private void btn_save_Click(object sender, System.EventArgs e)
{
if (this.tb_flowName.Text.Length < 0)
{
MessageForm.Show("文件名不能为空。");
this.tb_flowName.Focus();
return;
}
else if (this.tb_flowName.Text.Length > 20)
{
MessageForm.Show("文件名过长。");
this.tb_flowName.Focus();
return;
}
int p = tb_flowName.Text.LastIndexOf(".");
if (p < 0 || tb_flowName.Text.Substring(p).ToUpper() != ".XML")
{
tb_flowName.Text += ".xml";
}
foreach (ListViewItem temp in lv_flowView.Items)
{
if (temp.Text == this.tb_flowName.Text)
{
DialogResult dr = MessageForm.Show("文件名己存在,是否覆盖己有文件", ButtonType.YesAndNo);
if (dr == DialogResult.Yes)
{
this.FileName = this.tb_flowName.Text;
this.SaveOperate = "Save";
this.DialogResult = DialogResult.OK;
}
else
{
return;
}
break;
}
}
this.FileName = this.tb_flowName.Text;
this.SaveOperate = "Save";
this.DialogResult = DialogResult.OK;
}
/// <summary>
/// 改变节点的类型
/// </summary>
public bool ChangeNodeType()
{
if (this.cb_nodeType.Text != DrawObject.getDefaultText(node.ObjectType))
{
if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawNodeGeneral))
{
if (this.control.drawObject.i_GeneralCount >= 20)
{
MessageForm.Show("对不起，您目前选择的节点限制为20个.", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawNodeBegin))
{
if (this.control.drawObject.bStartFlag)
{
MessageForm.Show("对不起，开始节点创建受限制。", "DrawFlow");
return(true);
}
else if (this.node.ConnectInCount > 0)
{
MessageForm.Show("您要更改的节点的不满足转为开始节点的要求，开始节点没有前驱,有多个后继 .", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawNodeEnd))
{
if (this.control.drawObject.bStartFlag)
{
MessageForm.Show("对不起，结束节点创建受限制。", "DrawFlow");
return(true);
}
else if (this.node.ConnectOutCount > 0)
{
MessageForm.Show("您要更改的节点的不满足转为结束节点的要求，结束节点有多个前驱,没有后继。", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawAsunder))
{
if (this.node.ConnectInCount > 1)
{
MessageForm.Show("您要更改的节点的不满足转为分支节点的要求，分支节点只有一个前驱,有多个后继。", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawConverge))
{
if (this.node.ConnectOutCount > 1)
{
MessageForm.Show("您要更改的节点的不满足转为汇聚节点的要求，汇聚节点有多个前驱,只有一个后继。", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawDataNode))
{
if (this.node.ConnectInCount > 0)
{
MessageForm.Show("您要更改的节点的不满足转为数据节点的要求，数据节点没有前驱,有多个后继。", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawGather))
{
if (this.node.ConnectOutCount > 1)
{
MessageForm.Show("您要更改的节点的不满足转为汇总节点的要求，汇总节点有多个前驱,只有一个后继。", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawGradation))
{
if (this.node.ConnectInCount > 1 || this.node.ConnectOutCount > 1)
{
MessageForm.Show("您要更改的节点的不满足转为顺序节点的要求，顺序节点只有一个前驱,只有一个后继。", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawSpecificallyOperation))
{
if (this.node.ConnectInCount > 1 || this.node.ConnectOutCount > 0)
{
MessageForm.Show("您要更改的节点的不满足转为特定操作节点的要求，特定操作节点只有一个前驱,没有后继。", "DrawFlow");
return(true);
}
}
else if (this.cb_nodeType.Text == DrawObject.getDefaultText(Node.DrawObjectType.DrawSynchronization))
{
if (this.node.ConnectInCount > 2 || this.node.ConnectOutCount > 1)
{
MessageForm.Show("您要更改的节点的不满足转为同步节点的要求，同步节点只有两个前驱,有一个后继。", "DrawFlow");
return(true);
}
}
switch (this.cb_nodeType.Text)
{
case "开始": node.ObjectType = Node.DrawObjectType.DrawNodeBegin; this.control.drawObject.bStartFlag = true; break;
case "任务": node.ObjectType = Node.DrawObjectType.DrawNodeGeneral; this.control.drawObject.i_GeneralCount++; break;
case "特定操作": node.ObjectType = Node.DrawObjectType.DrawSpecificallyOperation; break;
case "顺序": node.ObjectType = Node.DrawObjectType.DrawGradation; break;
case "同步": node.ObjectType = Node.DrawObjectType.DrawSynchronization; break;
case "分支": node.ObjectType = Node.DrawObjectType.DrawAsunder; break;
case "汇聚": node.ObjectType = Node.DrawObjectType.DrawConverge; break;
case "汇总连接": node.ObjectType = Node.DrawObjectType.DrawGather; break;
case "判断": node.ObjectType = Node.DrawObjectType.DrawJudgement; break;
case "应用数据": node.ObjectType = Node.DrawObjectType.DrawDataNode; break;
case "结束": node.ObjectType = Node.DrawObjectType.DrawNodeEnd; this.control.drawObject.bEndFlag = true; break;
case "矩形": node.ObjectType = Node.DrawObjectType.DrawRectangle; break;
case "椭圆形": node.ObjectType = Node.DrawObjectType.DrawEllipse; break;
}
}
return(false);
}
public void ShowForm(string str)
{
MessageForm.Show(str);
}