I have 2 repeaters that print menu headers and menu items - on inside the other.
They look like this:
<asp:Repeater ID="ParentRepeater" runat="server" OnItemDataBound="ParentRepeater_ItemDataBound">
<ItemTemplate>
<h2>
<%#DataBinder.Eval(Container.DataItem, "typenavn") %></h2>
<asp:HiddenField ID="HiddenField1" Value='<%# Eval("id") %>' runat="server" />
<asp:Repeater ID="ChildRepeater" runat="server">
<ItemTemplate>
<table>
<tr>
<td style="width: 200px">
<%#DataBinder.Eval(Container.DataItem, "productName") %>
</td>
<td style="width: 200px">
<%#DataBinder.Eval(Container.DataItem, "pris") %>
</td>
<td>
<asp:HiddenField ID="HiddenField2" runat="server" />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
</td>
</tr>
</table>
</ItemTemplate>
</asp:Repeater>
</ItemTemplate>
</asp:Repeater>
It's all good and fun and works.
But now I need to find the different textboxes - in the textboxes you can write how many of the different menu items you want.
I have tried many different things:
Control myControl1 = FindControl("MainContent_ParentRepeater_ChildRepeater_0_HB1_0");
And this:
foreach (RepeaterItem item in ParentRepeater.Items)
{
if (item.ItemType == ListItemType.Item)
{
TextBox txt = (TextBox)item.FindControl(("MainContent_ParentRepeater_ChildRepeater_0_HB1_0")) as TextBox;
// do something with "myTextBox.Text"
break;
}
}
And this:
foreach (RepeaterItem item1 in ParentRepeater.Items)
{
if (item1.ItemType == ListItemType.Item || item1.ItemType == ListItemType.AlternatingItem)
{
ChildRepeater = (Repeater)item1.FindControl("ChildRepeater");
foreach (RepeaterItem item2 in ChildRepeater.Items)
{
if (item2.ItemType == ListItemType.Item || item2.ItemType == ListItemType.AlternatingItem)
{
TextBox txt = (TextBox)item2.FindControl(("ct100$MainContent$ParentRepeater$ct100$ChildRepeater$ct100$HB1")) as TextBox; // MainContent_ParentRepeater_ChildRepeater_0_HB
}
}
}
break;
}
And none of it work. Can anybody out there help me?? How do I get hold of my textbox inside the repeater??
The FindControl function should take the ID of the server control, not the rendered client control. You should be able to do this:
var txt = item.FindControl("TextBox1") as TextBox;
if (txt != null)
{
// found it!
}
To adjust your code:
foreach (RepeaterItem item1 in ParentRepeater.Items)
{
if (item1.ItemType == ListItemType.Item || item1.ItemType == ListItemType.AlternatingItem)
{
ChildRepeater = (Repeater)item1.FindControl("ChildRepeater");
foreach (RepeaterItem item2 in ChildRepeater.Items)
{
if (item2.ItemType == ListItemType.Item || item2.ItemType == ListItemType.AlternatingItem)
{
TextBox txt = (TextBox)item2.FindControl(("TextBox1")) as TextBox;
}
}
}
}
First, you should use FindControl on the repeater you wish to locate a control within - for instance, ParentRepeater.FindControl("controlName") - as opposed to this.FindControl().
Secondly, you should use the ID of the control, not the Client ID - which is a different beast.
Related
<asp:Repeater ID="Repeater1" runat="server" DataSourceID="EntityDataSourceTeklifler">
<ItemTemplate>
<div class="panel panel-primary">
<div class="panel-body">
<strong>Teklif Kodu:</strong> <%#Eval("TeklifId") %><br />
<strong>Teklif Tarihi:</strong> <%#Eval("TeklifTarih") %><br />
<strong>Teklifi Hazırlayan:</strong> <%#Eval("Name") %> <%#Eval("Surname") %><br />
<strong>Firma Adı:</strong> <%#Eval("FirmaAdi") %><br />
<strong>Sipariş:</strong> <%#Eval("FUrunId") %><br />
<strong>Teklif Tutarı:</strong> <%#Eval("TeklifTutar") %><br />
</div>
</div>
</ItemTemplate>
</asp:Repeater>
As you can see I have a Repeater and it displays my data without a problem. I need to access TeklifIds in code-behind. I am going to make something like:
if(TeklifId == 1)
{
//do something
}
else if(TeklifId == 2)
{
//do something else
}
And to do this, I need to get all TeklifId while it is adding to the Repeater.
Ideally you should include the data withing some ASP.NET controls like Label, Textbox control within ItemTemplate tag because it is easy to work with them. But I am not sure why you are adding the normal html tags directly.
