This my data list:
<asp:DataList ID="DataList1" runat="server" DataSourceID="SqlDataSource1"
RepeatLayout="Flow">
<ItemTemplate>
Titre:
<asp:Label ID="TitreLabel" runat="server" Text='<%# Eval("Titre") %>' />
<br />
Description:
<asp:Label ID="DescriptionLabel" runat="server"
Text='<%# Eval("Description") %>' />
<br />
<asp:Image ID="Image1" runat="server"
ImageUrl='<%# Eval("ID", "Handler.ashx?ID={0}") %>' Width="200" Height="200"/>
<br />
comments:
<asp:Label ID="commentsLabel" runat="server" Text='<%# Eval("comments") %>' />
<br />
Ajouter commentaire
<asp:button ID="btnAjouter" runat="server" Text="Ajouter" />
<br/>
<br/>
</ItemTemplate>
</asp:DataList>
In the Vb.aspx code I create a method:
public Sub updateComments()
.......
End Sub
And I want to add an event to my DataList button and excute the method.
I don't know how to do it correctly.
This is in Vb.net.
Thanks
Frank
You just need to add a CommandName to your button and handle the DataList's ItemCommand.
For example(in ItemTemplate)
<asp:button ID="btnAjouter" CommandName="Ajouter" runat="server" Text="Ajouter" />
In Codebehind:
Sub Item_Command(sender As Object, e As DataListCommandEventArgs)Handles DataList1.ItemCommand
If e.CommandName = "Ajouter"
' do something '
End If
End Sub
Related
Hi I'm having issues with my Website. I have a button which on it's onclick function i have a SQL function that selects certain data from a table in my database.
The information i get from the database is what i want my DataList source to be. But when i do a Databind, nothing happens, the page is blank.
I don't know if the problem is with my SQL Select Statement, I have put breakpoints just about everywhere but no joy.
This is my code below:
<asp:DataList ID="DataList1" runat="server" Visible ="false">
<ItemTemplate>
<asp:Label ID="TitleLabel" runat="server" Text='<%# Eval("Title") %>' />
<br />
<asp:Label ID="YearLabel" runat="server" Text='<%# Eval("Year") %>' />
<br />
<asp:Label ID="GenreLabel" runat="server" Text='<%# Eval("Genre") %>' />
<br />
<asp:Label ID="StarringLabel" runat="server"
Text='<%# Eval("Starring") %>' />
<br />
<asp:Label ID="RuntimeLabel" runat="server"
Text='<%# Eval("Runtime") %>' />
<br />
<asp:Label ID="DirectorLabel" runat="server"
Text='<%# Eval("Director") %>' />
<br />
<asp:Label ID="ProductionLabel" runat="server"
Text='<%# Eval("Production") %>' />
<br />
<asp:Label ID="CountryLabel" runat="server"
Text='<%# Eval("Country") %>' />
<br />
<asp:Label ID="LanguageLabel" runat="server"
Text='<%# Eval("Language") %>' />
<br />
<asp:Label ID="PlotLabel" runat="server" Text='<%# Eval("Plot") %>' />
<br />
<asp:Label ID="ReviewLabel" runat="server"
Text='<%# Eval("Review") %>' />
<br />
<asp:Label ID="RatingLabel" runat="server"
Text='<%# Eval("Rating") %>' />
<br />
<asp:Label ID="ItemLabel" runat="server" Text='<%# Eval("Item") %>' />
<br />
<br />
</ItemTemplate>
</asp:DataList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ConnectionStrings:
MetaCriticReviewConnectionString1 %>"
SelectCommand="SELECT [Title], [Year], [Genre], [Starring],
[Runtime], [Director], [Production], [Country],
[Language], [Plot],[Review], [Rating], [Item] FROM [Movie]">
</asp:SqlDataSource>
Code Behind:
public partial class TestPage : System.Web.UI.Page
{
databaseCode db = new databaseCode();
string lookupTitle;
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Homelink_Click(object sender, EventArgs e)
{
}
protected void readmoreAvengers_Click(object sender, EventArgs e)
{
lookupTitle = "SELECT * FROM Movie WHERE [Item] ='" + 5 + "'";
SqlDataReader usersData = db.SQLDataReaderLookup(lookupTitle);
DataList1.DataSource = usersData;
DataList1.DataBind();
DataList1.Visible = true;
}
i use imagebutton in datalist and set codeexpression :Eval("PictureUrl", "ProductImages\thumb_{0}") and runtime display submitquery.
