<asp:GridView ID="Basic" runat="server"
DataKeyNames="Q uestionID,isHea ding" AutoGenerateCol umns="false"
AllowPaging="tr ue" PageSize="100">
<Columns>
<asp:BoundFie ld Visible="false" DataField="Ques tionID"
HeaderText="Que stionID"></asp:BoundField>
<asp:BoundFie ld DataField="Ques tionDesc"
HeaderText="Que stion"
ItemStyle-HorizontalAlign ="Left"></
asp:BoundField>
<asp:TemplateFi eld HeaderText="Ans wer">
<ItemTemplate >
<asp:RadioButto nList
RepeatDirection ="Horizontal " runat="server"
ID="rdAnswer" SelectedIndex=' <%#
SetState(DataBi nder.Eval
(Container.Data Item,"Answer")) %>'>
<asp:ListItem Value="0">Yes</
asp:ListItem>
<asp:ListItem Value="1">No</
asp:ListItem>
</asp:RadioButton List>
</ItemTemplate>
</asp:TemplateFie ld>
</Columns>
</asp:GridView>
Hello,
I need to create a gridview programmaticall y in code that would be
similar to the above code (in design mode).\
Any pointers?
Thanks, 5 23633
Someones already done it for you. http://forums.asp.net/thread/1379019.aspx
Not sure why you wouldn't just use a templated gridview though!
Regards
John Timney (MVP) http://www.johntimney.com http://www.johntimney.com/blog
"NKaufman" <na****@hotmail .comwrote in message
news:11******** *************@o 5g2000hsb.googl egroups.com...
<asp:GridView ID="Basic" runat="server"
DataKeyNames="Q uestionID,isHea ding" AutoGenerateCol umns="false"
AllowPaging="tr ue" PageSize="100">
<Columns>
<asp:BoundFie ld Visible="false" DataField="Ques tionID"
HeaderText="Que stionID"></asp:BoundField>
<asp:BoundFie ld DataField="Ques tionDesc"
HeaderText="Que stion"
ItemStyle-HorizontalAlign ="Left"></
asp:BoundField>
<asp:TemplateFi eld HeaderText="Ans wer">
<ItemTemplate >
<asp:RadioButto nList
RepeatDirection ="Horizontal " runat="server"
ID="rdAnswer" SelectedIndex=' <%#
SetState(DataBi nder.Eval
(Container.Data Item,"Answer")) %>'>
<asp:ListItem Value="0">Yes</
asp:ListItem>
<asp:ListItem Value="1">No</
asp:ListItem>
</asp:RadioButton List>
</ItemTemplate>
</asp:TemplateFie ld>
</Columns>
</asp:GridView>
Hello,
I need to create a gridview programmaticall y in code that would be
similar to the above code (in design mode).\
Any pointers?
Thanks,
Hello John,
Following are some of the issues in the example you cited:
(1) All columns of datatable will be displayed. In my case, I need
some columns to be visible and some are not.
(2) Does not handle DataKeys that I need
(3) Does not handle adding a control like the radiobuttonlist that I
need
In a post from the same thread - "why not a basic gridview? .....
since one your example you are not doing additional formatting to the
data other than creating bound columns."
Thanks for you assistance.
On Mar 28, 4:09 pm, "John Timney \(MVP\)"
<x_j...@timney. eclipse.co.ukwr ote:
Someones already done it for you.http://forums.asp.net/thread/1379019.aspx
Not sure why you wouldn't just use a templated gridview though!
Regards
John Timney (MVP)http://www.johntimney.comhttp://www.johntimney.com/blog
I didn't think the example gave you a perfect solution, only that it would
give you an idea of how to create a datagrid dynamically.
If you use a template against a gridview then you can BIND and EVAL against
any of the datatable values and structure your output as you need it,
Regards
John Timney (MVP) http://www.johntimney.com http://www.johntimney.com/blog
"NKaufman" <na****@hotmail .comwrote in message
news:11******** **************@ y80g2000hsf.goo glegroups.com.. .
