我有一个datagridview,并且有很多行。加载需要很长时间。而且我想在加载时添加progressbar。如何在我的代码中添加带有Manquee样式的Progressbar。(P.S.:我不知道我的datagridview的行数,每次都会改变。)
这是我的代码;
conection.Open();
string[] ss = listBox2.SelectedItem.ToString().Split(' ');
int countss = ss.Count();
for (int mi = 0; mi < countss; mi++)
{
string mq = "select c1, c2, c3 from myTableName WHERE c1='" + ss[mi] + "' OR c2='" + ss[mi] + "'";
SqlDataAdapter s = new SqlDataAdapter(mq, connection);
DataTable d = new DataTable();
s.Fill(d);
foreach (DataRow r in d.Rows)
{
dgv1.Rows.Add(r["c1"].ToString() + " " + r["c2"].ToString(), r["c3"]);
}
}
//Some insignificant operations...
for (int mi2 = 0; mi2 < cmn; mi2++)
{
string mq2 = "select c1, c2, c3 from myTableName WHERE c1='" + cmn[mi2] + "' OR c2='" + cmn[mi2] + "'";
SqlDataAdapter s2 = new SqlDataAdapter(mq2, conection);
DataTable d2 = new DataTable();
s2.Fill(d2);
foreach (DataRow r2 in d2.Rows)
{
dgv2.Rows.Add(r2["c1"].ToString() + " " + r2["c2"].ToString(), r2["c3"]);
}
}
coneciton.Close();
private void button1_Click(object sender, EventArgs e)
{
DataTable g = new DataTable();
int rowCount = g.Rows.Count;
Progress_tracker pForm = new Progress_tracker();
pForm.Show();
int rCount =0;
foreach (DataRow r in g.Rows)
{
//do somethin
pForm.progressBar1.Value = 100*rCount++ / rowCount;
}
}
这是有关如何更新
的代码示例private void InitializeComponent()
{
this.progressBar1 = new System.Windows.Forms.ProgressBar();
this.SuspendLayout();
//
// progressBar1
//
this.progressBar1.Location = new System.Drawing.Point(37, 64);
this.progressBar1.Name = "progressBar1";
this.progressBar1.Size = new System.Drawing.Size(354, 23);
this.progressBar1.TabIndex = 0;
//
// Progress_tracker
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(530, 154);
this.Controls.Add(this.progressBar1);
this.Name = "Progress_tracker";
this.Text = "Progress_tracker";
this.ResumeLayout(false);
}
这是ProgressTracker窗口的设计师代码,它只有一个控制进度栏,请记住将其修改器公开保持公开,以便您可以在班级外访问它,即通过Main Form