<asp:DataList ID="DataList1" runat="server" DataKeyField="pid"
DataSourceID="SqlDataSource1">
<ItemTemplate>
pname:
<asp:Label ID="pnameLabel" runat="server" Text='<%# Eval("pname") %>' />
<br />
pprice:
<asp:Label ID="ppriceLabel" runat="server" Text='<%# Eval("pprice") %>' />
<br />
publisher:
<asp:Label ID="publisherLabel" runat="server" Text='<%# Eval("publisher") %>' />
<br />
writer:
<asp:Label ID="writerLabel" runat="server" Text='<%# Eval("writer") %>' />
<br />
<asp:ImageButton ID="ImageButton7" runat="server"
ImageUrl='<%# Eval("PictureUrl", "ProductImages\thumb_{0}") %>' />
<br />
</ItemTemplate>
</asp:DataList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:dbpath %>"
SelectCommand="SELECT [pname], [pprice], [PictureUrl], [gid], [storeid], [publisher], [writer], [pid] FROM [tblproduct]">
</asp:SqlDataSource>
output one record:
pname:
<span id="ContentPlaceHolder1_DataList1_pnameLabel_0">تکنیک عکاسی</span>
<br />
pprice:
<span id="ContentPlaceHolder1_DataList1_ppriceLabel_0">125000 </span>
<br />
publisher:
<span id="ContentPlaceHolder1_DataList1_publisherLabel_0">اسرار دانش</span>
<br />
writer:
<span id="ContentPlaceHolder1_DataList1_writerLabel_0">نصرالله کسرائیان</span>
<br />
<input type="image" name="ctl00$ContentPlaceHolder1$DataList1$ctl00$ImageButton7" id="ContentPlaceHolder1_DataList1_ImageButton7_0" src="ProductImages%09humb_~/image/tecnikakasi.jpg" />
You got the correct HTML rendered
<asp:ImageButton ID="ImageButton7" runat="server"
ImageUrl='<%# Eval("PictureUrl", "ProductImages\thumb_{0}") %>' />
will produce input tag with type=image
<input type="image" name="ctl00$ContentPlaceHolder1$DataList1$ctl00$ImageButton7" id="ContentPlaceHolder1_DataList1_ImageButton7_0" src="ProductImages%09humb_~/image/tecnikakasi.jpg" />
The problem is ProductImages%09humb_~/image/tecnikakasi.jpg not exists. It may be wrong.
Check the relative path rendered.
Try
ImageUrl='<%# Eval("PictureUrl", "~/ProductImages/thumb_{0}") %>'
It is displaying "SubmitQuery" because your image is not being loaded. If your writer alternate text, then alternate text will be displayed.
You can view source of the generated html and check the path of the image and try to correct it for resolving this problem.
ImageUrl='<%# Eval("PictureUrl", "{0}") %>'
I have a standard button which should call a method but it just refuses to work and I can't figure out why.
ASP code:
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button
ID="UploadButton" runat="server" onclick="UploadButton_Click" Text="Change Logo" />
Code behind:
protected void UploadButton_Click(object sender, EventArgs e)
{
PasswordLabel.Visible = true;
PasswordLabel.Text = "TEST Before";
Image_Inserting(this);
PasswordLabel.Text = "TEST After";
}
I just added the textbox methods to test it but it doesn't seem to be posting back (even when I remove Image_Inserting call). All other buttons work fine so I don't know why this one won't work.
