Forms Data Controls :: Access Datalist Control From Code Behind?
Jul 22, 2010
I want to access my checkbox in code behind. I have my checkbox in my aspx file like this:
[Code]....
And i'm trying to set the checkbox visible=false like this but it's not working. Error message: Object reference not set to an instance of an object.
[Code]....
This is just one thing i want to do with my controls in my datalist, so i don't want to in my aspx file like this:
<asp:CheckBox ID="CheckBox1" runat="server" Visible='<%# if(Eval("isFolder")="1","false","true") %>' />
Because i have quite a lot of things i would like to do in the code behind when i'm getting my files..
Is it possible somehow to achieve this without having to put servercode in my aspx file?
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Jun 29, 2010
How do I access a DataList Control on PageLoad?
This is what I have and it is not working DLSection1.Parent.Controls("StartDate")
I need to access my DataList 'startDate' field from the PageLoad Event - How do I go about doing this?
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Nov 15, 2010
The problem is that i have a search page. Access Database holding the information. I have a Access Datasource on the page with a Datalist to show the data. I need to find a way on setting it up to says "Sorry no results found" when the is no results. i am unsure on how to do this though.
Below is my datasource and datalist
[Code]....
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May 7, 2015
I need to create a DataList from code behind.
The structure of that DataList shold be as follows:
<asp:DataList ID="DataList1" runat="server" RepeatDirection="Horizontal" RepeatColumns="5" CellPadding="6">
<ItemTemplate>
<table> <tr><td>
<asp:Label ID="lblName" runat="server" ForeColor="Red" Text='<%#Eval("ID") %>'></asp:Label>
</td></tr> </table>
</ItemTemplate>
</asp:DataList>
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Jan 18, 2012
I have placed a label in footer template of DataList Control.. And i want to access it a DataLists UpdateCommand..
if (e.Item.ItemType == ListItemType.Footer)
{
lbl = (Label)e.Item.FindControl("lblmessage");
}
But it did not work....
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Apr 23, 2012
In Datalist Item Template Another Datalist And Child Datalist How can we access link button inside chile datalist when click in child link button
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Jul 13, 2010
I have a DataList called Books on my form. If the Genre is Mystery, I want the TableHeaderCell to be a different color. The BackColor is set by default to: #66CCFF.
How do I access this control in the code behind? I want to be able to say:
[Code].....
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Mar 18, 2011
I try to make button inside datalist to be invisble based on a column value from database. I am able to read the column data but i cant find solution to make the button invisible. Below is my code behind:-
[Code]....
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Dec 3, 2010
i am developing an ASP.NET website, i have a datalist that contains an item template with hyperlink in it, i want to access the hyperlink clicked i tried "SelectedIndexChanged" event, i don't know what to do. here is the code <asp:DataList ID="DataList1" runat="server" DataKeyField="album_id"
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Jun 23, 2010
I am writing a system that is input intensive, and the used need to be able to use without touching the mouse. I am trapping the enter key and defaulting to click an "Enter" button that I have on the screen. In the EnterButton_Click event, I am using a "menu option" to determine which DataList item they want.
All of that is working great, except reading back the URL from the DataList Item, which I need for my repsonse.redirect to call the next screen.
[Code]....
I am inches away from pulling this off.Entire code is below. The actual datatable/datasource will come from a file later, I just mocked up some links for this example.
[Code]....
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Feb 2, 2010
I can't seem to access a label that is outside the DataList. I wish to add the data in the label into a database, aswell as data that is inside the datalist (this is already working though). My SQL-query with only the specific label looks like this at the moment:
[Code]....
The data is added to the database when pressing a button inside the datalist (using onItemCommand). If I write UserIDLabel.Text the regular way it doesn't work either. The label is in the MasterPage, while the datalist is in a .aspx-page. If it is possible to somehow access the data that is in this label and add it to the database I would be ever grateful. Or is it somehow possible to add data that is in a Session and add it to the database?
