Question

How to add a checkbox column to datagrid at run time(just like inbox page in any mail)

Asked by: Anushart

Hello,
I have a datagrid on my web page which is populated with data from database at run time.
I now need to select  a column of a datagrid(for other functionalities like delete, view etc jst like a inbox in mail) I am planning to add checkboxes next to all columns on datagrid so that I can know which row is selected.Can anyboby help me how to achive this.I'm developing on VS-2003 and VB.net as backend code.
Thanks!!

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Asked On
2008-05-16 at 07:39:28ID23408424
Topics

Visual Studio

,

Microsoft Visual Basic.Net

,

Programming for ASP.NET

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: raterusPosted on 2008-05-16 at 08:26:30ID: 21583585

The basic usage is something like this,

<columns>
  <asp:templatecolumn>
    <asp:checkbox id="chkSelect" runat="server" />
  </asp:templatecolumn>
  ...
  ...
</columns>

 

by: bhaspupPosted on 2008-05-21 at 03:29:41ID: 21613533

You can do it in two ways
First way
1. Add a column as raterus specified and don't bind this column.
2. At runtime, After binding the Data Grid, have another function which loops through the grid like
    foreach (DataGridItem item in dgrdList.Items)
          item.Cells[0].Controls.add[RewardCheckBox(id));

Second Way
1. Instead of using DataGrid, you can generate the table on the fly and when you create the controls, the first column will be as TableCell containing check box.
Hope this helps.
Bhaskar


private FillCheckBox()
{
foreach (DataGridItem item in dgrdList.Items)
item.Cells[1].Text = System.Convert.ToString(OfferTool.classes.Encryption.intEncryptedNumber(int.Parse(item.Cells[0].Text)));
}
 
private TableCell RewardCheckBox(int rewardID)
{
TableCell tblCell = new TableCell();
CheckBox chkReward = new CheckBox();
chkReward.ID = "chkRewardID_" + rewardID.ToString(); 
tblCell.HorizontalAlign = HorizontalAlign.Center;
tblCell.Controls.Add(chkReward);
return tblCell;
}

                                              
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