I have an ASP.NET web app. I reference an external .dll, made by another team member.When first stepping through my code (which calls this dll's class and method), I get an error (runtime of course) stating that the source cannot be found and if I want to step through disassembly.
What causes this? Also, is it possible to add .pdb files to a project's references?
how to delete child records in the first step
check if there is no more child using count row number if = 0 delete the key in parent table
parent table must have always child records in my case by Using sql data source Delete tab
The Error
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
The Story
I've written a page outside of Visual Web Developer 2010 that uses a SqlDataSource object along with a FormView object that works perfect. Building upon those awesome skills I obtained I started to build a project within Visual Web Developer, this time creating an Empty Web Application and went along my happy way building my new site. I used the same techniques and almost the same code as before - just pointing to a different table but I was met with the aforementioned error message.
The Confusing part
Here's the puzzling part - if I take my page I wrote outside of Visual Web Developer, again - it works perfect - no complaints, and add it as a page to the project I've built it now presents the same error message and I have no idea why.
The Tests Completed
I've backed off of targeting .NET 4.0 framework and went to 2.0 as I am not using any specific 4.0 controls or methods at this time. I've taken my page that originally gave me issue and recreated it outside of a Visual Web Developer project and instead as a stand alone page and the exact same code - copy, cut, paste - works perfect!
I get this error message when I connect to the data source on localhostERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specifiedthe connection string is
connectionString="Data Source=DRIVER={MySQL ODBC 3.51 Driver};SERVER=localhost;PORT=3306; DATABASE=database;UID=xxx;PWD=xxx;OPTION=3;pooling=false;"
providerName="System.Data.SqlClient"
it must be some kind of problem in the environment since the connection string works on a remote server. I downloaded the driver and added it with the Data source (ODBC) application in the control panel.
I have a ASP.NET webapplication where I use ODBCConnection to connect a MySQL server, it will take the connectionstring from the web.config file and this works grate.
But when I put the same code in a WPF application and hardcode the same connection string I get the followin exception when runnint ODBCConnection.Open() :
Data source name not found and no default driver specified
I have checked the ODBCConnection orbject and its instansiated with the exact same connectionstring as in the webapplication.
The connection string looks like this :
"DRIVER={MySQL ODBC 3.51 Driver};SERVER=X.X.X.X;DATABASE=X;USER=X;PASSWORD=X;OPTION=3"
The X is set to propert values
I am running both from the same computer so the MYSQL ODBC connection is installed correct.
I am displaying a table into a gridview for which I've a SQL query written which uses IF-ELSE condition. In one of the conditions, if the condition stands TRUE then one of the coloms should be eliminated from the table. But I constantly get an error:"A field or property with the name 'IXC_Vendor_Circuit_ID' was not found on the selected data source."
View 6 RepliesI want to develop a mail server like gmail,yahoo etc but I really don't know where to start .
give me the steps to follow in developing this application.
I am using asp.net sitemap with the in-built asp.net menu but this is very 'dull'. I want to apply CSS and jQuery to give it a better visual look and feel. I have read various articles based on [URL] However, i really liked [URL]
Is there any examples or tutorials similar to this which are FREE?
AutoComplete is an ASP.NET AJAX extender that can be attached to any TextBox control, and will associate that control with a popup panel to display words that begin with the prefix typed into the textbox.
View 1 RepliesI am using a wizard with 2 steps: Step 1: I enter some values in few textboxes, which in turn are stored in some hidden variables Step 2: There are some more textboxes including the texboxes in step 1 Example: in step 1 there are two textboxes Customer Name & Email ID In step 2 there are two more texboxes Customer Name, Email ID, Company Name and Age Now the values in step 1 are stored in 2 hidden variables lblCustomerName and lblEmailId respectively. Now how do I automatically populate these two fields which are already entered in step 1, in the textboxes present in step 2, is my question?
View 1 RepliesWould it be possible to creae a web form that will take an Excel sheet of email address or SQL Server Database and mass email to these people through a web form? If so, does anyone have or know some step by step instruction on how to do this?
