Inserting XML Help

Hi,

I am creating a web form that requires a lot of validation. I use many of the validation control in asp.net already like RequiredFieldValidator and CompareValidator. 

My Problem: after my custom validation for the value entered return an error message, and I pressed enter key when the field is empty, my custom error message is overlapped by my ValidationSummary. 

Setting my custom error to visible = false on button click also does not seem to work as it requires for me to enter the value first.

This made me think, is there a way to insert my custom validation inside the ValidationSummary as an error message like for other validation control?

Thanks in advance

I'm using Dynamic Data with Entity Framework in VS2010.

Let's say my table has these fields:

MyTable
ID (PK)
PersonID (FK)
LocationID (FK)
TotalItemsSold

Hypothetical scenario (it's easier for me to explain this way, so just bear with me for now)... But let's say each row in the table represents "how many items were sold by such-and-such employee at such-and-such location," where location and person are foreign keys which are referencing other tables.  Basically, there should be no more than a ONE row which has a particular combination of Person and Location.  Makes sense?

So, when inserting new rows using my Dynamic Data app, the insert form displays editable fields for Person (dropdown), Location (dropdown), and Items Sold (textbox).  How do I prevent users from inserting another row into the table containing an already-existing combination of Person and Location?   How do I displaying useful feedback to them in the event that they DO attempt to do this?

I have several thoughts about this, but since I'm new to Dynamic Data, I'm not sure which way to go.  For example:

Option 1:  Use "cascading dropdowns" approach in the insert form and only pull in the "allowed" combinations of the two dropd

Hello,

I am new to this, so bear with me.  I am writing an application in C# that uses LINQ to validate a datacontext off a textbox to see if the record exists already.  If the record does exist I inserted an if statement to advise the user that the record exists, if the record does not exist I would like to allow the record to be added to the database.  If I take out my else statement everything works fine as far as inserting goes, but I do not want to allow inserts in this scenario.  I have tried moving the if and else statement to different parts of the code but can't quite figure this one out.  Any help would be apprecaited, attached is the code.  This code is set to a button press.  As a matter of fact, if you see any other errors along the way please feel free to point them out. 

Thanks,

Pete

    protected void enterBTN_Click(object sender, EventArgs e)
    {
        //make new data context

        SHCDataContext insNewAll = new SHCDataContext();
 
        //LINQ to check if customer exists in database
        var checkExisting = from c in insNewAll.Customers
                            where c.custLastName.Contains(custLastNameTB.Text.ToString())
                            select c.custLastName;
        //make list to store values
        L

I have been following the tutorials from Scott Mitchell on this site.  I am trying to insert a new record from the gridview footer.  I have my BLL set up as a .cs class in the App Code folder.  When I fill in the fields and click add, nothing happens.  The page refreshes and the text boxes empty, but nothing is added to the database.  The edit and delete functions work fine.  Have I put something in the wrong spot?

I have the rowcommand and the datasource_inserting on the code page as below.

protected void Oems_RowCommand(object sender, GridViewCommandEventArgs e)
{
    // Insert data if the CommandName == "Insert" 
    // and the validation controls indicate valid data...
    if (e.CommandName == "Insert" && Page.IsValid)
    {
        // TODO: Insert new record...
        OemsDataSource1.Insert();
    }
}


protected void OemsDataSource1_Inserting
(object sender, ObjectDataSourceMethodEventArgs e)
{
    // Programmatically reference Web controls in the inserting interface...
    TextBox txtOem = (TextBox)GridView1.FooterRow.FindControl("txtOem");
    TextBox txtOemStreet = (TextBox)GridView1.FooterRow.FindControl("txtOemStreet");
    TextBox txtOemCity = (TextBox)GridView1.FooterRow.FindControl("txtOemCity");
    DropDownList

Hi all,

I have a web form, in that i'll enter daily expense details.

After i press save button, the data i entered are saved into an excel sheet.

I don't have idea how to save the data to excel sheet, so your help for this greatly welcome. 

Hello,

A vendor is providing content which needs to be inserted into the db. The content is basically questions with options and explanations. An example is below.

=========================================

Hello!

I'm getting  the following error message: 

Unable to cast object of type 'System.Data.Linq.DataQuery`1[Username]' to type 'Username'.

I've been searching but can't find a solution.  This particular table has 4 columns. The first column is the int indentifier.  Column 2 is "username" (varchar50) and is the primary key.  Column3 is "userID" (uniqueidentifier) and column 4 is "active" (varchar5) .

Try
            Dim dc As New DataClassesDataContext
            Dim c3 As New Username With {.userID = userGuid, _
                                    .username = userCustomName, _
                                    .active = "False"}

            dc.Usernames.InsertOnSubmit(c3)
            dc.SubmitChanges()

        Catch ex As Exception
            Throw ex
        End Try