asp.net listview control - using dynamic columns on itemtemplate - asp.net

Question

Greetings smart people of stackoverflow! I have this ListView with the following itemtemplate
<ItemTemplate>
<tr>
<td><%#Eval("abc_availablearea").ToString()%> </td>
<td><%#Eval("abc_classname").ToString() %> </td>
<td><%#Eval("abc_division").ToString() %> </td>
<td><%#Eval("abc_managername").ToString() %> </td>
</tr>
</ItemTemplate>
Now I am trying to use dynamic field names...so something like
<ItemTemplate>
<tr>
<td><%#Eval(fieldOne).ToString()%> </td>
<td><%#Eval(fieldTwo).ToString() %> </td>
<td><%#Eval(fieldThree).ToString() %> </td>
<td><%#Eval(fieldFour).ToString() %> </td>
</tr>
</ItemTemplate>
But it's not working for me. Anyone have an idea on how to do this? Thank you in advance for your help.

Answer 1

You'll need to create the ItemTemplate dynamically. Creating Web Server Control Templates Programmatically

Answer 2

I wrote a post on it: http://start-coding.blogspot.com/2013/06/dynamic-columns-in-listview.html.
On ItemDataBound event, do something like this:
private void dynamicPopulateRow(HtmlTableRow row, System.Data.DataRowView drv, int iGeneration)
{
if (row != null)
{
// http://www.pcreview.co.uk/forums/do-enumerate-all-columns-dataviewrow-t1244448.html
foreach (DataColumn dc in drv.Row.Table.Columns)
{
string sEmployeeID = drv["LoginID"].ToString();
if (dc.ColumnName.Equals("LoginID"))
{
// http://msdn.microsoft.com/en-US/library/e5daxzcy(v=vs.80).aspx
// Define a new HtmlTableCell control.
HtmlTableCell cell = new HtmlTableCell("td");
// Create the text for the cell.
cell.Controls.Add(new LiteralControl(Convert.ToString(drv[dc.ColumnName])));
cell.ColSpan = dc.ColumnName.Equals("LoginID") ? I_COLSPAN - iGeneration : 1;
// Add the cell to the HtmlTableRow Cells collection.
row.Cells.Add(cell);
}
else if (!(dc.ColumnName.Equals("GENERATION") ||
dc.ColumnName.Equals("hierarchy") ||
dc.ColumnName.Equals("rowNo") ||
dc.ColumnName.Equals("EmployeeID")))
{
// http://msdn.microsoft.com/en-US/library/e5daxzcy(v=vs.80).aspx
// Define a new HtmlTableCell control.
HtmlTableCell cell = new HtmlTableCell("td");
bool bIsNull = drv[dc.ColumnName] is System.DBNull;
Literal ltrl = new Literal();
ltrl.Text += "<input type=\"checkbox\" name=\"" + dc.ColumnName + "\"" +
(bIsNull ? "" : " value=" + drv[dc.ColumnName].ToString()) +
" id=\"" + sEmployeeID + "~" + dc.ColumnName.Replace(" ", "_") + "\"" +//will be retrieved later
" onclick=\"didModify(this)\" " +
(bIsNull ? " disabled" : "") +
(!bIsNull && ((int)drv[dc.ColumnName]) > 0 ? " checked>" : ">");
cell.Controls.Add(ltrl);
// Add the cell to the HtmlTableRow Cells collection.
row.Cells.Add(cell);
}
else
{
//other rows
}
}
}
}