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Data not display when klick swicth category

  Asked By: Arland    Date: Apr 03    Category: Asp.net    Views: 5547
  

i any problem in myscript, data not display when klick swicth kategori,
thereabouts where problem's my script
script :



<%@ Page Language="vb" %>
<%@ import Namespace="System.Data" %>
<%@ import Namespace="System.Data.SqlClient" %>
<script runat="server">

Sub Getkategori_Click(Sender As Object, E As EventArgs)

Dim DS As DataSet
Dim MyConnection As SqlConnection
Dim MyCommand As SqlDataAdapter


Dim SelectCommand As String = "select * from buku where kategori =
@kategori"

MyCommand = New SqlDataAdapter(SelectCommand, MyConnection)

MyCommand.SelectCommand.Parameters.Add(New SqlParameter("@kategori",
SqlDbType.NVarChar, 2))
MyCommand.SelectCommand.Parameters("@kategori").Value = Myselect.Value

DS = new DataSet()
MyCommand.Fill(DS, "buku")

MyDataGrid.DataSource=DS.Tables("buku").DefaultView
MyDataGrid.DataBind()
End Sub

</script>
<html>
<head>
</head>
<body style="FONT: 10pt verdana">
<form runat="server">
<h3><font face="Verdana">Buku Per Kategori</font>
</h3>
Select a Kategori:
<select id="MySelect" runat="server">
<option>Komik</option>
<option>Relaksasi</option>
<option>Sastra</option>
<option>Novel Lokal</option>
<option>Novel Import</option>
<option>Dunia Usaha</option>
<option>Kesehatan</option>
<option>Psikologi</option>
<option>Pendidikan</option>
</select>
<input type="submit" value="Kategori" runat="server"
onserverclick="getkategori_click" />
<p>
<ASP:DataGrid id="MyDataGrid" runat="server"
EnableViewkategori="false" HeaderStyle-BackColor="#6699ff" Font-Size="8pt"
Font-Name="Verdana" CellSpacing="0" CellPadding="3" ShowFooter="false"
BorderColor="black" BackColor="#ccccff" Width="700"></ASP:DataGrid>
</p>
</form>
</body>
</html>

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6 Answers Found

 
Answer #1    Answered By: Wilfred Young     Answered On: Apr 03

The DS object  is filled properly by Fill method ?

 
Answer #2    Answered By: William Bouchard     Answered On: Apr 03

Try:


<asp:DropDownList id="MySelect" runat="server" >
<asp:ListItem>Komik</asp:ListItem>
<asp:ListItem>Relaksasi</asp:ListItem>
<asp:ListItem>Sastra</asp:ListItem>
<asp:ListItem>Novel Lokal</asp:ListItem>
<asp:ListItem>Novel Import</asp:ListItem>
<asp:ListItem>Dunia Usaha</asp:ListItem>
<asp:ListItem>Kesehatan</asp:ListItem>
<asp:ListItem>Psikologi</asp:ListItem>
<asp:ListItem>Pendidikan</asp:ListItem>
</asp:DropDownList>
<asp:Button Text="Kategori" runat="server" onclick="getkategori_click"
/>

 
Answer #3    Answered By: Jean Bell     Answered On: Apr 03

The value of 2 of the parameter's width is correct ?
Try and put a breakpoint in script function and run in debug mode... to see
what's happening.
The IDE allows you to debug the scripts.

 
Answer #4    Answered By: Dominic Murphy     Answered On: Apr 03

I have a question How are you reading the value
of the selected ListItem? In your Getkategori_Click()
event handler you need to access the Request
object to get the value of the MySelect.SelectedItem.Text
or something similar to pass to @kategori and make your
query work.

 
Answer #5    Answered By: Jeffrey Washington     Answered On: Apr 03

if anybody knows answer for this question please send
it to quickly

1.How would you get ASP.NET running in Apache web
servers - why would you even do this?

2.what is meant by Line Item dimension?

 
Answer #6    Answered By: Landra Schmidt     Answered On: Apr 03

1. Yes you can
weblogs.asp.net/.../424852.aspx

2. www.dmreview.com/article_sub.cfm?articleId=7844

I see a lot of google in your future...

 
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