Solved

Loop through a datagrid and replace values

Posted on 2004-08-11
5
477 Views
Last Modified: 2006-11-17
I have a datagrid.  It is being bound with a column that is either a 1 or a 0.  I need to replace the 1 with "X" and the 0 with "" in every field in a column.  Can someone help me out.  This cant be nearly as hard as Im making it.
Thanks for the help
0
Comment
Question by:imsolost
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 4

Accepted Solution

by:
BradB3030 earned 400 total points
ID: 11775205
dim i as integer
for i = 0 to datagrid1.items.count - 1
  'I'll assume the 1 or 0 is located in Column # 22, you'll have to change that accordingly
  if datagrid1.items(i).Cells(22) = "1" then
    datagrid1.items(i).Cells(22) = "X"
  else
    datagrid1.items(i).Cells(22) = ""
  end if
next i

You can also do something similar in an ItemDataBound handler subroutine

using e.item instead of datagrid1.items(i) and no for loop.
0
 
LVL 6

Expert Comment

by:pillbug22
ID: 11775256
Look at the ItemDataBound event.

This example uses assumes you're using ItemTemplates in your grid, but you could do it with bound columns as well:


Private Sub dg1_ItemDataBound(ByVal sender As System.Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles dg1.ItemDataBound

       If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
            Dim lbl As Label
            Dim myValue As Integer = CType(DataBinder.Eval(e.Item.DataItem, "dataBaseField"), Integer)
            lbl = CType(e.Item.FindControl("lblInItemTemplateToChange"), Label)
            If myValue = 1 Then
               lbl.Text = "X"
            Else
               lbl.Text = ""
            End If
        End If

    End Sub 'dgSurveyItems_ItemDataBound
0
 
LVL 8

Expert Comment

by:boulder_bum
ID: 11775258


private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
{
   if( e.Item.ItemType == ListItemType.Item ||
      e.Item.ItemType == ListItemType.AlternatingItem )
   {
        DataRowView drvCurrent = (DataRowView)e.Item.DataItem;

        //I'm assuming the data type is a bit
        bool oneOrZero;
        oneOrZero = (bool)drvCurrent["HasResponded"];
       
        //use casting to get a reference to whatever control you want to manipulate (label or whatever you use)
        //note: you will probably want to change the cells and/or controls index    
        //
        //Label lbl = ((Label)e.Item.Cells[0].Controls[0]);

        //manipulate your control
        if( oneOrZero )
             //lbl.Text = "X";
        else
             //lbl.Text = "O";
   }
}
0
 
LVL 7

Author Comment

by:imsolost
ID: 11777804
BradB -  I like the loop option.  however when I run it I get the error of :

Property 'Item' is 'ReadOnly'

0
 
LVL 7

Author Comment

by:imsolost
ID: 11777880
Ahh you were very close. Thanks for the help.  You just left out .text.  here is the loop I ended up using.

        Dim i As Integer
        For i = 0 To DG.Items.Count - 1
            If DG.Items(i).Cells(9).Text = 1 Then
                DG.Items(i).Cells(9).Text = "X"
            Else
                DG.Items(i).Cells(9).Text = ""
            End If
        Next i

Thanks again
0

Featured Post

Salesforce Made Easy to Use

On-screen guidance at the moment of need enables you & your employees to focus on the core, you can now boost your adoption rates swiftly and simply with one easy tool.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this Article, I will provide a few tips in problem and solution manner. Opening an ASPX page in Visual studio 2003 is very slow. To make it fast, please do follow below steps:   Open the Solution/Project. Right click the ASPX file to b…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

732 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question