SQL OutputCache GridView

Oct 24, 2007

I'm trying to cache the contents of a gridivew unless another page, or sorting method are being called.  I tried to use the VaryByParam method, but I'm not having any luck, I keep getting the same page sent back to me. Here's what my code looks like.

<%@ OutputCache Duration="180" VaryByParam="Page$, Sort$" %>

 Any help would be appreciated.

Stephen

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Want Error Message To Appear When No Database Results Were Returned In GridView, Also Other GridView Issues.

Jun 12, 2008

Hi, I am seeking a hopefully easy solution to spit back an error message when a user receives no results from a SQL server db with no results. My code looks like this What is in bold is the relevant subroutine for this problem I'm having.   Partial Class collegedb_Default Inherits System.Web.UI.Page Protected Sub submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles submit.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] WHERE [name] like '%" & textbox1.Text & "%'" SqlDataSource1.DataBind() If (SqlDataSource1 = System.DBNull) Then no_match.Text = "Your search returned no results, try looking manually." End If End Sub Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End Sub Protected Sub reset_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles reset.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End SubEnd Class  I'm probably doing this completely wrong, I'm a .net newb. Any help would be appreciated. Basically I have GridView spitting out info from a db upon Page Load, but i also have a search bar above that. The search function works, but when it returns nothing, I want an error message to be displayed. I have a label setup called "no_match" but I'm getting compiler errors. Also, next to the submit button, I also have another button (Protected sub reset) that I was hoping to be able to return all results back on the page, similar to if a user is just loading the page fresh. I'd think that my logic would be OK, by just repeating the source code from page_load, but that doens't work.The button just does nothing. One final question, unrelated. After I set this default.aspx page up, sorting by number on the bottom of gridview, ie. 1,2,3,4, etc, worked fine. But now that paging feature, as long with the sorting headers, don't work! I do notice on the status bar in the browser, that I receive an error that says, "error on page...and it referers to javascript:_doPostBack('GridView1, etc etc)...I have no clue why this happened. Any help would be appreciated, thanks! 

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Nov 29, 2006

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Feb 4, 2007

Hi,
I use WVD and SQL Express 2005.
I have a table “SignIn� that one of fields inserted automatically by getdate()
And I have GridView that I use to display this table because I would like take advantage of GridView sorting and paging methods that are embedded in.
Currently I display all records at once.
 
My problem is how to make the GridView show today’s records only.
I tried this code below, but I get only this message “There are no data records to display.�
 
 
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:RC1 %>"
ProviderName="<%$ ConnectionStrings:RC1.ProviderName %>"
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</asp:SqlDataSource>
 
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Apr 17, 2008

Hi
I have a business search box and gridview pair. When the user enters a business name, the search results are displayed. I also generate a "more information" link which takes the user to a new page, passing the business name ("memberId")to this page (see the template field below).
The problem I have is if the name contains a QUOTE (') or other special characters. The "memberId" is chopped off at the quote (e.g. "Harry's Store" is passed as "Harry").
Can anyone tell me a way around this please? Is there anything I can do with the Eval method?
Kind regards,
Garrett
 
<asp:TemplateField HeaderText="More Info">
<ItemTemplate>
<a href='member_page.aspx?memberId=<%# Eval("co_name") %>'>more</a>
</ItemTemplate>
<ItemStyle Font-Bold="False" />
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Mar 29, 2006

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Aug 2, 2006

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Jan 15, 2007

I tried doing a text box search within Gridview. My code are as follows. However, when I clicked on the search button, nothing shown.
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Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
 
           SqlDataSource1.SelectCommand = "SELECT * FROM carrier_list WHERE carrierName LIKE '%' + @carrierName + '%'"
 
End Sub
 
Sub doSearch(ByVal Source As Object, ByVal E As EventArgs)
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GridViewCarrierList.DataBind()
 
End Sub
 
HTML CODES (Snippet)
<asp:Button ID="btnSearchCarrier" runat="server" onclick="doSearch" Text="Search" />
' Gridview<asp:GridView ID="GridViewCarrierList" runat="server" DataSourceID="SqlDataSource1" >
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>" SelectCommand="SELECT * FROM carrier_list">
</asp:SqlDataSource>
 
