/// <summary>
/// 取得默认值
/// </summary>
/// <param name="key"></param>
/// <param name="ctx"></param>
/// <param name="dc"></param>
/// <returns></returns>
public static object GetDefaultValue(string key, PanelContext ctx, We7DataColumn dc)
{
DefaultGenerator generator = GetGenerator(key);
generator.Ctx = ctx;
generator.DC = dc;
return(generator != null?generator.Generate() : null);
}
/// <summary>
/// 取得默认值生成器
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public static DefaultGenerator GetGenerator(string key)
{
DefaultGenerator generator = AppCtx.Cache.RetrieveObject <DefaultGenerator>(GetCacheKey(key));
if (generator == null)
{
if (ModelConfig.Defaults.Get(key) == null)
{
generator = new DefaultDefaultGenerator();
}
else
{
generator = Utils.CreateInstance <DefaultGenerator>(ModelConfig.Defaults[key]);
AppCtx.Cache.AddObjectWithFileChange(GetCacheKey(key), generator, ModelConfig.ConfigFilePath);
}
}
return(generator);
}
/// <summary>
/// 处理所有数据列
/// </summary>
/// <param name="ctx"></param>
void ProcessAllDataColumns(PanelContext ctx)
{
foreach (We7DataColumn dc in ctx.DataSet.Tables[0].Columns)
{
if (!String.IsNullOrEmpty(dc.DefaultValue) &&
dc.Direction != ParameterDirection.ReturnValue &&
(ctx.Row[dc.Name] == null || String.IsNullOrEmpty(ctx.Row[dc.Name].ToString())))
{
if (String.Compare(dc.Name, "AccountID") == 0)
{
continue;
}
if (IsEdit && String.Compare(dc.Name, "Updated", true) == 0)
{
continue;
}
ctx.Row[dc.Name] = DefaultGenerator.GetDefaultValue(dc.DefaultValue, ctx, dc);
}
}
}