I have made a AutoNumber Identity Column and iset Identity Specification property to "Yes" to keep the Identity Increment and Identity Seed values as default ones.
But when i use a datagriview and use a table adapter the column don´t appear on the datagridview.
Me.AUTONUMER2TableAdapter1.Fill(Me.Teste1DataSet3.AUTONUMER2)
So how to show to a AutoNumber Identity Column on a datagriview ?
i have gridview that shows some information i want to have column that be autonumber shows the row number of gridview.for example i have 7 row in gridview it show 1 for first row ,2 second row,3 third row,... how can i do that?
View 3 RepliesHow to handle this error
"An explicit value for the identity column in table 'UserActivation' can only be specified when a column list is used and IDENTITY_INSERT is ON."
I have error:
Cannot insert explicit value for identity column in table 'UserDetails' when IDENTITY_INSERT is set to OFF.
I'm trying to insert a record through a BLL (Business Logic Layer) class with an 'Insert' button attached to the FooterTemplate of a GridView2. My code:
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BLL layer code:
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The field 'idUser' is autoincremented. When I use SqlDataSource with a DetailsView, add option it adds a record and autoincrements the 'isUser'.
I am developing a asp.net application and i am using SQL Server 2008. I took a IDENTITY column as Record_ID for detail table where i will have trillions of records per year. So just want to ask whats the largest number record id (identity) column can hold and in ASP.NET which data type i should use to handle record id as i am using this id as a reference to update the table data. I don't want to end up being trapped some day.
View 1 RepliesI am working on a web app for an online photo album. It is the last project in Scott Mitchell's book: "ASP.Net 2.0 in 24 hours".
I am creating a page where users can enter new photo images. The functionality for uploading an image will come later. I am working on just inserting a new row into the Pictures table with an optional category, a required title and a required description.
I am getting an error when I try to insert a new row.
Here is a screenshot of the page with a shot of the dropdown list.
The Categories are user-specific. I am getting the correct values retrieved.
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There are two pretty simple database tables involved here.
NOTE: The CategoryID and PIctureID are both autoincrement integer columns.
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The page uses a DetailsView that uses a SqlDataSource that uses the Pictures table. (The DetailsView's Default Mode property is set to "Insert". The "Enable Inserting" checkbox is also checked.)
The dropdown list uses a dropdown control that uses a SqlDataSource that uses the Categories table.
When the "Insert" button is clicked the CategoryID value associated with selected (Category) Name on the dropdown list will be used along with the Title and Description values to insert a row in to the Pictures table. (If no Category value is selected, then a null value will be used for the CategoryID. This is OK because the CategoryID column in the Pictures table allows nulls.)
My problem is that I am getting this error:
Cannot insert explicit value for identity column in table 'Pictures' when IDENTITY_INSERT is set to OFF.
(FYI: I have the full version of both Visual Studio and SQL Server.)
Here is my source code for the page:
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I have gridview and want to show datalist in grid view view column on click of linkbutton show.
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how I can make the first column in my GridView with Edit, Delete etc. buttons always shown on the screen, even when scrolled far to the right?
View 3 RepliesI have a gridview and in this grid one link button "view" is in each row
when we click on view button we want to show the another grid in the same column
I am binding a gridview(bounded field columns). see code below
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
CellPadding="4" CssClass="GridViewStyle" Width="700px" OnRowEditing="GridView1_RowEditing"> [code]....
there are three columns 1st is PL and 2nd is Finance . They bind some rows in gridview. both have float value; now i want that tha 3rd column
Total should show the value of (PL+Finance)
should I take the 3rd column as template field
Resetting IDENTITY column to a new valueDuring application development we always entry some test data also our tester test with test data and as a result if the table contains IDENTITY columns( specially ID column) which incremented to the number of data already entered.
However, when the application goes running with real data to the client and the client want his ID values from starting 1, then we need to RESEED the value of the IDENTITY column of the table after clearing all data. This can be done as bellows:
DBCC CHECKIDENT (TableName, RESEED, 0)
However, can be reseed with any values instead of zero(0) in the above statement.
