Syntax For Retrieving A Value From A SqlDataSource?
Dec 28, 2010the syntax for retrieving a value from a SqlDataSource? I've managed to get it working using numbers to represent the column, but I'd much rather use it's DB name?
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the syntax for retrieving a value from a SqlDataSource? I've managed to get it working using numbers to represent the column, but I'd much rather use it's DB name?
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I am trying to retrieve the contents for one cell from my database table from codebehind, but It keeps returning NULL with this error
System.NullReferenceException: Object reference not set to an instance of an object.
It errors out at this line: dt = dv.ToTable();
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Is there anything special you have to do to retrieve Filestream data using a SqlDataSource? I'm using VB and have this as my sqldatasource:
<asp:SqlDataSource ID="SqlDataSourceReadPD" runat="server" etc...
SelectCommand="SELECT [PDIPAttachment] FROM [PositionDescriptions] WHERE ([CP_IDString] = @CP_IDString)">
<SelectParameters>
<asp:Parameter Name="CP_IDString" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
PDIPAttachment is a FILESTREAM column in my table called PositionDescriptions
and this is some of my VB cod:
Dim dv As DataView = DirectCast(SqlDataSourceReadPD.Select(DataSourceSelectArguments.Empty), DataView)
Dim dr As DataRowView
For Each dr In dv
Dim data as Byte() = System.Text.Encoding.ASCII.GetBytes(dr("PDIPAttachment").ToString())
Next
The Filestream data has a PDF file in it, but what I"m getting back in "data" are 13 bytes consisting of: "System.Byte[]".
I have created a asp.net webpage for viewing daily downloaded newspaper, saved as a pdf file in a selected folder (~/NEWS/{0}) within the web root directory. Also i have a SQL datasource linked, where the news table has two columns viz: date and filename.
I want to create a tiled listview where the date text is visible on the hyperlink. on clicking the hyperlink, the file name is retreived for the corresponding date and the pdf file opens in a fresh page.
I have tried going to the item template in listview and replacing the label control with a hyperlink control, but then not able to successfully proceed ahead.
I'm having problem in inserting text from a textbox in which user write or copy some text which may contain special characters ( " , . ) etc. If there is any special character it get conflict with CommandText Syntax and generates error in inserting. I want to insert all these characters. How could i do it?
Code:
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The following CLR syntax works fine in my aspx page:
<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="Website.MyBasePage`1[HomePageViewModel]" %>
But this C# syntax does not:
<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="Website.MyBasePage<HomePageViewModel>" %>
Note, I am not using ASP.NET MVC, but this works fine if using System.Web.Mvc.ViewPage<> from ASP.NET MVC.
My MyBasePage looks like this:
public class MyBasePage<TModel> : Page where TModel : class {
public TModel Model
{
get { return (TModel)HttpContext.Current.Items["model"]; }
}
}
For reporting we used report RDLCs and displayed using an ASPX form. We implemented using the route as shown below. This resulted in forcing us to use the page route below and also to use the hyperlink instead of the normal Action Link. The question is how do we convert the asp:hyperlink ASPX syntax to Razor syntax.
//Custom route for reports routes.MapPageRoute( "ReportRoute", // Route name "Reports/{reportname}", // URL "~/Reports/{reportname}.aspx" // File );
<li><asp:HyperLink ID="hypReport" runat="server" NavigateUrl="<%$RouteUrl:routename=ReportRoute,reportname=StaffRpt%>">Staff Report</asp:HyperLink></li>
I am trying to tie a sqlDatasource to a Stored Procedure. The stored procedure looks like...
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I am working with a sql server database with about 50 stored procedures. The database and stored procedureswere not created by me. The stored procedures all begin with a number in their name.
Example: 17P_Comsetter
The problem I am having is that if I try and execute the stored procedure at the command line in Query Analyzer,the query analyzer appears not to like that the stored procedure begins with a number. For example:
If I try an run the stored procedure as follows:
EXEC 17P_Comsetter
Then I get the following error message:
Msg 102, ..... Incorrect Syntax near '17'
I am using SQL server 2005. Does anyone know why I am getting this error message?
DataRow[] filterRows = ds.Tables[0].Select("Running Status= case State when 'True' then 'Running' When 'False' Then 'Stoped' end Where Active='1' and State='1'");
this is not working showing syntax error syntax error:operand is missing
I am trying to use this code:
PHP Code:
string connVac = "Database connection...";
SqlConnection dbConnVac = new SqlConnection(connVac);
DataSet dsInfo = new DataSet();
[code]....
But i need to change it so it shows the Job name, details and then the regions..
Im trying to retrieve a path name from my Pictures table the pathname is stored under picturepath in my Pictures table I dont know how to join it on to my current sql syntax it uses the UserID which is set by a session.