Hello John,
Following are some of the issues in the example you cited:
(1) All columns of datatable will be displayed. In my case, I need
some columns to be visible and some are not.
(2) Does not handle DataKeys that I need
(3) Does not handle adding a control like the radiobuttonlist that I
need
In a post from the same thread - "why not a basic gridview? .....
since one your example you are not doing additional formatting to the
data other than creating bound columns."
Thanks for you assistance.
On Mar 28, 4:09 pm, "John Timney \(MVP\)"
<x_j...@timney. eclipse.co.ukwr ote:
>Someones already done it for you.http://forums.asp.net/thread/1379019.aspx
Not sure why you wouldn't just use a templated gridview though!
Regards
John Timney (MVP)http://www.johntimney.comhttp://www.johntimney.com/blog
Hi,
To generate a gridView programmaticall y, you need to create a GridView
object and assign the properties that you had mentioned.
BoundField objects can be created and added to the gridview object.
Problem comes only when you need to add an ItemTemplate column. I tried a
sample code for the exact same gridView code that you had posted.
//My sample datatable which i am using to bind to the grid view.
DataTable dtSource = new DataTable();
dtSource.Column s.Add("Question ID");
dtSource.Column s.Add("Question Desc");
dtSource.Column s.Add("Answer") ;
dtSource.Column s.Add("isHeadin g");
DataRow dr = dtSource.NewRow ();
dr[0] = "Q1";
dr[1] = "I like reading books ";
dr[2] = "1";
dr[3] = "true";
dtSource.Rows.A dd(dr);
dr = dtSource.NewRow ();
dr[0] = "Q2";
dr[1] = "I watch a lot of TV";
dr[2] = "0";
dr[3] = "false";
dtSource.Rows.A dd(dr);
//Creating a gridView
GridView gvBasic = new GridView();
gvBasic.DataKey Names="Question ID,isHeading".S plit(",".ToChar Array());
gvBasic.AutoGen erateColumns = false;
gvBasic.AllowPa ging = true;
gvBasic.PageSiz e = 100;
gvBasic.DataSou rce = dtSource;
//Your column 1 that is hidden
BoundField objCol1 = new BoundField();
objCol1.Visible = false;
objCol1.DataFie ld = "QuestionID ";
objCol1.HeaderT ext = "QuestionID ";
gvBasic.Columns .Add(objCol1);
//Your column 2 that has the questions
BoundField objCol2 = new BoundField();
objCol2.DataFie ld = "QuestionDe sc";
objCol2.HeaderT ext = "Question";
objCol2.ItemSty le.HorizontalAl ign = HorizontalAlign .Left;
gvBasic.Columns .Add(objCol2);
//ItemTemplate is an Interface in dotnet and hence,
//Create an ItemTemplate class which implements the interface.
// Your column three which has the radiobuttonList on it
TemplateField objCol3 = new TemplateField() ;
objCol3.HeaderT ext = "Answer";
ItemTemplate objTemplate = new ItemTemplate("r dAnswer", dtSource);
objCol3.ItemTem plate = objTemplate;
gvBasic.Columns .Add(objCol3);
gvBasic.DataBin d();
Page.Form.Contr ols.Add(gvBasic );
Code for the ItemTemplate class:
public class ItemTemplate : ITemplate
{
string ControlName = "";
object DataSource = null;
//ControlName: Name of the radio button list.
// DataSource is the datatable to which the gridview is bound to.
public ItemTemplate(st ring ControlName,obj ect DataSource)
{
this.ControlNam e = ControlName;
this.DataSource = DataSource;
}
public void InstantiateIn(C ontrol objContainer)
{
RadioButtonList rdAnswer = new RadioButtonList ();
rdAnswer.ID = this.ControlNam e;
//An event is added to traverse every row that is bound to the
//gridview to fetch the answer column.
