本文整理汇总了C#中IObjectInfo.GetIdentifierValue方法的典型用法代码示例。如果您正苦于以下问题：C# IObjectInfo.GetIdentifierValue方法的具体用法？C# IObjectInfo.GetIdentifierValue怎么用？C# IObjectInfo.GetIdentifierValue使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IObjectInfo的用法示例。
在下文中一共展示了IObjectInfo.GetIdentifierValue方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: BuildUpdateSqlQuery
/// <summary>
/// Builds an SqlQuery to update the database record for the specified instance with the current property values of the instance.
/// </summary>
/// <param name="objectInfo">The object information.</param>
/// <param name="instance">The instance to update.</param>
/// <returns>
/// The created <see cref="SqlQuery" />.
/// </returns>
public SqlQuery BuildUpdateSqlQuery(IObjectInfo objectInfo, object instance)
{
if (objectInfo == null)
{
throw new ArgumentNullException("objectInfo");
}
string updateCommand;
if (!this.updateCommandCache.TryGetValue(objectInfo.ForType, out updateCommand))
{
var builder = new UpdateSqlBuilder(this.SqlCharacters)
.Table(objectInfo);
for (int i = 0; i < objectInfo.TableInfo.Columns.Count; i++)
{
var columnInfo = objectInfo.TableInfo.Columns[i];
if (columnInfo.AllowUpdate)
{
builder.SetColumnValue(columnInfo.ColumnName, null);
}
}
var updateSqlQuery = builder.WhereEquals(objectInfo.TableInfo.IdentifierColumn.ColumnName, objectInfo.GetIdentifierValue(instance))
.ToSqlQuery();
var newUpdateCommandCache = new Dictionary<Type, string>(this.updateCommandCache);
newUpdateCommandCache[objectInfo.ForType] = updateSqlQuery.CommandText;
updateCommand = updateSqlQuery.CommandText;
this.updateCommandCache = newUpdateCommandCache;
}
var updateValues = objectInfo.GetUpdateValues(instance);
return new SqlQuery(updateCommand, updateValues);
}