Anyways, to find the value you will have to find it within the ItemDataBound control of repeater control but for that you will have to make the strong tag a server control by adding runat="server" attrribute like this:-
<strong id="TeklifId" runat="server">Teklif Kodu:</strong> <%#Eval("TeklifId") %>
Then, add the ItemDataBound event in your repeatre control like this:-
<asp:Repeater ID="Repeater1" runat="server" OnItemCommand="Repeater1_ItemCommand"
Finally in the code behind you can find the value like this:-
protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.AlternatingItem ||
e.Item.ItemType == ListItemType.Item)
{
HtmlGenericControl TeklifId = e.Item.FindControl("TeklifId") as HtmlGenericControl;
string TeklifId = TeklifId.InnerText; //value here
}
}
Place TeklifId in a Label control so that you can use ID and FindControl to get the values like this:
<asp:Label ID="TeklifId" runat="server" Text='<%#Eval("TeklifId") %>'></asp:Label>
And then:
foreach (RepeaterItem item in Repeater1.Items)
{
var TeklifId = (Label)item.FindControl("TeklifId");
if (TeklifId == 1)
{
//do something
}
}
Repeater Code :
<td>
<span runat="server" id="lbBranchname" style="font-style:italic;"><%# Eval("branchname")%></span>
</td>
Code behind : rptBranch_ItemCommand
HtmlGenericControl lbBranchname = e.Item.FindControl("lbBranchname") as HtmlGenericControl;
BranchName = lbBranchname.InnerText;
I have this code for a blog which is nesting a repeater control within a datalist.
I'm trying to assign the alt tags of the repeater control images to be the title of the post coming through the datalist however, it will not let me though this because it has a different data source.
Any suggestions as to how I can do this?
Here's my code:
<asp:DataList runat="server" ID="DataList1" ItemStyle-CssClass="row1BackgroundBlock" OnItemDataBound="DataList1_ItemDataBound" >
<ItemTemplate>
<!-- <%#Eval("PostId")%> post -->
<div class="dateBox"><asp:Label ID="Label1" runat="server" ForeColor="#ffffff" Font-Bold="False" Text='<%# Eval("PublicationDate","{0:dd/MM/yyyy}") %>' CssClass="postmetadata"></asp:Label></div>
<div class="roundPanelStack">
<h2><asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# Engine2010.Blog.BlogLinksManager.GetFullPostsLinks((int)Eval("PostId"), (object)Eval("FURL")) %>'><%# Eval("Title") %></asp:HyperLink></h2>
<ul><li class="postBy">Posted in <%#Eval("CategoryName")%> by <%#Eval("Author")%></li><li class="last">{<%# Engine2010.Blog.PostComment.GetAllByPostId(int.Parse(Eval("PostId").ToString()), 766).Rows.Count.ToString()%> comments}</li></ul>
<div class="thumbWindow">
<div style="border:7px solid #fff;display:block;height:95px;left:1px;position:absolute;top:1px;width:95px;z-index:5;"></div>
<asp:Repeater ID="repImgs" runat="server">
<ItemTemplate>
<img class="thumb_view" src="/uploads/images/Blog/<%# Eval("Directory").ToString().Substring(Eval("Directory").ToString().LastIndexOf("\\")+1) %>/<%# Eval("Name") %>" alt="" border="0" width="143" height="143" />
</ItemTemplate>
</asp:Repeater>
<asp:PlaceHolder ID="PlaceHolder1" runat="server" Visible="false">
<img src="/includes/images/general/default.jpg" alt="Default" border="0" width="110" height="110" />
</asp:PlaceHolder>
</div>
<p>
<asp:Label ID="Label2" runat="server" Text='<%#CommonFunctions.Remove_HTML_Tags(Eval("Description").ToString()) %>' CssClass="entry"></asp:Label>
</p>
<div class="linksMore">
<asp:HyperLink ID="FullStoryLink" runat="server" NavigateUrl='<%# Engine2010.Blog.BlogLinksManager.GetFullPostsLinks((int)Eval("PostId"), (object)Eval("FURL")) %>' CssClass="fullstory">Read Full Post</asp:HyperLink><a class="spacer"> // </a><asp:HyperLink ID="CommentsLink" runat="server" NavigateUrl='<%# Engine2010.Blog.BlogLinksManager.GetFullPostsLinks((int)Eval("PostId"), (object)Eval("FURL")) + "#comment" %>' CssClass="comments">Comment</asp:HyperLink>
</div>
</div>
<!-- /first post -->
</ItemTemplate>
</asp:DataList>
Backend:
protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
Repeater repImages = (Repeater)e.Item.FindControl("repImgs"); // Child repeater with images for room
string amenText = ((DataRowView)e.Item.DataItem).Row.ItemArray[7].ToString();