rdAnswer.DataBi nding += new EventHandler(th is.OnDataBindin g);
ListItem lst1 = new ListItem("Yes", "0");
ListItem lst2 = new ListItem("No"," 1");
rdAnswer.Items. Add(lst1);
rdAnswer.Items. Add(lst2);
objContainer.Co ntrols.Add(rdAn swer);
}
public void OnDataBinding(o bject sender, EventArgs e)
{
RadioButtonList rdAnswer = (RadioButtonLis t)sender;
GridViewRow container = (GridViewRow)rd Answer.NamingCo ntainer;
//Setting the value of the selected index - This is the replacement for the
eval.
rdAnswer.Select edIndex =
int.Parse(((Dat aRowView)contai ner.DataItem).R ow.ItemArray[2].ToString());
}
}
I guess you shd be all set with this code sample above.
- Parvathy Padmanabhan
Parvathy,
Excellent. I will try this and let you know.
Thanks,
On Mar 30, 6:46 pm, Parvathy Padmanabhan
<ParvathyPadman ab...@discussio ns.microsoft.co mwrote:
Hi,
To generate a gridView programmaticall y, you need to create a GridView
object and assign the properties that you had mentioned.
BoundField objects can be created and added to the gridview object.
Problem comes only when you need to add an ItemTemplate column. I tried a
sample code for the exact same gridView code that you had posted.
//My sample datatable which i am using to bind to the grid view.
DataTable dtSource = new DataTable();
dtSource.Column s.Add("Question ID");
dtSource.Column s.Add("Question Desc");
dtSource.Column s.Add("Answer") ;
dtSource.Column s.Add("isHeadin g");
DataRow dr = dtSource.NewRow ();
dr[0] = "Q1";
dr[1] = "I like reading books ";
dr[2] = "1";
dr[3] = "true";
dtSource.Rows.A dd(dr);
dr = dtSource.NewRow ();
dr[0] = "Q2";
dr[1] = "I watch a lot of TV";
dr[2] = "0";
dr[3] = "false";
dtSource.Rows.A dd(dr);
//Creating a gridView
GridView gvBasic = new GridView();
gvBasic.DataKey Names="Question ID,isHeading".S plit(",".ToChar Array());
gvBasic.AutoGen erateColumns = false;
gvBasic.AllowPa ging = true;
gvBasic.PageSiz e = 100;
gvBasic.DataSou rce = dtSource;
//Your column 1 that is hidden
BoundField objCol1 = new BoundField();
objCol1.Visible = false;
objCol1.DataFie ld = "QuestionID ";
objCol1.HeaderT ext = "QuestionID ";
gvBasic.Columns .Add(objCol1);
//Your column 2 that has the questions
BoundField objCol2 = new BoundField();
objCol2.DataFie ld = "QuestionDe sc";
objCol2.HeaderT ext = "Question";
objCol2.ItemSty le.HorizontalAl ign = HorizontalAlign .Left;
gvBasic.Columns .Add(objCol2);
//ItemTemplate is an Interface in dotnet and hence,
//Create an ItemTemplate class which implements the interface.
// Your column three which has the radiobuttonList on it
TemplateField objCol3 = new TemplateField() ;
objCol3.HeaderT ext = "Answer";
ItemTemplate objTemplate = new ItemTemplate("r dAnswer", dtSource);
objCol3.ItemTem plate = objTemplate;
gvBasic.Columns .Add(objCol3);
gvBasic.DataBin d();
Page.Form.Contr ols.Add(gvBasic );
Code for the ItemTemplate class:
public class ItemTemplate : ITemplate
{
string ControlName = "";
object DataSource = null;
//ControlName: Name of the radio button list.
