C#简单使用winform进度条实例
1.例子
2.点击查询按钮代码
private void button8_Click(object sender, EventArgs e)
{
string orgid = string.Empty;
string scbz = string.Empty;
if (comboBox7.SelectedIndex == -1)
{
orgid = "";
}
else
{
orgid = comboBox7.SelectedItem.ToString().Substring(0, 6);
}
if (comboBox8.SelectedIndex == -1)
{
scbz = "";
}
else
{
scbz = comboBox8.SelectedItem.ToString().Substring(0, 1);
}
Det_SummaryDataContext org = new Det_SummaryDataContext();
var query = from item in org.Peo_EmployeeInfo
orderby item.StaID
where (string.IsNullOrEmpty(orgid) || item.StaID == orgid)
&& (string.IsNullOrEmpty(scbz) || item.SCBZ == scbz)
select item;
dataGridView4.DataSource = query.ToList();
label16.Text = "共" + dataGridView4.RowCount + "条数据";
progressBar1.Value = 0;//初始化进度条的值
progressBar1.Minimum = 0;
progressBar1.Maximum = dataGridView4.RowCount;//设置进度条范围
}3.点击手动上传按钮代码
private void button7_Click(object sender, EventArgs e)
{
if (dataGridView4.DataSource == null)
{
MessageBox.Show("没有需要上传的数据", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
int sumcout = 0;
int upcount = 0;
foreach (DataGridViewRow row in dataGridView4.SelectedRows)
{
sumcout += 1;
progressBar1.Value++;//动态显示进度条进度
Application.DoEvents();//处理当前在消息队列中的所有windows消息
string orgid = row.Cells["StaID"].Value.ToString();
string empid = row.Cells["EmpID"].Value.ToString();
Det_SummaryDataContext det = new Det_SummaryDataContext();
string cityid = (from sys in det.Base_SystemParameter
select sys.CityID).ToList()[0];
root r = new root();
head h = new head();
body b = new body();
string strxml = string.Empty;
string restr = string.Empty;
ServiceReference1.VeptsServiceImplClient vsc = new ServiceReference1.VeptsServiceImplClient();
int evl = 0;
var query1 = from ur in det.Peo_TUserRole
join ri in det.Peo_RoleInfo on ur.RoleID equals ri.RoleID into A
from urri in A.DefaultIfEmpty()
select new
{
UADID = ur.UADID,
RoleID = ur.RoleID,
RoleName = urri.RoleName
};
var query2 = from q in query1
join tu in det.Peo_TUserRightRelation on q.UADID equals tu.UADID into B
from qtu in B.DefaultIfEmpty()
select new
{
UADID = q.UADID,
RoleID = q.RoleID,
RoleName = q.RoleName,
EmpID = qtu.EmpID
};
var query = from q in query2
join ei in det.Peo_EmployeeInfo on q.EmpID equals ei.EmpID into C
from qei in C.DefaultIfEmpty()
where qei.EmpID == empid
select new JCZ03
{
idcardno = qei.IDNumber,
tsno = cityid + qei.StaID.Substring(4, 2),
personname = qei.EmpName,
culturegrade = qei.Educational,
workdate = qei.DivisionTime,
//1站长 2技术负责人 3质量负责人 4外检员 5登录员 6驾控员 7尾气操作员 8其他
jobduty = q.RoleID == "130100002" ? "5" : q.RoleID == "130100003" ? "7" : q.RoleID == "130100004" ? "7" : q.RoleID == "130100005" ? "6" : q.RoleID == "130100006" ? "1" : "8",
//状态（0：未审；1：在岗；2：离职，3 锁止）
state = qei.EmpState == "0" ? "1" : "2"
};
List jcz033 = query.ToList();
h.organ = Properties.Settings.Default.JKBH;
h.jkxlh = Properties.Settings.Default.JKXLH;
h.jkid = "JCZ03";
b.vehispara = jcz033[0];
r.head = h;
r.body = b;
strxml = Other.XmlSerialize(r);
Other.WriteLwLog(strxml);//打印发送日志
restr = System.Web.HttpUtility.UrlDecode(vsc.write(strxml));
Other.WriteLwLog(restr,false);//打印接受日志
if (!restr.Contains(@"1"))
{
evl += 1;
}
if (evl == 0)
{
var query3 = from item in det.Peo_EmployeeInfo
where item.StaID == orgid && item.EmpID == empid
select item;
foreach (var item in query3)
{
item.SCBZ = "O";
}
det.SubmitChanges();
upcount += 1;//上传数量 成功上传一条就自增1
}
else
{
var query3 = from item in det.Peo_EmployeeInfo
where item.StaID == orgid && item.EmpID == empid
select item;
foreach (var item in query3)
{
item.SCBZ = "E";
}
det.SubmitChanges();
}
}
MessageBox.Show(string.Format("选中{0}条数据，成功上传{1}条！", sumcout, upcount), "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
} 4.思路
首先设置processBar的范围，该范围就是要动态处理数据集的大小。
然后在foreach循环里设置进度条值自增，即processBar.Value++;
最后加上一句Application.DoEvents(); 用来刷新UI显示进度条进度。