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>">
<SelectParameters>
<asp:ControlParameter ControlID="txtSearchCarrier" Name="carrierName" PropertyName="Text" Type="String"></asp:ControlParameter>
</SelectParameters>
 
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Mar 29, 2007

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Dec 3, 2007

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For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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Mar 20, 2008

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Dim objConn As SqlConnection = New SqlConnection(ConnectionString)
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Apr 14, 2006

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Here is my GridView and SqlDataSource:
<asp:GridView ID="Results" runat="server" AllowPaging="True" AllowSorting="True"
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<ItemStyle HorizontalAlign="Center" CssClass="tdResults" />
<HeaderStyle HorizontalAlign="Center" CssClass="tdHeaderResults" />
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<asp:BoundField DataField="DpInfo" HeaderText="Delivery Point" SortExpression="DpInfo" >
<HeaderStyle HorizontalAlign="Left" CssClass="tdHeaderResults" />
<ItemStyle CssClass="tdResults" />
</asp:BoundField>
<asp:HyperLinkField DataNavigateUrlFields="CuCode,OrderID" DataNavigateUrlFormatString="TCCustDetail.asp?CuCode={0}&amp;OrderID={1}"
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<ItemStyle CssClass="tdResults" HorizontalAlign="Center" />
<HeaderStyle CssClass="tdHeaderResults" HorizontalAlign="Center" />
</asp:HyperLinkField>
<asp:BoundField HeaderText="Order Date" SortExpression="OrderDate" DataField="OrderDate" >
<ItemStyle HorizontalAlign="Center" CssClass="tdResults" />
<HeaderStyle HorizontalAlign="Center" CssClass="tdHeaderResults" />
</asp:BoundField>
<asp:BoundField DataField="ReqDeliveryDate" HeaderText="Req Delivery Date" SortExpression="ReqDeliveryDate" >
<ItemStyle HorizontalAlign="Center" CssClass="tdResults" />
<HeaderStyle HorizontalAlign="Center" CssClass="tdHeaderResults" />
</asp:BoundField>
<asp:BoundField DataField="StatusDate" HeaderText="Status Date" SortExpression="StatusDate">
<ItemStyle HorizontalAlign="Center" CssClass="tdResults" />
<HeaderStyle HorizontalAlign="Center" CssClass="tdHeaderResults" />
</asp:BoundField>
<asp:BoundField DataField="ManifestNo" HeaderText="Manifest No" SortExpression="ManifestNo">
<ItemStyle HorizontalAlign="Center" CssClass="tdResults" />
<HeaderStyle HorizontalAlign="Center" CssClass="tdHeaderResults" />
</asp:BoundField>
<asp:BoundField DataField="CustomerPO" HeaderText="P.O. No" SortExpression="CustomerPO">
<ItemStyle HorizontalAlign="Center" CssClass="tdResults" />
<HeaderStyle HorizontalAlign="Center" CssClass="tdHeaderResults" />
</asp:BoundField>
<asp:BoundField DataField="Class" HeaderText="Class" SortExpression="Class">
<ItemStyle HorizontalAlign="Left" CssClass="tdResults" />
<HeaderStyle HorizontalAlign="Left" CssClass="tdHeaderResults" />
</asp:BoundField>
<asp:BoundField DataField="OrderStatus" HeaderText="Order Status" SortExpression="StatusSort">
<ItemStyle HorizontalAlign="Left" CssClass="tdResults" />
<HeaderStyle HorizontalAlign="Left" CssClass="tdHeaderResults" />
</asp:BoundField>
</Columns>
<HeaderStyle ForeColor="White" HorizontalAlign="Left" />
<AlternatingRowStyle CssClass="tdResultsAltRowColor" />
</asp:GridView>
<asp:SqlDataSource ID="SqlResults" runat="server" ConnectionString="<%$ ConnectionStrings:TransportationConnectionString %>" SelectCommand="GetOrderSummaryResults" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:Parameter DefaultValue="10681" Name="CuCode" Type="String" />
<asp:Parameter DefaultValue="" Name="DaCode" Type="String" />
<asp:Parameter DefaultValue="" Name="DpCode" Type="String" />
<asp:Parameter DefaultValue="" Name="OrderID" Type="String" />
<asp:Parameter DefaultValue="" Name="ManifestNo" Type="String" />
<asp:Parameter DefaultValue="" Name="PONo" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
I can get it to fill with data by manually filling the GridView without using a SqlDataSource but then I cannot get the sorting to work when I do it that way.  Actually not sure if the sorting will work this way either as I cannot get it to fill with data.  Any ideas would be much appreciated.

