MVC :: Finding Correct Syntax To Update Model - Tryupdatemodel
Jan 19, 2011
when trying to update the db from the edit page, i would likt to take one field from the formcollection change things in it and update the model with the changed field.
I have following problem: in the Controller I call TryUpdateModel to send the changes made in the form back to the database. Then I save the entity, but no changes to database are made.
Here is the code from Controller:
[Code]....
Then the changes made to database. (ChangingSet have then also pending changes).
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.
I am just not able to get the syntax right for the below code,
Dim HeaderCount As Integer = readerXML.HeaderCount() Dim NewTable As String NewTable = "CREATE TABLE " + tbCustomerFileName.Text + " (" + " RowId smallint" + " IDENTITY(1,1)" + " PRIMARY KEY CLUSTERED," For I = 0 To [HeaderCount] NewTable = NewTable + readerXML.Item(I) + " DEFAULT 'New Position - title not formalized yet'," + " varchar(50) NOT NULL," Next [I] + ")" ...this part gives me an error ssaying incorrect syntax.
I am trying to upload an excel file and based on the number of headers in the file, I want to generate columns, however I am just not able to get this going because i am getting syntax error, the main problem being I am not able to put the brackets at the right place.
In my web.config, I have attached a SQL express database .. as follows: <add name="eHNDBConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename="C:UsersDell-XPS1330DocumentsVisual Studio 2005WebSitesWebSite4eHNDB.mdf";Integrated Security=True;Connect Timeout=30;User Instance=True" providerName="System.Data.SqlClient" />
I need to upload this to my web server so I need to remove the local link .. I tried:
.. but i keep getting this error message when i try to open the page that accesses the DB. An attempt to attach an auto-named database for file eHNDB.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
1- what is the correct syntax to use in my web.comfig?
2- when online, i'm gonna be using sql server and not sql express .. what considerations / changes should i apply as well?
I have a listview (userid, users) and a checkbox. I would like to select the checkbox and store the userid in a textbox then into a session page. I am having issues with the code as it seems incorrect, due to the listview1.row.
What is the correct syntax in VB.net 2008 web developer in SQL to do a WHERE clause where the data is >= to the current date? I can't figure out how you pass now into the SQL statement.
I made a few changes to the DB in SQL server management studio then right clicked on the .edmx doc to get it to update. That seemed to work fine but when i compiled the app everything that referenced the EF seems to be broken.The Error list now contains the below error for all classes that used it.
The type or namespace name '' could not be found (are you missing a using directive or an assembly reference?)
public class SectionModelBinder : DefaultModelBinder { public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) { var value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName); if (bindingContext.ModelType.IsAssignableFrom(typeof(Section)) && value != null) { if (Utilities.IsInteger(value.AttemptedValue)) return Section.GetById(Convert.ToInt32(value.AttemptedValue)); else if (value.AttemptedValue == "") return null; } return base.BindModel(controllerContext, bindingContext); } }
Now within my controller i can say:
[HttpPost] public ActionResult Create(FormCollection collection) { var category = new Category(); if (!TryUpdateModel(category, "Category") return View(new CategoryForm(category, _sectionRepository().GetAll())); }
This validates nicely and the correct value for the section is assigned when the model is updated, however it does not select the correct value if another property doesn't validate.
in the client app, i want to handle SOAP exceptions thrown by web service. Currently, when exceptions are thrown by the web service, Detail.OuterXml property of SOAPException class shows below XML data. In code below, what's the correct method to reference namespace, values, etc to get to the error-code, error-field-name, error-message and error-description value?
I've created an Expression Web form with a SQL datasource which is doing a query/select statement.Somehow it appears that I'm making a syntax error. When I divide the query in two and execute them separate, it works fine.I need to filter for an EventType, Region and Today's date + a custom interval (like 7 day's for a week)he parameters come from a search form where the user can select these values via a dropdown list.The two separate (and working) queries within my form are:Query nr.1 :
"Select * from Events WHERE (([EventType] LIKE '%' + @EventType + '%') AND ([Region] LIKE '%' + @Region + '%'))"> <asp:formparameter DefaultValue="%" FormField="EventType" />
I have a control in a content page that I want to find the width and left attributes of the style. I am trying to find this from Javascript code that exists on the Master Page. How do I do that?
...for getting rid of precondition="managedHandler". Where can I find the names and types of the other modules? I suspected that somewhere in the hierarchy there should be some XML describing the defaults. However, I cannot find it. Am I missing some machine.config, web.config file?
I have this Insert statement working fine: [Code]....
It inserts a new record into a single table. The PK is a field named QID.what the equivalent Update code would be? I'm not sure of the syntax for the Update values (old and new) and Where clause.I'm assuming something beginning with: existingQ.Update
here is my update query syntax.my problem is.if i update only logo1 and logo3 with null logo2 and img null then my query should be update the other record.just dont update null value record but other should be update.but below my query can not update any record.
UPDATE tbitem set itemname= @itemname,note=@note, price=@price,qty=@qty,logo1=@logo1, logo2=@logo2,logo3=@logo3,img=@img where id =@id and @logo1 is null and @logo2 is null and @logo3 is null and @img is null