linq to sql 我這里查詢tbdesk表內的記錄?DeskTypeID和Name是條件

?? ?private?void?bind()
????{
????????using?(cpDataContext?cp?=?new?cpDataContext())
????????{
????????????Expression<Func<tbDesk,?bool>>?expr?=?n?=>?getc(n);
????????????var?xquery?=?cp.tbDesk.Where<tbDesk>(expr.Compile());
????????????this.GridView1.DataSource=?xquery;
????????????GridView1.DataBind();
????????}
????}
????private?bool?getc(tbDesk?tb)?
????{
????????//加等于true?或等于false
????????bool?rst?=?false;
????????rst?|=?string.IsNullOrEmpty(TextBox1.Text.Trim())???false?:?tb.DeskTypeID.Equals(int.Parse(TextBox1.Text.Trim()));
????????rst?|=?string.IsNullOrEmpty(TextBox2.Text.Trim())???false?:?tb.Name.Contains(TextBox2.Text.Trim());
????????return?rst;

???????//注釋的這部分內容為多條件and的時候
????????//bool?rst?=?true;
????????//rst?|=?string.IsNullOrEmpty(TextBox1.Text.Trim())???true?:?tb.DeskTypeID.Equals(int.Parse(TextBox1.Text.Trim()));
????????//rst?|=?string.IsNullOrEmpty(TextBox2.Text.Trim())???true?:?tb.Name.Contains(TextBox2.Text.Trim());
????????//return?rst;
????}

?

?

轉載于:https://www.cnblogs.com/ChaosHero/archive/2010/06/20/1761444.html

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