I have an identity column that increment by 1 on every insert. I have deleted all the rows using delete query but the identity coulumn is still not reseting to zero, how do i reset it, as it was when the table was first created.
View 4 RepliesI have created small database prods. I have created one table Products. I have given columns like productid, productname, price. after creating table. I got an idea to add identity to productid ie., auto increment. how to add identity to existing column.
View 5 RepliesI m Using DataList Controll for the time being. But i wana use DridView Controll that should display Data Horizontally. Is it Possible? if Yes then How?
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I have a table converted from Access and the identity keys were lost. Now I need to make the id column the identity column, but it already has a lot of null values, how do I auto generate integer values for the null rows? The row ids are incremented, so if there is a way to auto increment the ids
View 7 RepliesI have in my code a gridview that I redirect to excel, it works fine when I have data in the data set. waht I want is to show column headers when there is no data right now what i get is empty sheet.
View 7 RepliesI am trying to show/hide TemplateField of gridview but not getting it... here is ma sample aspx code
<asp:TemplateField HeaderText="ColumnA">
<ItemTemplate>
<asp:Label ID="lblTest" runat="server" Text=' <%# Eval("Test")>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
Now in server side i am trying to hide this column but failed !!
protected void gv_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header || e.Row.RowType == DataControlRowType.DataRow)
gv.Columns[2].HeaderStyle.CssClass = "hiddenClass"; // here i am setting display:None using css class
}
how to show/hide TemplateField on server side
i want show ten record from table in the gridview at 2 column in five row.
like this:
------------gridview-------------
record1 | record2
record3 | record4
record5 | record6
record7 | record8
record9 | record10
1 2 3 ...
-----------------------
I have one table it's contain multiple columns and one of them is
[Call_Ref_No] [numeric](18, 0) IDENTITY(1,1) NOT NULL
In this column I am facing issue is some time its missing the identity value... For example
1
2
3
5
6
8
9
Here in this example 4 and 7 is missing...I could not able to find these two reference in my table so what I can do? How I can stop this occurrence.
I am trying to get the identity column on which the record is inserted but i couldn't using stored procedure
see
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My Code Using ASP.NET C# i am trying to display the identity in textbox
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Show/Hide Edit button depending on column value?
View 3 RepliesI have a gridview, which contains a template field with a button. On this button, I want to show and hide another column with this one button. I don't want to use Java Script because my site already uses a lot of this and AJAX. So, can someone show an example of some code behind, which is what I want to do on how to show and hide another column on a gridview?
View 1 RepliesHow can i add a progressbar to a search of a datagriview in my code :
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim nwindConn As SqlConnection = New SqlConnection("Data Source=.SQLEXPRESS;Initial Catalog=teste1;Integrated Security=SSPI;")
Dim selectCMD As SqlCommand = New SqlCommand("SELECT Username from TABELA1 WHERE Username = '" + TextBox2.Text + "'", nwindConn)
selectCMD.CommandTimeout = 30
Dim custDA As SqlDataAdapter = New SqlDataAdapter
custDA.SelectCommand = selectCMD
nwindConn.Open()
Dim custDS As DataSet = New DataSet
custDA.Fill(custDS, "TABELA1")
Dim bs As New BindingSource()
bs.DataSource = custDS.Tables("TABELA1")
' your dataset/data table
DataGridView1.DataSource = bs
usernameLabel.Text = IIf(custDS.Tables("TABELA1").Rows.Count > 0, "O utilizador jĂ¡ existe", "PoderĂ¡ registar-se com esste nome")
nwindConn.Close()
End Sub
The wierd thing is this was working fine and then it just started throwing this error,
"Cannot insert explicit value for identity column in table 'Reports' when IDENTITY_INSERT is set to OFF."
Here is the code:
[Code]....
I am in a serious trouble right now, i wanted to know that how to write a query in LINQ to SQL to retrieve identity column's current value before inserting any value.
I need this cos i m building a windows app n i need to display this value before inserting a record. I have tried DataContext.ExecuteCommand('DBCC CHECKIDENT (Tablename)') but it returns the number of rows modified.