public MyComboBox()
{
_dropDown = new MyDropDown()
{
Width = 200, Height = 200
};
}
protected void Page_PreRender(object sender, EventArgs e)
{
// insert into the drop down the user listItem
MyDropDown.Items.Clear();
foreach (ListItem listItem in ListItems)
{
MyDropDown.Items.Add(listItem);
}
if (!hasDataSource)
{
if (tableName != "")
{
using (MySqlConnection conn = new MySqlConnection(ConnStr))
{
string sql = String.Format("Select {0},{1} From {2} {3} ", this.DataTextField, DataValueField, this.tableName, this.dataOrderField == "" ? "" : "Order By " + this.dataOrderField);
MySqlDataAdapter da = new MySqlDataAdapter(sql, conn);
DataSet ds = new DataSet();
da.Fill(ds, "dropDown");
MyDropDown.DataSource = ds.Tables["dropDown"].DefaultView;
MyDropDown.DataBind();
}
}
}
else
{
MyDropDown.DataBind();
}
TextBoxHolderDiv.Attributes["class"] = this.cssClass;
string mySelected = DataFieldValue;
string a = SelectedValue;
if (!String.IsNullOrEmpty(mySelected) && MyDropDown.Items.FindByValue(mySelected) != null)
{
MyDropDown.SelectedItem.Selected = false;
for (int i = 0; i < MyDropDown.Items.Count; i++)
{
MyDropDown.Items[i].Selected = false;
if (MyDropDown.Items[i].Value == mySelected)
{
MyDropDown.Items[i].Selected = true;
myspan.InnerText = MyDropDown.Items[i].Text;
MyHiddenField.Value = MyDropDown.Items[i].Text;
MyHiddenFieldVlaue.Value = MyDropDown.Items[i].Value;
}
}
}
else
{
for (int i = 0; i < MyDropDown.Items.Count; i++)
{
if (MyDropDown.Items[i].Selected)
{
myspan.InnerText = MyDropDown.Items[i].Text;
MyHiddenField.Value = MyDropDown.Items[i].Text;
MyHiddenFieldVlaue.Value = MyDropDown.Items[i].Value;
}
}
}
MyDropDown.Attributes.Add("onchange", "javascript:document.getElementById('" + myspan.ClientID + "').innerHTML=this.options[this.selectedIndex].text;document.getElementById('" + MyHiddenField.ClientID + "').value=this.options[this.selectedIndex].text;document.getElementById('" + MyHiddenFieldVlaue.ClientID + "').value=this.options[this.selectedIndex].value;" + onClientSelectedChanged);
}
private void InitPrint()
{
//加载打印名称
if (ddlPrintName == null)
{
ddlPrintName = new MyDropDown(pal_Print_Box, new Point(151, 27), "setPrint_Name", toolTip1);
string Prints = string.Empty;
foreach (string pName in PrinterSettings.InstalledPrinters)
{
Prints += pName + ";";
}
ddlPrintName.Items = Prints.TrimEnd(';').Split(';');
ddlPrintName.Draw();
}
string tmp_PrintName = iniClass.IniReadValue("Print", "Name");
ddlPrintName.SelectItem = tmp_PrintName;
//加载打印联数
if (ddlPrintJoint == null)
{
string tmp_PrintJointEnum = iniClass.IniReadValue("Print", "JointEnum");
ddlPrintJoint = new MyDropDown(pal_Print_Box, new Point(151, 83), "setPrint_Joint", toolTip1);
ddlPrintJoint.Items = tmp_PrintJointEnum.Split(';');
ddlPrintJoint.Draw();
}
string tmp_PrintJoint = iniClass.IniReadValue("Print", "JointValue");
ddlPrintJoint.SelectItem = tmp_PrintJoint;
//加载是否开启打印
bool tmp_IsOpenPrint = bool.Parse(iniClass.IniReadValue("Print", "OpenPrint"));
if (tmp_IsOpenPrint)
{
ptb_Print_IsOpen.Image = System.Drawing.Image.FromFile("Image/sys_icon_on.png");
}
else
{
ptb_Print_IsOpen.Image = System.Drawing.Image.FromFile("Image/sys_icon_off.png");
}
ptb_Print_IsOpen.Tag = tmp_IsOpenPrint;
}
public void DataBind()
{
MyDropDown.DataBind();
}