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<asp:TextBox ID="txtPassword" runat="server" TextMode="Password" />
<asp:RegularExpressionValidator ID="valPassword" runat="server"
   ControlToValidate="txtPassword"
   ErrorMessage="Minimum password length is 5"
   ValidationExpression=".{5}.*" />

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        /// gvObjectElement as ASPxGridView
        /// <dx:ASPxGridView ID="gvObjectElement" runat="server" AutoGenerateColumns="False"
        /// DataSourceID="dsObjectElement" KeyFieldName="C_OBJECT_ELEMENT" 
        /// OnDetailRowExpandedChanged="gvObjectElementDetailRowExpandedChanged">
        
        protected void gvObjectElementDetailRowExpandedChanged(object sender, ASPxGridViewDetailRowEventArgs e)
        {
            var grid = (ASPxGridView) sender;
            Session[GRID_DETAIL_INDEX] = Convert.ToInt32(grid.GetRowValues(e.VisibleIndex, grid.KeyFieldName));
        }

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Visible='<%# Eval("DMR")=="Yes" %>'

--ну и с сервака

ImageUrl="<%# GetIconImageUrl(Container) %>"

protected string GetIconImageUrl(GridViewDataItemTemplateContainer container) {
        Quote quote = (Quote)grid.GetRow(container.VisibleIndex);
        return String.Format("Images/{0}.gif", quote.Change > 0 ? "Up" : "Down");
    }

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/* begin table creation */

create table department
 (dept_id smallint unsigned not null auto_increment,
  name varchar(20) not null,
  constraint pk_department primary key (dept_id)
 );

create table branch
 (branch_id smallint unsigned not null auto_increment,

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ALTER TABLE [D_USER] ADD [PWD] uniqueidentifier NOT NULL DEFAULT newid()

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SELECT [SC].[NAME]
FROM sysobjects AS [SO]
JOIN syscolumns AS [SC] ON ([SO].[ID] = [SC].[ID])
	AND ([SO].[XTYPE] = 'U')
	AND ([SO].[NAME]  = 'D_OBJECT') -- 'D_OBJECT' имя таблицы
WHERE ([SC].[ISNULLABLE] = 0)

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<dx:GridViewDataTextColumn Caption="Текущие цены" FieldName="COST_EXPL_NOW" FixedStyle="None"
	SortOrder="None" UnboundType="Bound" VisibleIndex="5">
	<PropertiesTextEdit DisplayFormatString="{0:C2}" />
</dx:GridViewDataTextColumn>

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DataTable usedKeys;
DataTable allKeys;

// …
// Here you must fill <allKeys> and <usedKeys>

// add PrimaryKey
allKeys.PrimaryKey = new[] { usedKeys.Columns["FIELD_NAME"] };

// processing

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type
 TMyLang = record
   key, ru, kz:string;
 end;
 TArrMyLang = array of TMyLang;

TfrxReport.OnGetValue ->VarName:string