Hi @PriceRightHTML5team,
The following happens.
1. The Store loads the current page's records from the server.
2. A user edits something.
3. A user change the current page - the Store loads the new records from the server. The previously loaded records go away.
4. A user moves to the previous page - the Store loads the records from the server again.
The only way to maintain the changes - save it before changing the page.
There is a Store's WarningOnDirty option which warns a user about it.
Example
<%@ Page Language="C#" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<%@ Import Namespace="System.Collections.Generic" %>
<script runat="server">
public List<object> MyData = new List<object>
{
new { test = "test1" },
new { test = "test2" },
new { test = "test3" },
new { test = "test4" },
new { test = "test5" },
new { test = "test6" },
new { test = "test7" },
new { test = "test8" },
new { test = "test9" }
};
protected void Store_ReadData(object sender, StoreReadDataEventArgs e)
{
List<object> data = this.MyData;
var limit = e.Limit;
if ((e.Start + e.Limit) > data.Count)
{
limit = data.Count - e.Start;
}
List<object> rangeData = (e.Start < 0 || limit < 0) ? data : data.GetRange(e.Start, limit);
e.Total = data.Count;
(sender as Store).DataSource = rangeData;
}
</script>
<!DOCTYPE html>
<html>
<head runat="server">
<title>Ext.NET v2 Example</title>
</head>
<body>
<form runat="server">
<ext:ResourceManager runat="server" />
<ext:GridPanel ID="GridPanel1" runat="server">
<Store>
<ext:Store
runat="server"
OnReadData="Store_ReadData"
PageSize="3"
WarningOnDirty="true">
<Model>
<ext:Model runat="server">
<Fields>
<ext:ModelField Name="test" />
</Fields>
</ext:Model>
</Model>
<Proxy>
<ext:PageProxy>
<Reader>
<ext:JsonReader />
</Reader>
</ext:PageProxy>
</Proxy>
</ext:Store>
</Store>
<ColumnModel runat="server">
<Columns>
<ext:Column runat="server" Text="Test" DataIndex="test">
<Editor>
<ext:TextField runat="server" />
</Editor>
</ext:Column>
</Columns>
</ColumnModel>
<BottomBar>
<ext:PagingToolbar runat="server" />
</BottomBar>
<Plugins>
<ext:CellEditing runat="server" />
</Plugins>
</ext:GridPanel>
</form>
</body>
</html>