DirectoryInfo folderBr = new DirectoryInfo(Server.MapPath("~/uploads/images/Blog/") + amenText);
// List<Engine2010.ImageObj> imageObjs = folderBr.GetImagesInPath();
if (folderBr.Exists)
{
repImages.DataSource = folderBr.GetFiles("thumb*.*"); // Bind room images to child repeater
repImages.DataBind();
if (repImages.Items.Count == 0)
{
PlaceHolder placeholder1 = (PlaceHolder)e.Item.FindControl("PlaceHolder1");
placeholder1.Visible = true;
}
}
else {
PlaceHolder placeholder1 = (PlaceHolder)e.Item.FindControl("PlaceHolder1");
placeholder1.Visible = true;
}
}
}
In the ItemDataBound event of your DataList1 after binding repImages repater control, iterate through each item by using RepeaterItem and then find your img control and assign title in alt tag like this -
protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
Repeater repImages = (Repeater)e.Item.FindControl("repImgs");
string amenText = ((DataRowView)e.Item.DataItem).Row.ItemArray[7].ToString();
DirectoryInfo folderBr = new DirectoryInfo(Server.MapPath("~/uploads/images/Blog/") + amenText);
if (folderBr.Exists)
{
repImages.DataSource = folderBr.GetFiles("thumb*.*"); // Bind room images to child repeater
repImages.DataBind();
if (repImages.Items.Count == 0)
{
PlaceHolder placeholder1 = (PlaceHolder)e.Item.FindControl("PlaceHolder1");
placeholder1.Visible = true;
}
// Iterate thru each item of your child repeate control.
foreach (RepeaterItem repeaterItem in repImages.Items)
{
if (repeaterItem.ItemType == ListItemType.Item ||
repeaterItem.ItemType == ListItemType.AlternatingItem)
{
((HtmlImage)(repeaterItem.FindControl("imgId"))).Alt = amenText; // Assume amenText is the title of your post
}
}
}
else
{
PlaceHolder placeholder1 = (PlaceHolder)e.Item.FindControl("PlaceHolder1");
placeholder1.Visible = true;
}
}
}
good luck...
im trying to change a value inside my repeater : (via itemdatabound event)
if the year is empty - set value blabla
my repeater :
<ItemTemplate>
<tr >
<td >
<%#Eval("year") %>
</td>
my c# code :
void RPT_Bordereaux_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
if (string.IsNullOrEmpty(((DataRowView)e.Item.DataItem)["year"].ToString()))
{
(((DataRowView)e.Item.DataItem)["year"]) = "blabla"; // ???????
}
}
it does change but not displayed in repeater ( the old value is displayed).
one solution is to add a server control or literal ( runat server) in the itemTemplate - and to "findControl" in server - and change its value.
other solution is by jQuery - to search the empty last TD.
but - my question :
is there any other server side solution ( ) ?
you can try something like this :
Repeater in .aspx:
<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<table>
<tr>
<td> <%# GetText(Container.DataItem) %></td>
</tr>
</table>
</ItemTemplate>
</asp:Repeater>
.cs :
protected static string GetText(object dataItem)
{
string year = Convert.ToString(DataBinder.Eval(dataItem, "year"));
if (!string.IsNullOrEmpty(year))
{
return year;
}
else
{
return "blahblah";
}
}
IN GetText Method you can able to check by string that Empty or not than return string.
You could try to use the itemcreated event which occurs before the control is bound and not after the control is bound. Example in first link:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.repeater.itemcreated.aspx
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.repeater_events.aspx
ItemDataBound Occurs after an item in the Repeater control is data-bound but before it is rendered on the page.
HTML FILE
<asp:Repeater ID="RPT_Bordereaux" runat="server">
<ItemTemplate>
<table>
<tr>
<td> <%# GetValue(Container.DataItem) %></td>
</tr>
</table>
</ItemTemplate>
</asp:Repeater>
.CS CODE
protected void RPT_Bordereaux_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
}
}
protected static string GetValue(object dataItem)
{
string year = Convert.ToString(DataBinder.Eval(dataItem, "year"));
if (!string.IsNullOrEmpty(year))
{
return Convert.ToString(year);
}
else
{
return "blahbla";
}
}
This should work
I used repeater in asp.net. My problem is don't know how to hide a fields in repeater. There is a regular price and now price if regular price is equal to zero it will hide the fields and if not it will show the value of the regular price. i hope you can help on this.
