.net 自用代码大全天天收藏(C#版)

1.FindControl
查找控件
((Button)this.Import.FindControl("btnReadData")).Visible = false;
((HtmlTableCell)FindControl("tab0" + i.ToString())).Attributes.Add("class", "unSelectTab");

2.for
for (int i = 1; i < 4; i++)
{
((HtmlTableCell)FindControl("tab0" + i.ToString())).Attributes.Add("class", "unSelectTab");
}
3.context
this.Context.Items["FromPage"]
this.Context.Items.Add("str",s_str)

4.ViewState
o_ILCIComms = (ILCIComms)ViewState["ILCICommsTransfer"];

5.Attributes
this.txtCountryName.Attributes.Add("readonly", "true");

6.ClientScript.RegisterStartupScript
this.ClientScript.RegisterStartupScript(this.GetType(), "drpCountryJS", "<script>ObjReadCountry();</script>");

常用的算法
7.split
string[] SGEDNNos = o_aISPGComms.SGEDNo.Split(',');
if (SGEDNNos.Length != 0)
{
for (int i = 0; i < SGEDNNos.Length; i++)
{
if (i == 0)
{
s_SQL2.Append(" and SGEDNo=@SGEDNo" + i.ToString());
}
else
{
s_SQL2.Append(" or SGEDNo=@SGEDNo" + i.ToString());
}
}
}

8.sql && select
convert(varchar,'字段名称')
表A left(right) join 表B on 条件 where 条件
表A left(right) outerjoin 表B on 条件 where 条件
datediff(n,@now,@begin_time)

9.
待续....