EDIT: Whole page- Button code towards the bottom
<%# Page Title="" Language="C#" MasterPageFile="~/Standardmaster.Master" AutoEventWireup="true" CodeBehind="VendorAccount.aspx.cs" Inherits="PetShopParadise.Vendor_Pages.VendorAccount" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<style type="text/css">
.style10
{
color: #FF0000;
}
</style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="mainContent" runat="server">
<h2>Account Details</h2>
<div id="RegistrationDiv">
<asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1">
<EditItemTemplate>
Name:
<asp:TextBox ID="NameTextBox" runat="server" Text='<%# Bind("Name") %>' />
<br />
Address:
<asp:TextBox ID="AddressTextBox" runat="server" Text='<%# Bind("Address") %>' />
<br />
Phone_Number:
<asp:TextBox ID="Phone_NumberTextBox" runat="server"
Text='<%# Bind("Phone_Number") %>' />
<br />
<asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True"
CommandName="Update" Text="Update" />
<asp:LinkButton ID="UpdateCancelButton" runat="server"
CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</EditItemTemplate>
<InsertItemTemplate>
Name:
<asp:TextBox ID="NameTextBox" runat="server" Text='<%# Bind("Name") %>' />
<br />
Address:
<asp:TextBox ID="AddressTextBox" runat="server" Text='<%# Bind("Address") %>' />
<br />
Phone_Number:
<asp:TextBox ID="Phone_NumberTextBox" runat="server"
Text='<%# Bind("Phone_Number") %>' />
<br />
<asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True"
CommandName="Insert" Text="Insert" />
<asp:LinkButton ID="InsertCancelButton" runat="server"
CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</InsertItemTemplate>
<ItemTemplate>
Name:
<asp:Label ID="NameLabel" runat="server" Text='<%# Bind("Name") %>' />
<br />
Address:
<asp:Label ID="AddressLabel" runat="server" Text='<%# Bind("Address") %>' />
<br />
Phone Number:
<asp:Label ID="Phone_NumberLabel" runat="server"
Text='<%# Bind("Phone_Number") %>' />
<br />
<asp:Button ID="Button3" runat="server" Text="Edit Details" CommandName="Edit" />
<br />
</ItemTemplate>
</asp:FormView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:PetShopParadiseConnectionString %>"
SelectCommand="SELECT [Name], [Address], [Phone_Number] FROM [Vendors] WHERE ([VendorID] = #VendorID)">
<SelectParameters>
<asp:SessionParameter Name="VendorID" SessionField="ID" Type="Decimal" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:Table ID="Table1" runat="server" style="text-align:left;">
<asp:TableRow ID="TableRow4" runat="server">
<asp:TableCell ID="TableCell7" runat="server">Password</asp:TableCell><asp:TableCell ID="TableCell8" runat="server">
<asp:TextBox ID="PasswordBox" TextMode="Password" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator
id="RequiredFieldValidator5"
runat="server"
ControlToValidate="PasswordBox"
Display="None"
Forecolor="Red"
ErrorMessage="Please enter a password." />
</asp:TableCell></asp:TableRow><asp:TableRow ID="TableRow5" runat="server">
<asp:TableCell ID="TableCell9" runat="server">Re-Enter Password</asp:TableCell><asp:TableCell ID="TableCell10" runat="server">
<asp:TextBox ID="PasswordCheckBox" TextMode="Password" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator
id="RequiredFieldValidator6"
runat="server"
ControlToValidate="PasswordCheckBox"
Display="None"
Forecolor="Red"
ErrorMessage="Please re-enter your password." />
</asp:TableCell></asp:TableRow></asp:Table><asp:Label
ID="PasswordLabel" runat="server" Text="Password" CssClass="style10"></asp:Label><br />
<asp:Button ID="PasswordButton"
runat="server" Text="Update Password" onclick="PasswordButton_Click" /><br />
<asp:SqlDataSource
ID="SqlDataSource2" runat="server"
ConnectionString="<%$ ConnectionStrings:PetShopParadiseConnectionString %>"
onselecting="SqlDataSource2_Selecting" SelectCommand="SELECT * FROM Vendors"
UpdateCommand="UPDATE [Vendors] SET [Password]=#passwordhash WHERE ([VendorID] = #VendorID)" OnUpdating="Parameters_Updating">
<UpdateParameters>
<asp:Parameter Name="Password" />
<asp:SessionParameter name="VendorID" sessionfield="ID" />
</UpdateParameters>
</asp:SqlDataSource>
<br /><asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button
ID="UploadButton" runat="server" onclick="UploadButton_Click" Text="Change Logo" /></div></asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="bannerContent" runat="server">
</asp:Content>
My guess is that it is causing other (possibly hidden) validation to run. Make sure to set CausesValidation to false.
quote :
*I just added the textbox methods *
I guess our trying to update a Password textBox which you can't.
only by :
PasswordLabel .Attributes["value"] = "aaa";
i have a datalist and a datapager but when i run my program it have error.
