public void SelectAllGridData(string keyField, string keyField2 = "", string keyField3 = "", string keyField4 = "", string keyField5 = "")
{
CachedDataKey.Clear();
for (var i = 0; i < Rows.Count; i++)
{
((CheckBox)Rows[i].Cells[0].FindControl("selectCheckBox")).Checked = true;
}
for (var i = 0; i < GridDataSource.Rows.Count; i++)
{
DataRow dr = GridDataSource.Rows[i];
OrderedDictionary dic = new OrderedDictionary();
dic.Add(keyField, dr[keyField]);
if (!string.IsNullOrEmpty(keyField2))
{
dic.Add(keyField2, dr[keyField2]);
}
if (!string.IsNullOrEmpty(keyField3))
{
dic.Add(keyField3, dr[keyField3]);
}
if (!string.IsNullOrEmpty(keyField4))
{
dic.Add(keyField4, dr[keyField4]);
}
if (!string.IsNullOrEmpty(keyField5))
{
dic.Add(keyField5, dr[keyField5]);
}
CachedDataKey.Add(dic);
}
}
/// <summary>
/// Raises the <see cref="E:System.Web.UI.WebControls.GridView.PageIndexChanging"/> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Web.UI.WebControls.GridViewPageEventArgs"/> that contains event data.</param>
/// <exception cref="T:System.Web.HttpException">There is no handler for the <see cref="E:System.Web.UI.WebControls.GridView.PageIndexChanging"/> event.</exception>
protected override void OnPageIndexChanging(GridViewPageEventArgs e)
{
var dataView = new DataView(GridDataSource);
//Code Added for Check box persistent
if (GridMode == GridSelectMode.MultiSelect)
{
if (GridMode == GridSelectMode.MultiSelect)
{
for (var i = 0; i < Rows.Count; i++)
{
var item = (OrderedDictionary)DataKeys[i].Values;
var checkBox = (CheckBox)Rows[i].Cells[0].FindControl("selectCheckBox");
int index;
if (checkBox.Checked && !Contains(CachedDataKey, item, out index))
{
CachedDataKey.Add(item);
}
else if (!checkBox.Checked && Contains(CachedDataKey, item, out index))
{
CachedDataKey.RemoveAt(index);
}
}
}
}
//End:
if (GridSortExpression != null)
{
dataView.Sort = GridSortExpression + " " + GridSortDirection;
}
PageIndex = e.NewPageIndex > -1 ? e.NewPageIndex : 0;
DataSource = dataView;
DataBind();
}
private IList <DataKey> MultiSelectData()
{
var response = new List <DataKey>();
for (var i = 0; i < Rows.Count; i++)
{
var checkBox = (CheckBox)Rows[i].Cells[0].FindControl("selectCheckBox");
// Added
var item = (OrderedDictionary)DataKeys[i].Values;
if (checkBox.Checked)
{
SelectedIndex = i;
response.Add(SelectedDataKey);
}
//Code Added for Check box persistent
else
{
int index;
if (Contains(CachedDataKey, item, out index))
{
CachedDataKey.RemoveAt(index);
}
}
//End:
}
//Code Added for Check box persistent
if (CachedDataKey != null)
{
List <OrderedDictionary> chkdatakey = CachedDataKey;
DataKey selectedKey;
foreach (var item in chkdatakey)
{
selectedKey = GetDataKeyFromSelected(item);
if (!response.Contains(selectedKey))
{
response.Add(selectedKey);
}
}
}
//End:
if (response.Count == 0)
{
throw new ValidationException(string.Format(ErrorDescription.NoRowSelectedinGridView, NoCheckCaption));
}
CachedDataKey = null;
return(response);
}
