _
New CertificateData.Seminar(thisEvent.Seminar.Name, _
[code]...
In the code above persons is a dictionary of custom class,and certs is of IEnumerable type.Now here's the quandary.The first line that sets the label returns False,so certs is not null.But the second line throws an null reference exception.
I have an SP that simply performs a COUNT(*) from a table. I'm am trying to print that number in an ASP Label. It works in Query analyzer but I cant wrap my head around how to display it in a label.
View 5 RepliesI have a web page where I want to return number of returned rows by datareader as I need to get Count of rows. My code is as follow :
SqlCommand cm = new SqlCommand(); SqlDataReader dr;sqlconnection cn; public int Returndatareader( int x)
{
int s;
string sqlstr = "SELECT COUNT(*) FROM P_Events as Counter";
cm.CommandText = sqlstr;
cm.Connection = cn;
cn.Open();
dr = cm.ExecuteReader();
if (dr.Read())
{
int y = dr.RecordsAffected;
s = y;
//return y;
}
cn.Close();
return x;
}
but the rows affected count is -1 everytime i run my code.
Can i customize gridview to show Reuslt summary in the footer or pager like
[Results: 1- 10 of 2000]
The query I used here is
SELECT top '"+lblCount.text+"' Company_Id, CompanyName, All_Countries,All_Industries,Employees,Revenue, Status FROM SN001CompanyTable where Client_Id=100 ORDER BY [Company_Id] DESC
but its not showing proper results..
In this lblCount contains the no of row to be displayed..
Trying to get the number of rows returned in a query in Visual Basic.The query returns 3 rows.Dim td As Integer = dataset1.Tables(0).Rows(0).ItemArray(0) has a value of 1.Dim tg As Integer = GridView1.DataSource.tables(0).rows.count has a value of 3.1. Why do aren't they both 3 ?2. Is there a best way of getting the number of rows ?3. Where can I find a tutorial or book that explains the notation above ?
View 3 Repliesusing sql server 2005.
i need to query a table which normally will return multiple records for the id and I need to loop through probably using a cursor and pull values out from each record to make a string.
what is the syntax for this? i've seen cursors using a set number (EX: loop through 5 times) but I need to create a query so that I can loop through once for each row returned from my query.
I have stored resumes in my database and i have retrive it from asp.net web page by creating linkbutton...i can view ,download the resumes which i stored in my database.My issuse is when i view one resume example (domnic resume)then no of visitor for domnic resume should be count .if again i view that resume no of visitor should be 2...how can i do that in asp.net?
View 3 RepliesSQL Select Union and total number of returned rows?
View 3 RepliesCurrently I have
dlRSS.DataSource = GetRSSFeed("http://www.foodsafetynews.com/headlines.xml")
dlRSS.DataBind()
Function GetRSSFeed(ByVal strURL As String) As DataTable
'Get the XML data
Dim reader As XmlTextReader = New XmlTextReader(strURL)
'return a new DataSet
Dim ds As DataSet = New DataSet()
ds.ReadXml(reader)
Return ds.Tables(2)
End Function
<asp:DataList ID="dlRSS" runat="server" Width="100%" >
<ItemTemplate>
<strong><p><div><asp:HyperLink ID="TitleLink" runat="server" Text='<%# Eval("title") %>' Target="_blank" NavigateUrl='<%# Eval("link") %>'/></div></p></strong>
<strong><p> <div><asp:Label ID="SubtitleLabel" runat="server" Text='<%# Eval("description") %>' /></div></p></strong>
</ItemTemplate>
</asp:DataList>
But is returning all rows in RSS Feed I would only like top 5 or so