View 19 Repliesi am using a simple form page with 4 steps in it i am not using any wizard control for this i want to highlight the current step what i have to do for achieving this functionality.
View 1 RepliesWell as the title says I am a total noob to web programming. I have experience in XHTML and CSS and that is it, and it is time to expand my knowledge and start making much better websites
I have a project to completely rewrite the site [URL] and want to do it in ASP.NET rather then PHP, and since I do not know either language I would rather learn this one instead.
My question is simple, where do I start? I learn well by reading books and doing examples and building example websites, that sort of stuff. Can anyone suggest any good book titles that will get me started in the right direction? A friend sent me the PDF version of the book: "Learning ASP.NET 3.5, 2nd Edition (Build web applications with ASP.NET 3.5, AJAX, Linq and MORE)." This is so far the only resource I have. The only thing about that book is that it promotes using the WYSIWYG style of web design and I
have always been tought to stay away from that.
I have created a User Control with 2 Textboxes and a Button. Then I have built that control into my Master Page. I have also created the code easily enough for the login - see below;
[Code]....
However, I have a problem. I want to do the following;
1. Let them Login
2. Let them Logout
3. And I want to try and use this code into a Global Variable
What is the easiest way possible to do this, as I do NOT want to use the Asp.Net Login facilities already provided.
[Code]....
View 1 RepliesI have created a gridview at runtime. its working fine when i load the grid first time. after when i am selecting next value from ddl to load grid according to that option(selecting from dropdown list and coresponding values showing in grid) showing error that "A field or property with the name 'datafield name' was not found on the selected data source." might be i am getting this error becuze the privious value is not being cleared" can anybody help me with this problem.
View 2 RepliesI put a sql statement into the textbox,then the result will be bound to the gridview in the page. first time,sql statement is "selecte * from A(B)",and the gridview is ok. second time,sql statement is "selecte * from B(A)",then the gridview will throw a exception the exception is "A field or property with the name 'aa' was not found on the selected data source. i have two tables A and B."
View 5 RepliesI am using two gridviews with one datasourse. I am getting one errorÂ
A field or property with the name 'Empid' was not found on the selected data source. Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: A field or property with the name 'Empid' was not found on the selected data source. Source Error:Â
My code is  Â
<asp:GridViewid="gridview"
runat="server" DataSourceID = "SqlDataSource1"
PageSize="30" EmptyDataText = "No Records Found" EmptyDataRowStyle-HorizontalAlign ="Center"
AllowPaging="true"
[Code]....
i decided that asp.net is the one for me. But i dont know any of .net languages. My teacher recommended c# but i dont nedd to learn c# completely but only basics with asp.net. Is there any book or website that teaches c# specifically for asp.net
View 1 Replieshow i can load image in web page with image resolution step by step as my internet connection speed?
View 2 Replieshow can i start ? from where ? everything...and if possible then send me some projects with database.
View 3 RepliesI'm very new at this ...where i can find some step by step videos on Databinding Checkboxes?
View 2 RepliesI'm study MVC width the NerdDinner tutorial, I've been writting this application step by step, I not understand why the UpdateModel not working, Help me please!!!, this is my code
[Code]....
Ok, so since my last post I've tested the Gridview and DataView controls and it appears as though those would work a little better. However, I'm having difficultly implementing the "Edit mode" on those controls to allow the user to edit the data. I can't really seem to find a "step by step" example of of how to do it.
View 10 RepliesI know that you can use exclamation sign to bind array of simple types (like string) to GridView like this
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:BoundField HeaderText="Array Field" DataField="!" />
</Columns>
</asp:GridView>
But this doesn't seem to be the case with DataNavigateUrlFields
<asp:HyperLinkField DataNavigateUrlFields="!" DataNavigateUrlFormatString="RoleInformation.aspx?role={0}" Text="Manage users" />
and I get following error:A field or property with the name '!' was not found on the selected data source.