Control 'DataList1' does not implement IPageableItemContainer.
what is problem?
<asp:DataList ID="DataList1" runat="server" DataKeyField="id"
DataSourceID="SqlDataSource1">
<ItemTemplate>
id:
<asp:Label ID="idLabel" runat="server" Text='<%# Eval("id") %>' />
<br />
name:
<asp:Label ID="nameLabel" runat="server" Text='<%# Eval("name") %>' />
<br />
tedad:
<asp:Label ID="tedadLabel" runat="server" Text='<%# Eval("tedad") %>' />
<br />
group_id:
<asp:Label ID="group_idLabel" runat="server" Text='<%# Eval("group_id") %>' />
<br />
VDate:
<asp:Label ID="VDateLabel" runat="server" Text='<%# Eval("VDate") %>' />
<br />
KDate:
<asp:Label ID="KDateLabel" runat="server" Text='<%# Eval("KDate") %>' />
<br />
gheimat:
<asp:Label ID="gheimatLabel" runat="server" Text='<%# Eval("gheimat") %>' />
<br />
details:
<asp:Label ID="detailsLabel" runat="server" Text='<%# Eval("details") %>' />
<br />
imgae:
<asp:Label ID="imgaeLabel" runat="server" Text='<%# Eval("imgae") %>' />
<br />
"
SelectCommand="SELECT * FROM [Tbl_Kala_Group_No]">
<asp:DataPager ID="DataPager1" runat="server" PagedControlID = "DataList1" PageSize = "4" QueryStringField = "page" >
<Fields>
<asp:NextPreviousPagerField ButtonType="Button" ShowFirstPageButton="True"
ShowLastPageButton="True" />
</Fields>
</asp:DataPager>
Datapager control does not support for DataList. it works with ListView.
so, Paging for DataList, you have create paging dynamically.
Just give in google : paging for Datalist, you will find lots of resource. Thank you.
<asp:ListView ID="ListView1" runat="server" DataSourceID="SqlDataSource1"
DataKeyNames="OfferID" GroupItemCount="2" >
<LayoutTemplate>
<table runat="server">
<tr runat="server">
<td runat="server">
<table ID="groupPlaceholderContainer" runat="server" border="0" style="">
<tr ID="groupPlaceholder" runat="server">
</tr>
</table>
</td>
</tr>
<tr runat="server">
<td runat="server" style="">
</td>
</tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<td runat="server" style="">
<div id="wrapper">
<div id="ResImage">
<div id="slideshow">
<asp:Image ID="Image1" runat="server" ImageUrl='<%# Eval ("Image1") %>' Width="250px" Height="190px" CssClass="active" />
<asp:Image ID="Image5" runat="server" ImageUrl='<%# Eval ("Image2") %>' Width="250px" Height="190px" />
<asp:Image ID="Image4" runat="server" ImageUrl='<%# Eval ("Image3") %>' Width="250px" Height="190px" />
</div>
</div>
<div id="ResDesc">
<asp:Label ID="lblDesc" runat="server" Width="290px" Height="190px" BackColor="White" Text='<%# Eval("Offer") %>'></asp:Label>
</div>
<div id="ResPrice1">
<asp:Label ID="lblValue" runat="server" Text="Value" CssClass="ResValue"></asp:Label>
<asp:Label ID="lblDiscount" runat="server" Text="Discount" CssClass="ResDiscount"></asp:Label>
<asp:Label ID="lblYouPay" runat="server" Text="You Pay" CssClass="ResYouPay"></asp:Label>
<div id="ResPrice2">
<asp:Label ID="lblValueAmt" runat="server" Text='<%# Eval("Value") %>' CssClass="ResValueAmt"></asp:Label>
<asp:Label ID="lblDiscountAmt" runat="server" Text='<%# Eval("Discount") %>' CssClass="ResDiscountAmt"></asp:Label>
<asp:Label ID="lblYouPayAmt" runat="server" Text='<%# Eval("YouPay") %>' CssClass="ResYouPayAmt"></asp:Label>
</div>
<asp:Label ID="lblRestaurantName" runat="server" Text='<%# Eval("RestaurantName") %>'></asp:Label><br />