here my code in asp:
<a href="<%=Utility.GetSiteRoot() %>/BookInfo.aspx?SKU=<%# Utility.SKUMask(Eval("lb_sku").ToString()) %>">
<img width="150px" src='<%# Eval("lb_picturepath")%>'>
</td>
<td valign="top">
<asp:Label ID="lb_titleLabel" runat="server" CssClass="center-head" Text='<%# Eval("lb_title") %>' />
<p><asp:Label ID="lb_descriptionLabel" runat="server" Text='<%# Eval("lb_description") %>' /></p>
<div class="price"><%# "Price: " + decimal.Round((decimal)Eval("lb_sellingprice"),2)%></div>
</td>
</tr>
<tr>
<td></td>
<td>
<a class="addtocart" href="<%=Utility.GetSiteRoot() %>/AddToCart.aspx?SKU=<%# Utility.SKUMask(Eval("lb_sku").ToString()) %>" >Add To Cart</a>
<a href="<%=Utility.GetSiteRoot() %>/BookInfo.aspx?SKU=<%# Utility.SKUMask(Eval("lb_sku").ToString()) %>" class="readmore">
View Details
</a></td>
thanks!
You would need to handle the OnItemDataBound event, and then change the visibility of the control. An example of this is shown below:
ASPX Page
<asp:Repeater ID="MyRepeater" OnItemDataBound="MyRepeater_OnItemDataBound" runat="server">
<ItemTemplate>
<asp:Label ID="RegularPriceLabel" runat="server" />
<br/>
<asp:Label ID="BuyNowPriceLabel" runat="server" />
</ItemTemplate>
</asp:Repeater>
Code Behind
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
MyRepeater.DataSource = GetDataSource();
MyRepeater.DataBind();
}
}
protected void MyRepeater_OnItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
// This will be your data object
MyEntity o = (MyEntity) e.Item.DataItem;
// Get the labels
Label RegularPriceLabel = (Label) e.Item.FindControl("RegularPriceLabel");
Label BuyNowPriceLabel = (Label) e.Item.FindControl("BuyNowPriceLabel");
// Only show regular price if it is set
RegularPriceLabel.Visible = (o.RegularPrice > 0);
// Populate labels
RegularPriceLabel.Text = o.RegularPrice.ToString();
BuyNowPriceLabel.Text = o.BuyNowPrice.ToString();
}
}
I would take a look at the ItemDataBound event of the Repeater. It will fire for every item in the repeater and allow you to do any code-behind (like hiding labels) more easily.
Edit: For your specific example, since you are formatting the price as well, it may be easier to just call a custom method to to render the price, like so:
ASPX:
<%#RenderPrice((decimal)Eval("lb_sellingprice"))%>
Method:
protected string RenderPrice(decimal price) {
if (price > 0) {
return "Price: $" + decimal.Round(price);
} else {
return string.Empty;
}
}
It's quick-and-dirty but it works.
I know how to use a simple If statement wrapped in the <%# tags to hide something, but I don't know how to do it in a repeater when I need to access Container.DataItem, as in I need the dataItem currently being 'repeated'
eg
if (CurrentValidationMessage.Link != "")
{
show a hyperlink
}
Markup:
<asp:Repeater ID="repValidationResults" runat="server">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<a href='<%# ((MttImportValidationMessage)Container.DataItem).EditLink %>'> Link to erroneous Milestone </a>
<%# ((MttImportValidationMessage)Container.DataItem).Message %>
<br />
</ItemTemplate>
</asp:Repeater>
It might be more maintainable if you just tagged the controls in the repeater with id's and runat='server' and reference the DataItem in the ItemDataBound event by using e.Item.DataItem.
Then use e.Item.FindControl to reference your controls in the ItemTemplate and perform your logic.
protected void repeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.Item)
{
Domain.Employee employee = (Domain.Employee)e.Item.DataItem;
Control myControl = (Control)e.Item.FindControl("controlID");
//Perform logic
}
}
use ItemDataBound Event with repeater, and make the "a" tag with a runat="server" property and ID
protected void repValidationResults_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
RepeaterItem item = e.Item;
if (item.ItemType == ListItemType.AlternatingItem || item.ItemType == ListItemType.Item)
{
HyperLink link = (HyperLink) item.FindControl("link");
//Do all your logic here :)
}
}
MarkUp:
<asp:Repeater ID="repValidationResults" runat="server">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<a runat="server" ID="link"> Link to erroneous Milestone </a>
<%# ((MttImportValidationMessage)Container.DataItem).Message %>
<br />
</ItemTemplate>
</asp:Repeater>