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Asp.net--GridView控件--(1)高亮显示当前所在行,(2)高亮显示单击行,(3)绑定数据库数据,(4)分页,(5)导出到excel表格,(6)首列插入序号...

2020-02-01 00:09 866 查看

//本页代码中的DB类及方法在http://www.cnblogs.com/Deerjiadelu/p/7252769.html中能查询到

(1)Asp.net--GridView控件--高亮显示当前所在行

protected void gvquery_DataBound(object sender, GridViewRowEventArgs e)
{
//高亮显示光标所在行
if (e.Row.RowType == DataControlRowType.DataRow)//判断当前行是不是数据绑定行
{
e.Row.Attributes.Add("onmouseover", "currentcolor=this.style.backgroundColor;this.style.backgroundColor='#6495ED'");
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=currentcolor;");

}

}

(2).net--GridView控件--高亮显示单击行

protected override void Render(System.Web.UI.HtmlTextWriter writer)
{
foreach (GridViewRow gvr in this.gvquery.Rows)//高亮显示选择行
{
if (gvr.RowType != DataControlRowType.DataRow) return;
if (gvr.RowState.HasFlag(DataControlRowState.Selected) == false)
{
gvr.Attributes.Add("style", "background-color:none");
gvr.Attributes["onclick"] = ClientScript.GetPostBackClientHyperlink(this.gvquery, "Select$" + gvr.RowIndex, true);
}//ondblclick双击
else
{
gvr.Attributes.Add("style", "background-color:#F7CE90;");
}
}
base.Render(writer);
}

(3)Asp.net--GridView控件--绑定数据库数据

protected void Page_Load(object sender, EventArgs e)
{
gvDataInit();//gv绑定数据
}

 

public void gvDataInit()//绑定gv数据
{
//获取查询条件
string strsid = this.tbsmid.Text.Trim();
string strsname = this.tbsmname.Text.Trim();
string strsex = this.ddlsmsex.SelectedValue.ToString().Trim();
if (strsex == "不限")
{
strsex = "";
}
string strage = this.tbsmage.Text.Trim();
string strprovince = this.ddlsmprovince.SelectedValue.ToString().Trim();
if (strprovince == "不限")
{
strprovince = "";
}
string streducation = this.ddlsmeducation.SelectedValue.ToString().Trim();
if (streducation == "不限")
{
streducation = "";
}
string strgraduation = this.tbsmgraduation.Text.Trim();

DB db = new DB();
string strtitle = "sid as 工号,sname as 姓名,sex as 性别,age as 年龄,province as 省份,education as 学历,graduation as 毕业院校,lmdate as 维护日期,lmtime as 维护时间,lmuser as 维护人";

//模糊条件查询--当条件为空时忽略此项属性
string strcontion = "(sid='" + strsid + "' or '" + strsid + "' ='')and (sname=N'" + strsname + "' or '" + strsname + "'='')and(sex=N'" + strsex + "' or '" + strsex + "'='')and(age='" + strage + "' or '" + strage + "'='')and(province=N'" + strprovince + "' or '" + strprovince + "'='')and(education=N'" + streducation + "' or '" + streducation + "'='') and (graduation like N'%" + strgraduation + "%' or '" + strgraduation + "'='')and(active='Y')";
string str = "select " + strtitle + " from staffInfo  where " + strcontion + "";
if (db.sqlEx(str) == 1)
{
this.gvquery.DataSource = db.reDt(str);
this.gvquery.DataBind();
if (this.gvquery.Rows.Count == 0)
Response.Write("<script>alert('查无此人!请重新输入查询条件!');location='StaffManage.aspx'</script>");

}
}

(4)Asp.net--GridView控件--分页

添加三个属性:

AllowPaging="true"

PageSize="10"
onpageindexchanging="gvquery_PageIndexChanging"

protected void gvquery_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
gvquery.PageIndex = e.NewPageIndex;
gvDataInit();
}

 (5)Asp.net--GridView控件--导出到excel表格

protected void btsmexcel_Click(object sender, EventArgs e)//导出
{
gvquery.AllowPaging = false;
gvDataInit();
Response.Clear();
Response.AddHeader("content-disposition", "attachment;filename=filename.xls");
Response.Charset = "gb2312";
Response.ContentType = "application/vnd.xls";
System.IO.StringWriter strWt = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htw = new HtmlTextWriter(strWt);
gvquery.RenderControl(htw);
Response.Write(strWt.ToString());
Response.Flush();
Response.End();
gvquery.AllowPaging = true;
gvDataInit();
}

public override void VerifyRenderingInServerForm(Control control)//excel 必须重载此方法
{
//gridwiew必须放在具有 runat=server 的窗体标记内
//确保该控件显示在 HtmlForm 控件的开始和结束标记之间
}

(6)Asp.net--GridView控件--首列插入序号

protected void gvquery_DataBound(object sender, GridViewRowEventArgs e)
{

if (e.Row.RowIndex >= 0)//序号
{
e.Row.Cells[0].Text = Convert.ToString(e.Row.DataItemIndex + 1);

}

}

 

转载于:https://www.cnblogs.com/Deerjiadelu/p/7252901.html

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