And im unsure what goes in the commented line for my image url string?
using (OdbcCommand cmd = new OdbcCommand("SELECT Wallpostings FROM WallPosting WHERE UserID=" + userId + " ORDER BY idWallPosting DESC", cn))
{
using (OdbcDataReader reader = cmd.ExecuteReader())
{
test1.Controls.Clear();
while (reader.Read())
{
System.Web.UI.HtmlControls.HtmlGenericControl div = new System.Web.UI.HtmlControls.HtmlGenericControl("div");
div.Attributes["class"] = "test";
//div.Style["float"] = "left";
div.ID = "test";
Image img = new Image();
img.ImageUrl = String.Format("{unsure}", reader.GetString(unsure));
// this line needs to be represented in sql syntax
img.AlternateText = "Test image";
div.Controls.Add(img);
div.Controls.Add(ParseControl(String.Format("{0}", reader.GetString(0))));
div.Style["clear"] = "both";
test1.Controls.Add(div);
understand what is going on in the code line below:
Table t = (Table)Page.FindControl("Panel1").FindControl("tbl");
I understand Page.FindControl("Panel1").FindControl("tbl");
Why is there a (Table) before the Page.FindControl?
I am looking for a code to HTML converter.Let say I have a code
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which is in formatted color. Now when I am converting it to the basic HTML convertor it is giving me without color.I have found http://www.manoli.net/csharpformat/ which is generating CSS for the same, which is not possible to add at runtime.
Server Error in '/' Application.
Incorrect syntax near ')'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near ')'.
Source Error:
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Line 25:SqlDataAdapter sda = new SqlDataAdapter(cmd);Line 26:DataSet ds = new DataSet();Line 27:sda.Fill(ds);Line 28:Label1.Text = ds.Tables.Count.ToString();Line 29:
iam using an empty div in which i am assigning values through an external javascript via ajax call iam also using an fck editor what i want to do using an internal javascript i want to set the contents of that div in the textarea of fckeditor but in the internal javascript when iam accessing the contents of that div then it is showing "undefined"....
View 1 RepliesI am trying to conver this to C# but Item is not a method in C#
Repno is a string variable of 3 characters
First if rep is not null
then
confirm that Repno the field salespnno from the query.
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Here is what I would like to express by Razor:
<b>@parameterMapping.Title</b> (Category: @parameterMapping.Category.Title, Regexp: @parameterMapping.Regexp)
But to make it parseable I have to write it this way:
<b>@parameterMapping.Title</b> <text>(Category: </text> @parameterMapping.Category.Title <text>, Regexp:</text> @parameterMapping.Regexp <text>)</text>
Are there better ways to solve this problem?
How does one create a .cshtml page in an ASP.NET web application? The option to choose Razor is obvious when using MVC - it appears when adding a view. But I can't seem to figure out how to accomplish this in a plain ASP.NET Web Application. Is it even possible?
View 1 RepliesI am trying to create a link that is distributed via eMail. This link will direct the user to a View inside my MVC2 application. I will need to pass 2 parameters with this link. Background: The eMail is an invitation. The user will click the link inside the eMail to RSVP for a meeting. When the link is clicked I want the user to be directed to a certain controller action/view. The parameters will be an eMail address (string) and a meeting ID (int).
The controller action will use the parameters to process logic that determines what the view will display.
An example using the following would be perfect:
Controller action / View name: RSVPmeeting
Parameter: AttendeeEMail (string)
Parameter: MeetingID (int)
What is the syntax for an not true or false if statement in nVelocity (or Velocity)?
And more importantly, where is this in the nVelocity docs? I've been Googling for quite a while to no avail.
I've tried several different combinations such as:
#if (!$artist.IsFestival)
$artist.FestivalName
#end
and
#if ($artist.IsFestival == false)
$artist.FestivalName
#end
So frustrating!
I have a repository function called getList which retrieves certain information that gets posted to it from a form. My form has 6 fields, and a user can enter searvh criteria in any or all the fields. According to what he has entered, I must execute a SQL string to retrieve matching information.
I have the following:
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But, if a user enters only a surname, my query will return no results. Is there a way format my sql string to allow default values, or maybe build the sql string at runtime. In MS-SQL it was easy to do, but how would one do it in LINQ??
I'm working on asp.net web application & for this use MS access for back end, My Query is given below which is successfully executed on MS Access but error on front end ("Syntax Error in FROM Clause")
select USER.EMPID as EMPID,USER.FULLNAME as FULLNAME,
USER.USERNAME as USERNAME,Employee.ROLEID,ROLE.ROLENAME AS ROLE
FROM USER
inner join employee on user.userid=employee.userid
inner join role on employee.roleid=role.roleid
WHERE USER.EMAIL='admin@itiersolutions.com'
AND USER.PASSWORD='cZdqAEeDV2EVzA1JNFJ6hQ=='
AND USER.STATUS='Enable'
I want to do a LIKE clause in an SQL statement. What is the proper syntax if this if my informaiton.I want to select personID, personName, personBuilding From Table: main27WHERE personName has the Name 'Smith' in it. Note that person Name is set up as: Last Name, First Name = Smith, John.The query works fine in my access database, but I am trying to put it in a VB.net application and I can't get it to pull any records when there are 18.
View 6 RepliesI keep getting the error: 'Incorrect Syntex near 'treatmentMedication'. Syntex error:
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This is my class code:
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