Hi,
There is no automatic validation but you can manually checking value using ValuidateEdit listener
<%@ Page Language="C#" %>
<%@ Register Assembly="Coolite.Ext.Web" Namespace="Coolite.Ext.Web" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
if (!Ext.IsAjaxRequest)
{
this.Store1.DataSource = new object[]
{
new object[] {"Company1", "Description"},
new object[] {"Company2", "Description"},
new object[] {"Company3", "Description"},
new object[] {"Company4", "Description"},
new object[] {"Company5", "Description"}
};
this.Store1.DataBind();
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script type="text/javascript">
function validateEdit(e){
if(e.field == "company"){
if(e.grid.store.find(e.field, e.value) !== -1){
Ext.Msg.show({
title:"Warning",
msg: "Company with name '"+e.value+"' exists already. Please input another name.",
buttons: Ext.Msg.OK,
icon: Ext.MessageBox.WARNING
});
return false;
}
return true;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<ext:ScriptManager ID="ScriptManager1" runat="server" />
<ext:Store ID="Store1" runat="server">
<Reader>
<ext:ArrayReader>
<Fields>
<ext:RecordField Name="company" />
<ext:RecordField Name="description" />
</Fields>
</ext:ArrayReader>
</Reader>
</ext:Store>
<ext:GridPanel
ID="GridPanel1"
runat="server"
StoreID="Store1"
StripeRows="true"
Title="Grid"
TrackMouseOver="true"
Width="600"
Height="350"
AutoExpandColumn="Company">
<ColumnModel ID="ColumnModel1" runat="server">
<Columns>
<ext:Column ColumnID="Company" Header="Company" DataIndex="company">
<Editor>
<ext:TextField runat="server"></ext:TextField>
</Editor>
</ext:Column>
<ext:Column Header="Description" DataIndex="description">
<Editor>
<ext:TextField runat="server"></ext:TextField>
</Editor>
</ext:Column>
</Columns>
</ColumnModel>
<TopBar>
<ext:Toolbar runat="server">
<Items>
<ext:Button runat="server" Text="Insert" Icon="Add">
<Listeners>
<Click Handler="#{GridPanel1}.insertRecord(0, {company: ''});#{GridPanel1}.getView().focusRow(0);#{GridPanel1}.startEditing(0, 0);" />
</Listeners>
</ext:Button>
</Items>
</ext:Toolbar>
</TopBar>
<Listeners>
<ValidateEdit Fn="validateEdit" />
</Listeners>
</ext:GridPanel>
</form>
</body>
</html>