FineUI Grid 缓存列显示隐藏状态

当列表字段过多时，需要隐藏掉一些，但是再次打开页面又显示出来了，FineUI没有提供缓存功能，那么自己动手，打开【ext-part2.js】找到

“if (Ext.grid.column.RowNumberer)”这里添加一个if代码如下

if(Ext.grid.header.Container){
Ext.override(Ext.grid.header.Container,{
onColumnCheckChange:function(checkItem, checked){
var header =Ext.getCmp(checkItem.headerId);
header[checked ?'show':'hide']();
F.customEvent("HeaderSelectedEven:id="+checkItem.headerId+";state="+checked+";grid="+this.grid.id);
}
});
}

效果是这样的



然后在页面的load事件里写



下面我们看WebBase里面的代码

/// <summary>
/// 功能描述:保存dgv隐藏表头id
/// 作　　者:huangzh
/// 创建日期:2015-11-20 14:16:06
/// 任务编号:
/// </summary>
/// <param name="strPageName">strPageName</param>
/// <param name="strDgvName">strDgvName</param>
/// <param name="strValues">strValues</param>
public static void SaveDGVHideComs(string strPageName, string strDgvName, string strValues)
{
HttpCookie cookie = new HttpCookie(strPageName + "_" + strDgvName);
cookie.Expires = DateTime.Now.AddMonths(12);
cookie.Value = strValues;
HttpContext.Current.Response.Cookies.Add(cookie);
}

/// <summary>
/// 功能描述:获取DGV隐藏表头id
/// 作　　者:huangzh
/// 创建日期:2015-11-20 14:15:55
/// 任务编号:
/// </summary>
/// <param name="strPageName">strPageName</param>
/// <param name="strDgvName">strDgvName</param>
/// <returns>返回值</returns>
public static string GetDGVHideComs(string strPageName, string strDgvName)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[strPageName + "_" + strDgvName];
if (cookie != null)
{
return cookie.Value;
}
else
{
return "";
}
}

/// <summary>
/// 功能描述:检查DGV隐藏表头
/// 作　　者:huangzh
/// 创建日期:2015-11-20 14:15:34
/// 任务编号:
/// </summary>
/// <param name="strPageName">strPageName</param>
/// <param name="strDgvName">strDgvName</param>
/// <param name="streventArgument">streventArgument</param>
public static void CheckDGVHideComs(string strPageName, string strDgvName, string streventArgument)
{
if (streventArgument.StartsWith("HeaderSelectedEven:"))
{
string strValues = streventArgument.Substring("HeaderSelectedEven:".Length);
string[] values = strValues.Split(';');
string strid = values[0].Split('=')[1];
string strstate = values[1].Split('=')[1];
string strDgvIds = values[2].Split('=')[1];
string[] names = strDgvIds.Split('_');
if (strDgvName == names[names.Length - 1])
{
string strValue = GetDGVHideComs(strPageName, strDgvName);
List<string> lstValues = strValue.Split(',').ToList();
if (strstate.ToLower() == "true")
{
if (lstValues.Contains(strid))
{
lstValues.Remove(strid);
}
}
else
{
if (!lstValues.Contains(strid))
{
lstValues.Add(strid);
}
}

strValue = string.Join(",", lstValues);
SaveDGVHideComs(strPageName, strDgvName, strValue);
}
}
}

/// <summary>
/// 功能描述:设置dgv隐藏表头
/// 作　　者:huangzh
/// 创建日期:2015-11-20 14:20:11
/// 任务编号:
/// </summary>
/// <param name="dgv">dgv</param>
/// <param name="strPageName">strPageName</param>
public static void SetDGVHideCom(FineUI.Grid dgv, string strPageName)
{
string strValue = GetDGVHideComs(strPageName, dgv.ID);
if (!string.IsNullOrEmpty(strValue))
{
dgv.HiddenColumns = strValue.Split(',');
}
}

代码就这么多，我们看下效果吧