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Jun 7, 2006

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runat="server"></asp:TextBox>                                               <!--or use this in SQL : Select Convert(VarChar(10), GetDate(), 103)-->                                               <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"                                                ControlToValidate="txtDueDate" Display="None" ErrorMessage="Please enter a Due Date" />                                                <asp:CompareValidator ID="CompareValidator2" runat="server"                                               Display="None" ErrorMessage="Please enter a valid Due Date in format dd/mm/yyyy"                                               ControlToValidate="txtDueDate" Type="Date" Operator="DataTypeCheck"></asp:CompareValidator>                                            </EditItemTemplate>                                            <ItemStyle Height="24px" Width="65px" />                                            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<asp:TemplateField>                                             <ItemTemplate>                                               <asp:LinkButton ID="DeleteButton"                                                  CommandArgument='<%# Eval("ForecastKey") %>'                                                  CommandName="Delete" runat="server">                                                 Delete</asp:LinkButton>                                             </ItemTemplate>                                           </asp:TemplateField>                                         </Columns>                </asp:GridView>
And here is my stored proc :
CREATE procedure dbo.UpdateForecast
( @ForecastKey int, @CompanyKey bigint, @ForecastType char(1), @MoneyValue float, @ForecastPercentage float, @DueDate datetime, @UserKey int)
as
update Forecastset CompanySiteKey = @CompanyKey,MoneyValue = @MoneyValue,Probability = @ForecastPercentage,ForecastType = @ForecastType,InvoiceDate = @DueDate,UserKey = @UserKeywhere ForecastKey = @ForecastKeyGO
Can anybody with more experience of using gridview please tell me where I am going wrong?
Cheers,
Mike

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Hi

I want to Enable Editing in the GridView
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and when I try to build the update query in the update tap
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so how can enable editing in the GridView that take from
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please help me
and thanks

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Feb 29, 2008

First of all I like to say hello. Its my first post and I hope somebody will be so kind and help me.
I have 3 tables in a database. They look like follow:

1. Table called State:
------------------------------
Id
Caption

2. Table called Craft:
-----------------------------
Id
Caption

3. Table called Wage:
-------------------------------
StateId
CraftId
Wage (decimal)

What I'm trying to do is, create a crosstable like the following and display it in a Gridview

Texas California Washington ...
digging 25,60 31,42 ...

masonry works 40.66 ... ...


So, the columns come from table State, the row titles come from Craft and the values from Wage. After changing the values I want to save values back to Wage.

I started to build this crosstable but faced several problems. For example I dont know how to set a Caption on the left side of each row (Caption of table Craft).
And even worse, how shall I update table Wage if there are no Id's in the crosstable anymore to make sure that I save the Value on the right place back in table Wage.

It would be very kind if somebody has a solution or a method of resolution.

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Jun 19, 2006

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ProviderName="<%$ ConnectionStrings:db1ConnectionString.ProviderName %>" SelectCommand="SELECT [ID], [Name], [Date] FROM [Table1]" DeleteCommand="DELETE FROM [Table1] WHERE [ID] = ?" InsertCommand="INSERT INTO [Table1] ([ID], [Name], [Date]) VALUES (?, ?, ?)" UpdateCommand="UPDATE [Table1] SET [Name] = ?, [Date] = ? WHERE [ID] = ?">
<DeleteParameters>
<asp:Parameter Name="ID" Type="Int32" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="Name" Type="String" />
<asp:Parameter Name="Date" Type="DateTime" DefaultValue="<% Now() %>" />
<asp:Parameter Name="ID" Type="Int32" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="ID" Type="Int32" />
<asp:Parameter Name="Name" Type="String" />
<asp:Parameter Name="Date" Type="DateTime" />
</InsertParameters>
</asp:SqlDataSource>


