11.GridView实现用“...”代替超长字符串：
效果图：
调用的方法：
1
public string SubStr(string sString, int nLeng)
2
{
3
if (sString.Length <= nLeng)
4
{
5 return sString;
6
}
7 string sNewStr = sString.Substring(0, nLeng);
8 sNewStr = sNewStr + "";
9 return sNewStr;
10
}
后台全部代码：
1using System;
2using System.Data;
3using System.Configuration;
4using System.Web;
5using System.Web.Security;
6using System.Web.UI;
7using System.Web.UI.WebControls;
8using System.Web.UI.WebControls.WebParts;
9using System.Web.UI.HtmlControls;
10using System.Data.SqlClient;
11public partial class _Default : System.Web.UI.Page
12{
13 SqlConnection sqlcon;
14 SqlCommand sqlcom;
15 string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
16 protected void Page_Load(object sender, EventArgs e)
17 {
18 if (!IsPostBack)
19 {
20 ViewState["SortOrder"] = "身份证号码";
21 ViewState["OrderDire"] = "ASC";
22 bind();
23 }
24 }
25 protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
26 {
27 GridView1.EditIndex = e.NewEditIndex;
28 bind();
29 }
30 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
31 {
32 string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
33 sqlcon = new SqlConnection(strCon);
34 sqlcom = new SqlCommand(sqlstr,sqlcon);
35 sqlcon.Open();
36 sqlcom.ExecuteNonQuery();
37 sqlcon.Close();
38 bind();
39 }
40 protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
41 {
42 sqlcon = new SqlConnection(strCon);
43 string sqlstr = "update 飞狐工作室 set 姓名='"
44 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
45 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
46 + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
47 sqlcom=new SqlCommand(sqlstr,sqlcon);
48 sqlcon.Open();
49 sqlcom.ExecuteNonQuery();
50 sqlcon.Close();
51 GridView1.EditIndex = -1;
52 bind();
53 }
54 protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
55 {
56 GridView1.EditIndex = -1;
57 bind();
58 }
59 public void bind()
60 {
61 string sqlstr = "select top 5 * from 飞狐工作室";
62 sqlcon = new SqlConnection(strCon);
63 SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
64 DataSet myds = new DataSet();
65 sqlcon.Open();
66 myda.Fill(myds, "飞狐工作室");
67 GridView1.DataSource = myds;
68 GridView1.DataKeyNames = new string[] { "身份证号码" };
69 GridView1.DataBind();
70 for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
71 {
72 DataRowView mydrv;
73 string gIntro;
74 if (GridView1.PageIndex == 0)
75 {
76 mydrv = myds.Tables["飞狐工作室"].DefaultView[i];
77 gIntro = Convert.ToString(mydrv["家庭住址"]);
78 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
79 }
80 else
81 {
82 mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
83 gIntro = Convert.ToString(mydrv["家庭住址"]);
84 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
85 }
86 }
87
88 sqlcon.Close();
89 }
90 public string SubStr(string sString, int nLeng)
91 {
92 if (sString.Length <= nLeng)
93 {
94 return sString;
95 }
96 string sNewStr = sString.Substring(0, nLeng);
97 sNewStr = sNewStr + "";
98 return sNewStr;
99 }
100 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
101 {
102 //如果是绑定数据行
103 if (e.Row.RowType == DataControlRowType.DataRow)
104 {
105 /**/////鼠标经过时，行背景色变
106 //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");
107 /**/////鼠标移出时，行背景色变
108 //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");
109 /**/////当有编辑列时，避免出错，要加的RowState判断
110 //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
111 //{
112 // ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除："" + e.Row.Cells[1].Text + ""吗?')");
113 //}
114 }
115 if (e.Row.RowIndex != -1)
116 {
117 int id = e.Row.RowIndex + 1;
118 e.Row.Cells[0].Text = id.ToString();
119 }
120 }
121}