// DataSource is the datatable to which the gridview is bound to.
public ItemTemplate(st ring ControlName,obj ect DataSource)
{
this.ControlNam e = ControlName;
this.DataSource = DataSource;
}
public void InstantiateIn(C ontrol objContainer)
{
RadioButtonList rdAnswer = new RadioButtonList ();
rdAnswer.ID = this.ControlNam e;
//An event is added to traverse every row that is bound to the
//gridview to fetch the answer column.
rdAnswer.DataBi nding += new EventHandler(th is.OnDataBindin g);
ListItem lst1 = new ListItem("Yes", "0");
ListItem lst2 = new ListItem("No"," 1");
rdAnswer.Items. Add(lst1);
rdAnswer.Items. Add(lst2);
objContainer.Co ntrols.Add(rdAn swer);
}
public void OnDataBinding(o bject sender, EventArgs e)
{
RadioButtonList rdAnswer = (RadioButtonLis t)sender;
GridViewRow container = (GridViewRow)rd Answer.NamingCo ntainer;
//Setting the value of the selected index - This is the replacement for the
eval.
rdAnswer.Select edIndex =
int.Parse(((Dat aRowView)contai ner.DataItem).R ow.ItemArray[2].ToString());
}
}
I guess you shd be all set with this code sample above.
- Parvathy Padmanabhan
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: |
last post by:
I'm wondering if it's possible, outside of the declaration of an ASP.NET 2.0
GridView, to programmatically style individual columns. For example, I might
want to make the text in a particular column bold, or larger.
I know that Templates and other declarative mechanisms exist to make this
happen. I'm wondering if you can apply the styling using code only. What is
the general syntax?
Flash Actionscript has this "after the fact"...
|
by: Brian McClellan |
last post by:
Just wondering if anyone has a simple example of creating a gridview
completely programmatically, i'm not doing anything terribly sophisticated.
When creating the gridview declaratively evertying works fine, however
programmatically, while the grid will display data that exsists in the
database, any operation on the data ( editing/updating/deleting ) seems to
cause a rowdeleting/updating etc error. Or is this simply not meant to be
done?
|
by: Chris |
last post by:
Hi,
Can I add a new row to gridview programmatically, similar to ADD method
of listbox ?
Thanks a lot in advance.
|
by: pApAk |
last post by:
Hi,
i am working at .NET Web-Application (c# codebehind) and i have placed on my
web-site a GridView, aka DataGrid (that works as Server control). This
GridView generated following code in HTML-source:
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
Is there a way to "reach" a GridView (or a GridView-Row) via Javascript? For
|
by: Philip |
last post by:
I can use a GridView and ObjectDataSource to bind my data using "Eval"
expressions ... provided the GridView and related Column TemplateFields are
defined as inline HTML.
I prefer to programmatically create the GridView Column/ TemplateField
definitions at runtime.... because I do not know the number of applicable
columns until runtime. The addition of the GridView Column/ TemplateFields
work fine, however the "Eval" expressions do not...
| |
by: cook.jonathan.m |
last post by:
I want to programmatically add a dropdown to each row in a certain
column returned to the gridview by my query. I want to do this
entirely in behind-code. My gridview tag in the page will have the
following code and no more.
<asp:GridView ID="gv" runat="server"
AutoGenerateColumns="false">
</asp:GridView>
Now, I have generated boundfields to add regular data without a
|
by: Tomasz |
last post by:
Hello Developers,
Here is interesting problem I just came across: how do I wire a GridView
control programmatically?
Here is my sample code using Object Data Source:
protected void Page_Load(object sender, EventArgs e)
{
ObjectDataSource ods = new ObjectDataSource("MyTestTableAdapter",
|
by: Don Miller |
last post by:
Without a SQLDataSource declaratively linked to a GridView, I
programmatically create a dataset and bind it to a GridView with
EnableSortingAndPagingCallbacks=True and Paging=True. The GridView displays
(in a View of a MultiView) but when I press the page numbers to page through
the dataset, the GridView disappears completely (is not rendered) without a
postback. When I take action (press a button) to show the GridView again,
the GridView...
|
by: =?Utf-8?B?QW5nZWw=?= |
last post by:
I seem to understand how the control works as long as I mated to
SqlDataSource or ObjDataSource it works fine. But I do not want to flatten
my design in this manner. I am interested in how I can programmatically
manipulate the control. In other words maybe just use the data source then
extract from the control the information do with it as I see fit. The
opposite is also true. I want to be able to add or modify the data in the...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
| |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| |
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| |