<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="ID"
DataSourceID="SqlDataSource1">
<Columns>
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:BoundField DataField="Date" HeaderText="Date" ReadOnly="true" SortExpression="Date" />
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Hi All,
I am new to development of asp. I have an SQLDataSource set as the data source for a grid view.  When I click on the edit link in the Gridview, change the data, and click update, the old data  is still displayed in the row.
I found exact same issue as here -- http://forums.asp.net/thread/1217014.aspx
Solution in the above thread is to add this
            {                if (reader != null) reader.Close();            }            conn.Close();
How do I apply above solution in my situation ?
 
I am updating through stored procedure.and don't have code at background.  My code is
Datasource :
<asp:SqlDataSource
ID="ds"
runat="server"
ConnectionString="<%$ ConnectionStrings:ds %>"

CancelSelectOnNullParameter="False"
ProviderName="<%$ ConnectionStrings:ds.ProviderName%>"
UpdateCommand="usp_save"
UpdateCommandType="StoredProcedure"
EnableCaching="False">
 
<UpdateParameters>
<asp:Parameter Name="field1" Type="String" />
<asp:Parameter Name="field2" Type="String" />
<asp:Parameter Name="field3" Type="String" />
<asp:Parameter Name="field4" Type="String"/>
<asp:ControlParameter Name="field5" Type="String" ControlID = "label7" />
</UpdateParameters>
 

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Sep 26, 2006

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Oct 23, 2006

Info: (vs 2005, sql server 2005, asp 2.0, C# project)I need to pass a variable from my web form to a stored procedure which should return a dataset to a gridview.My stored proc works fine but it’s not returning properly (or at all). Here is my stored proc:set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER PROCEDURE [dbo].[HrsUsed]
-- Add the parameters for the stored procedure here
@idUser INT
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

-- Insert statements for procedure here

SELECT DATENAME(mm, leaveDate) + ' ' + DATENAME(yyyy, leaveDate) AS 'Leave Date', totalV, totalS
FROM tblLeave
WHERE idUser = @idUser
ORDER BY leaveDate DESC

RETURN

END
 Here is my code: try
{
SqlConnection cxnHrsUsed = new SqlConnection(ConfigurationManager.ConnectionStrings["cxnLeaveRecords"].ConnectionString);

SqlCommand cmdHrsUsed = new SqlCommand("HrsUsed", cxnHrsUsed);
cmdHrsUsed.CommandType = CommandType.StoredProcedure;

cmdHrsUsed.Parameters.Add("@idUser", SqlDbType.Int).Direction = ParameterDirection.Input;
cmdHoursUsed.Parameters["@idUser"].Value = Session["sessionUserID"];

cmdHrsUsed.Connection.Open();

gvHrsUsed.DataSource = cmdHrsUsed.ExecuteReader();
gvHrsUsed.DataBind();
cmdHrsUsed.Connection.Close();

}
catch (Exception ex)
{
lblStatus.Text = ex.Message;
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Oct 31, 2006

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Nov 6, 2006

Dear all,
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Thanks
 

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i am now writing a web page which can allow users to edit the field(display in the gridview->gridview  source is from sqldatasource), there is a problem(it seems that i have followed all steps in the book):
when the i edit the field and click update, in the web site, i can see those changes. however, i cant see any change in database table.
i cant find  solution on this, could anyone help me to solve this problem? thx!

