protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (!string.IsNullOrEmpty(Request.QueryString["FlowID"]))
{
int flowId = Convert.ToInt32(Request.QueryString["FlowID"]);
using (WorkFlowContext context = new WorkFlowContext(connectionString))
{
var flowViews = context.FlowViews.Where(f => f.FlowID == flowId).Select(f => f);
if (flowViews.Count() == 0)
{
this.txtNodeId.Text = "1";
}
else
{
int nId = context.FlowViews.Where(f => f.FlowID == flowId).OrderByDescending(f => f.ID).FirstOrDefault().NodeId;
this.txtNodeId.Text = Convert.ToString(nId + 1);
}
var flowList = context.FlowViews.Where(f => f.FlowID == flowId).Select(f => new
{
FlowValue = f.NodeId,
FlowText = f.NodeId + "," + f.NodeName
});
this.ListBox1.DataSource = flowList;
this.ListBox1.DataTextField = "FlowText";
this.ListBox1.DataValueField = "FlowValue";
this.ListBox1.DataBind();
}
}
}
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(Request.QueryString["FlowID"]))
{
int left = 11;
int top = 50;
int flowId = Convert.ToInt32(Request.QueryString["FlowID"]);
int lastLeft = 0;
int lastTop = 0;
using (WorkFlowContext context = new WorkFlowContext(connectionString))
{
var flowViews = context.FlowViews.Where(f => f.FlowID == flowId).Select(f => f);
if (flowViews.Count() == 0)
{
FlowView flowView = new FlowView()
{
FlowID = flowId,
NodeId = Convert.ToInt32(this.txtNodeId.Text.Trim()),
NodeType = Convert.ToInt32(this.ddlNodeType.SelectedItem.Value),
NodeName = this.txtNodeName.Text.Trim(),
Left = left,
Top = top,
NextStep = Convert.ToString(Convert.ToInt32(this.txtNodeId.Text.Trim()) + 1),
NodeDescription = ""
};
context.FlowViews.InsertOnSubmit(flowView);
context.SubmitChanges();
}
else if (flowViews.Count() == 1)
{
StringBuilder builder = new StringBuilder();
if (ListBox2.Items.Count == 0)
{
builder.Append(Convert.ToInt32(this.txtNodeId.Text) + 1);
}
else
{
builder.Append((Convert.ToInt32(this.txtNodeId.Text) + 1) + ",");
foreach (ListItem item in ListBox2.Items)
{
builder.Append(item.Value + ",");
}
builder.ToString().TrimEnd(',');
}
FlowView flowView = new FlowView()
{
FlowID = flowId,
NodeId = Convert.ToInt32(this.txtNodeId.Text.Trim()),
NodeType = Convert.ToInt32(this.ddlNodeType.SelectedItem.Value),
NodeName = this.txtNodeName.Text.Trim(),
Left = 20,
Top = 230,
NextStep = builder.ToString().TrimEnd(','),
NodeDescription = ""
};
context.FlowViews.InsertOnSubmit(flowView);
context.SubmitChanges();
}
else if (flowViews.Count() + 1 >= 3)
{
var lastRow = context.FlowViews.Where(f => f.FlowID == flowId).OrderByDescending(f => f.ID).FirstOrDefault();
lastLeft = lastRow.Left;
lastTop = lastRow.Top;
if ((flowViews.Count() + 1) % 2 == 0)
{
StringBuilder builder = new StringBuilder();
if (ListBox2.Items.Count == 0)
{
builder.Append(Convert.ToInt32(this.txtNodeId.Text) + 1);
}
else
{
builder.Append((Convert.ToInt32(this.txtNodeId.Text) + 1) + ",");
foreach (ListItem item in ListBox2.Items)
{
builder.Append(item.Value + ",");
}
builder.ToString().TrimEnd(',');
}
FlowView flowView = new FlowView()
{
FlowID = flowId,
NodeId = Convert.ToInt32(this.txtNodeId.Text.Trim()),
NodeType = Convert.ToInt32(this.ddlNodeType.SelectedItem.Value),
NodeName = this.txtNodeName.Text.Trim(),
Left = lastLeft,
Top = lastTop + 180,
NextStep = builder.ToString().TrimEnd(','),
NodeDescription = ""
};
context.FlowViews.InsertOnSubmit(flowView);
context.SubmitChanges();
}
else
{
StringBuilder builder = new StringBuilder();
if (ListBox2.Items.Count == 0)
{
builder.Append(Convert.ToInt32(this.txtNodeId.Text) + 1);
}
else
{
builder.Append((Convert.ToInt32(this.txtNodeId.Text) + 1) + ",");
foreach (ListItem item in ListBox2.Items)
{
builder.Append(item.Value + ",");
}
}
FlowView flowView = new FlowView()
{
FlowID = flowId,
NodeId = Convert.ToInt32(this.txtNodeId.Text.Trim()),
NodeType = Convert.ToInt32(this.ddlNodeType.SelectedItem.Value),
NodeName = this.txtNodeName.Text.Trim(),
Left = lastLeft + 180,
Top = 50,
NextStep = builder.ToString().TrimEnd(','),
NodeDescription = ""
};
context.FlowViews.InsertOnSubmit(flowView);
context.SubmitChanges();
}
}
}
Response.Write("<script language='javascript'>alert('添加成功');window.opener.location.replace(opener.location);window.close();</script>");
}
}