Same Exact Code Works In Vb.net But Not In C#

Feb 9, 2006

can any help me why the same exact code works in vb.net but not in C# . case is very simple

I have a table called MenuItems which has menu items and a table sizeandprice which has price for each menuitem based on the size. simple case of 1 to many relationship between menuitems table to sizeandprice table. I am trying to display in a gridview control couple of fields from menuitems table and have another template field in which i am display price and size field from the child table which is sizeand price. so basically this is how my code looks like


Page in vb works fine

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs)

If e.Row.RowType = DataControlRowType.DataRow Then

Dim ds As SqlDataSource = CType(e.Row.FindControl("SqlDataSource2"), SqlDataSource)

ds.SelectParameters("fkMenuItemID").DefaultValue = GridView1.DataKeys(e.Row.RowIndex).Value

End If

End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

<title>Untitled Page</title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:PPQ_DataConnectionString1 %>" SelectCommand="SELECT [MenuItemID], [MenuItemType], [ItemName] FROM [MenuItems]"></asp:SqlDataSource>

<br />

&nbsp;<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="MenuItemID"

DataSourceID="SqlDataSource1" OnRowDataBound="GridView1_RowDataBound">

<Columns>

<asp:BoundField DataField="MenuItemID" HeaderText="MenuItemID" InsertVisible="False"

ReadOnly="True" SortExpression="MenuItemID" />

<asp:BoundField DataField="MenuItemType" HeaderText="MenuItemType" SortExpression="MenuItemType" />

<asp:BoundField DataField="ItemName" HeaderText="ItemName" SortExpression="ItemName" />

<asp:TemplateField HeaderText="Size And Price">

<ItemTemplate>

<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:PPQ_DataConnectionString1 %>"

SelectCommand="SELECT [ItemSize], [ItemPrice] FROM [SizeAndPrice] WHERE ([fkMenuItemID] = @fkMenuItemID)">

<SelectParameters>

<asp:Parameter Name="fkMenuItemID" Type="Int32" />

</SelectParameters>

</asp:SqlDataSource>

<asp:Repeater ID="Repeater1" runat="server" DataSourceID="SqlDataSource2">

<ItemTemplate>

<%#Eval("ItemSize")%>: <%#Eval("ItemPrice", "$ {0:F2}")%><br />

</ItemTemplate>

</asp:Repeater>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>



</div>

</form>

</body>

</html>

 

if you would notice that in order populate my repeater with childrows i need to know the menuitemid from the parent row which i do in rowdatabound event however same code in C# does not render any values for my item price and size defined inside the repeater control. here is how the c# page looks like

 

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

if (e.Row.RowType == DataControlRowType.DataRow)

{

SqlDataSource source2 = e.Row.FindControl("SqlDataSource2") as SqlDataSource;

source2.SelectParameters["fkMenuItemID"].DefaultValue = GridView1.DataKeys[e.Row.RowIndex].Value as string;

}

}

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

<title>Untitled Page</title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:PPQ_DataConnectionString1 %>"

SelectCommand="SELECT [MenuItemID], [MenuItemType], [ItemName] FROM [MenuItems]">

</asp:SqlDataSource>



</div>

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="MenuItemID"

DataSourceID="SqlDataSource1" OnRowDataBound="GridView1_RowDataBound" >

<Columns>

<asp:BoundField DataField="MenuItemID" HeaderText="MenuItemID" InsertVisible="False"

ReadOnly="True" SortExpression="MenuItemID" />

<asp:BoundField DataField="MenuItemType" HeaderText="MenuItemType" SortExpression="MenuItemType" />

<asp:BoundField DataField="ItemName" HeaderText="ItemName" SortExpression="ItemName" />

<asp:TemplateField HeaderText="Size And Price">

<ItemTemplate>

<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:PPQ_DataConnectionString1 %>"

SelectCommand="SELECT [ItemSize], [ItemPrice] FROM [SizeAndPrice] WHERE ([fkMenuItemID] = @fkMenuItemID)">

<SelectParameters>

<asp:Parameter Name="fkMenuItemID" Type="Int32" />

</SelectParameters>

</asp:SqlDataSource>

<asp:Repeater ID="Repeater1" runat="server" DataSourceID="SqlDataSource2">

<ItemTemplate>

<%#Eval("ItemSize")%>: <%#Eval("ItemPrice", "$ {0:F2}")%><br />

</ItemTemplate>

</asp:Repeater>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

</form>

</body>

</html>

 

can anyone tell me what i am doing wrong?

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Hi,

Is there a better (more elegant) way to build the file name than the following code:


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events things
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marriage
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