asp.net GridView Paging Save options _ Practical Tips

Copy Code code as follows:

#region//' revision:1.00 Created date:2013/08/02 Created Id:una [#1300071] Add multiple Marquee
<summary>
The session takes multiple marquee values
</summary>
private void Rememberoldvalues ()
{
ArrayList categoryidlist = new ArrayList ();
String index = "";
foreach (GridViewRow row in gridview.rows)
{
index = (string) gridview.datakeys[row. RowIndex]. Value;
BOOL result = (CheckBox) row. FindControl ("DeleteThis")). Checked;

Check in the session
if (session["id"]!= null)
Categoryidlist = (ArrayList) session["id"];
if (result)
{
if (!categoryidlist.contains (index))
Categoryidlist.add (index);
}
Else
Categoryidlist.remove (index);
}
if (categoryidlist!= null && categoryidlist.count > 0)
session["id"] = categoryidlist;
}

<summary>
Multiple marquee is true before session page
</summary>
private void Repopulatevalues ()
{
ArrayList categoryidlist = (ArrayList) session["id"];
if (categoryidlist!= null && categoryidlist.count > 0)
{
foreach (GridViewRow row in gridview.rows)
{
String index = (string) gridview.datakeys[row. RowIndex]. Value;
if (Categoryidlist.contains (index))
{
CheckBox MyCheckBox = (checkbox) row. FindControl ("DeleteThis");
Mycheckbox.checked = true;
}
}
}
}
#endregion

Copy Code code as follows:

protected void Gridview_pageindexchanging (object sender, Gridviewpageeventargs e)
{
Rememberoldvalues ();
Gridview.pageindex = E.newpageindex;
Binddata ();
Repopulatevalues ();
}

Copy Code code as follows:

protected void Btnselect_click (object sender, EventArgs e)
{
String items = "";
ArrayList categoryidlist = new ArrayList ();
String index = "";
foreach (GridViewRow row in gridview.rows)
{
index = (string) gridview.datakeys[row. RowIndex]. Value;
BOOL result = (CheckBox) row. FindControl ("DeleteThis")). Checked;

Check in the session
if (session["id"]!= null)
Categoryidlist = (ArrayList) session["id"];
if (result)
{
if (!categoryidlist.contains (index))
Categoryidlist.add (index);
}
Else
Categoryidlist.remove (index);
}
if (categoryidlist!= null && categoryidlist.count > 0)
for (int i = 0; i < Categoryidlist.count; i++)
{
Items + + Categoryidlist[i] + ",";
}
Items = items. Substring (0, items. LENGTH-1);
Scriptmanager.registerstartupscript (this, this.) GetType (), "", "check (' + items +" '); ", true);
Session.remove ("id");
}