<asp:LinkButton ID="lnkGetCoupon" runat="server">Get Discount Coupon</asp:LinkButton>
</div>
<div id="HowItWorks">
<asp:Label ID="lblHowItWorks" runat="server" Text="How It Works?" Font-Bold="True" Font-Size="Small" ForeColor="Red"></asp:Label>
<ul>
<li><asp:Label ID="Label3" runat="server" Text="1.Click on the 'Get Discount Coupon' button" Font-Size="10px"></asp:Label></li>
<li><asp:Label ID="Label4" runat="server" Text="2.Get a print of your Voucher and carry it during your visit to the outlet." Font-Size="10px"></asp:Label></li>
<li><asp:Label ID="Label5" runat="server" Text="3.Show your Voucher and pay the amount directly to the merchant. " Font-Size="10px"></asp:Label></li>
</ul>
</div>
<asp:Label ID="OfferID" runat="server" Text='<%# Eval("OfferID") %>' Visible="false"></asp:Label>
</div>
</td>
</ItemTemplate>
How to find the label control with the id=OfferID...how to use findcontrol here??
i want to find the OfferID of the row on which i click...i have a linkbutton lnkGetCoupon..when i click on the link button...i want to pass the OfferID in the query string to the next page.
i am a new user so they do not let me post answer to my own question
heres the answer...
i added CommandArgument='<%# Eval("OfferID") %> to the link button.
<asp:LinkButton ID="lnkGetCoupon" CommandArgument='<%# Eval("OfferID") %>' runat="server">Get Discount Coupon</asp:LinkButton>
and used the ListView1_ItemCommand
Protected Sub ListView1_ItemCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ListViewCommandEventArgs) Handles ListView1.ItemCommand
Dim offer As String
offer = e.CommandArgument.ToString()
Dim url As String = "~/RestaurantDedicatedPage.aspx?offerID=" + offer
Response.Redirect(url, True)
End Sub
You don't need the Label at all, you can get the OfferID from the DataKeys collection.
First, add a CommandName to your LinkButton:
<asp:LinkButton ID="lnkGetCoupon" runat="server" CommandName="GetCoupon">Get Discount Coupon</asp:LinkButton>
Then use it in the ItemCommand handler:
protected void ListView1_ItemCommand(object sender, ListViewCommandEventArgs e)
{
if (e.CommandName == "GetCoupon")
{
ListViewDataItem item = (ListViewDataItem)e.Item;
int index = item.DataItemIndex;
string offerID = ((ListView)sender).DataKeys[index]["OfferID"].ToString();
Response.Redirect("yourUrl" + offerID);
}
}
Attach to the ListView.ItemCommand event and within that event you can search on the Item in the ListViewCommandEventArgs to find the control you need to alter.
Update your ListView in your ASPX to hook up the ItemCommand event:
<asp:ListView ... OnItemDataBound="ListView1_ItemCommand">
<ItemTemplate>
...
<asp:LinkButton id="lnkGetCoupon" CommandName="View" CommandArgument="<%# Eval("OfferID") %>" />
...
</ItemTemplate>
</asp:ListView>
The ItemCommand event will be fired when a Button or LinkButton (or some other button-esque control) is clicked. To handle this event, add the following
code to your *.aspx.cs (code-behind) file:
protected void ListView1_ItemDataBound(object sender, ListViewCommandEventArgs e)
{
//Check if the lnkGetCoupon button was clicked.
if (string.Equals("View", e.CommandName))
{
//Get the offerID from the CommandArgument.
int offerID = int.Parse(e.CommandArgument);
//Perform your logic using the offerID
}
}