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Feb 3, 2007

Hello,
I have a SQL database with about 300 company names and corresponding phone numbers.  I would like to show a list of linkbuttons titled A-Z and when pressed, rebind the sqldatasource so that my GridView will only show company names that start with that letter.
I know there are some examples on codeproject.com, but they are a bit over my head...  besides, I don't mind writing a custom select statement for the OnClick of every linkbutton if that's what I have to do.  Problem is I haven't a clue how to write a select statement that will return items who's first letter matches my desired letter?
 Any idea?
 Thanks,
-Derek
 

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Feb 5, 2007

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May 8, 2007

Hi,
I've got a gridview that displays some (but not all) columns from a sql database table. One of the columns that is NOT displayed is the table's primary key column. I'm putting together this row updating sub based on an article I found on the 'Net. Here's the code I've added for the GridView's edit routine (based on the article):Protected Sub gvPersonnelType_RowEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs) Handles gvPersonnelType.RowEditing
gvPersonnelType.EditIndex = e.NewEditIndex
gvPersonnelTypeBindData()
End Sub

Protected Sub gvPersonnelType_RowCancellingEdit(ByVal sender As Object, ByVal e As GridViewCancelEditEventArgs)
gvPersonnelType.EditIndex = -1
gvPersonnelTypeBindData()
End Sub

Protected Sub gvPersonnelType_RowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs)
'Dim PersonnelTypeID As Integer'This is not displayed in the gridview, but is the primary key in the database
Dim LaborForceTypeID As Integer
Dim DefaultPayRate, DefaultPieceRate, Rebill As Decimal'These are money datatype in the database
Dim DefaultAdminCostPercent, MarkUp As Double 'These are float datatype in the database'Don't know if the following lines properly "capture" the values in the textboxes
LaborForceTypeID = Integer.Parse(gvPersonnelType.Rows(e.RowIndex).Cells(0).Text)
DefaultPayRate = CType(gvPersonnelType.Rows(e.RowIndex).Cells(1).Controls(0), TextBox).Text
DefaultPieceRate = CType(gvPersonnelType.Rows(e.RowIndex).Cells(2).Controls(0), TextBox).Text
DefaultAdminCostPercent = CType(gvPersonnelType.Rows(e.RowIndex).Cells(3).Controls(0), TextBox).Text
Rebill = CType(gvPersonnelType.Rows(e.RowIndex).Cells(4).Controls(0), TextBox).Text
MarkUp = CType(gvPersonnelType.Rows(e.RowIndex).Cells(5).Controls(0), TextBox).Text

Dim gvSqlConn = New SqlConnection("DATABASECONNECTION")

gvSqlConn.open()
Dim UpdatePersonnelTypeCmd As New SqlCommand("UPDATE rsrc_PersonnelType SET LaborForceTypeID = @LaborForceTypeID, " & _
"DefaultPayRate = @DefaultPayRate, DefaultPieceRate = @DefaultPieceRate, " & _
"DefaultAdminCostPercent = @DefaultAdminCostPercent, Rebill = @Rebill, Markup = @Markup", gvSqlConn)

'Sql doesn't know what row to update: NEED WHERE STATEMENT!!!

UpdatePersonnelTypeCmd.Parameters.Add(New SqlParameter("@LaborForceTypeID", LaborForceTypeID))
UpdatePersonnelTypeCmd.Parameters.Add(New SqlParameter("@DefaultPayRate", DefaultPayRate))
UpdatePersonnelTypeCmd.Parameters.Add(New SqlParameter("@DefaultPieceRate", DefaultPieceRate))
UpdatePersonnelTypeCmd.Parameters.Add(New SqlParameter("@DefaultAdminCostPercent", DefaultAdminCostPercent))
UpdatePersonnelTypeCmd.Parameters.Add(New SqlParameter("@Rebill", Rebill))
UpdatePersonnelTypeCmd.Parameters.Add(New SqlParameter("@Markup", MarkUp))

UpdatePersonnelTypeCmd.ExecuteNonQuery()
gvSqlConn.close()

gvPersonnelType.EditIndex = -1
gvPersonnelTypeBindData()

End Sub
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As for the GridView itself, it's populated from the code-behind as well (as you can see from the call to "gvPersonnelTypeBindData()") and the SELECT statement used to populate the gridview doesn't use the PersonnelTypeID column either.
I'd appreciate it if someone could point me in the right direction to get this RowUpdating sub working.
Thanks!

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