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Mar 17, 2010
I add a table or div inside to datalist itemtemplateı want to change dynamicly table or div id's value from codebehind databound event. ex : I want to add itemindex value to table or div id which is inside itemtemplate
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Apr 16, 2010
i hav created different rolegroups such as candidate,content developer etc... i hav put datalist views in different rolegroups i want to access those datalist view's controls in codebehind how do i do it? my code behind is in vb.....the code .aspx :
[Code]....
code behind is wat i want for OnClick="TestCheck" so tat whn i click on tat link i cn verify whether candidate has given the test or not...rght nw i cnt access datalist1 in code behind..
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Sep 10, 2010
I've got a label in the item template tag of the datalist control. The label is bound to an integer column in the data source.
What I want to achieve is to retrieve the number from that label and change its text according to what number is retrieved.
i.e. if number retrieved = 1 then
lbl.text = "SomeText"
My problem is that I don't know how to code that label as it is found in the <ItemTemplate> of the datalist and intellisense cannot identify the label.
Is it possible for me to code that label using code behind? or is there any other way to do this?
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Jan 14, 2010
I'm currently running with this.
[Code]....
Works find on initial page load, but gives me "Object variable or With block variable not set."
on this like "ColourHex = e.Item.DataItem("ColourHex")" on postback?
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May 7, 2010
I use a datalist to display one record from a database
one field contains html tags
I bind it to a label in the itemtamplate
[Code]....
but i wont work , the formated text do not appear
It works with a detailsview , but it wont work with a datalist
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Jan 6, 2011
i have the code to test:
Cmd = New OleDbCommand("update TabEntrevistado set EntrevistadoConcluido=true where EntrevistadoCodigo =8", Con)
Now, I need something like this:
Cmd = New OleDbCommand("update TabEntrevistado set EntrevistadoConcluido=true where EntrevistadoCodigo =" + LblInfoEditar.text, Con)
The problem:
The LblInfoEditar is outside the datalist so it works fine. (note: in this label I put a value like the 8)
But I have this label to test because I need to access a label inside datalist:
<asp:Label Visible="false" runat="server" ID="LblNumEntrevista" Text='<%# Container.DataItem("EntrevistadoCodigo") %>'></asp:Label>
The problem is: in this line I've to put something to access this LblNumEntrevista HOW?
I try:
Cmd = New OleDbCommand("update TabEntrevistado set EntrevistadoConcluido=true where EntrevistadoCodigo =" +
ListaPendentes.LblInfoEditar.text, Con)
But of course I don't work because I can't do this...
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Oct 7, 2010
How can I access the datalist at run time to create, a table layout but with the first cell having a rowspan of 2? Below is the HTML source code to demonstrate.
<table border="1">
<tr>
<td rowspan="2">1</td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td>5</td>
<td>6</td>
</tr>
</tr>
</table>
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Dec 6, 2010
Finding DropDownList Control Within DataList Control?
[Code]....
[Code]....
<asp:LinkButton ID="AddBtn" runat="server">Add Committee</asp:LinkButton>
</FooterTemplate>
</asp:DataList>
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May 20, 2010
The Datalist is being databound via an ObjectDataSource and everything here works fine. I have a label which I've added to my datalist and it's unbound to anything. Depending on the message information, I want this unbound label to display a certain phrase but it has to be next to a bound label. But if I try to change the text of the label in the code-behind, VS2k8 reports that the label is not declared. How do I do this?
[Code]....
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Apr 14, 2010
I've got a few labels in a datalist that are being populated based on the values of a queryString but without the query string the datalist is empty.
How can I access the labels in the datalist and set a default value to them on the load of the page?
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May 28, 2010
I have the following:
[Code]....
How to pass image id from datalist radiobutton to server side code
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Jun 27, 2010
I have the following code the form of a datalist,
<asp:DataList ID="DataList1" runat="server" BorderColor="black" CellPadding="3" Font-Names="Verdana"
Font-Size="8pt">
[code]...
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Oct 20, 2010
I want to get control's value in DataList but I can't.
I tried to use FindControl() but still have error ("
Object reference not set to an instance of an object.
")
this is my code (
string id = ((HiddenField)DataList2.FindControl("hfID")).Value;
)
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Dec 15, 2010
how to set pagination using datalist control in asp.net.
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