componentart（ComponentArt treeview 怎么调用sql数据库表）

本文目录

ComponentArt treeview 怎么调用sql数据库表
c# ComponentArt:TreeView 节点怎么
请教关于componentart 三方控件的使用问题！！ - ASP.NET -
componentart grid如何导出excel （c#）
componentart 中在弹出的对话框 dialog 挡不住 grid 分页的滑块这是为什么
C#控件库,是干什么
什么是 WEBUI框架

ComponentArt treeview 怎么调用sql数据库表

连接数据库，读取信息
然后按照数据库的信息（数据库里应该有节点标识）
然后按照标识递归填充树
SqlDataAdapter proj1da = new SqlDataAdapter(“select ID,NAME,PWD from TABLE1 “ , con);
DataSet ds2 = new DataSet();
proj1da.Fill(ds2, “proj1“);
TreeNode proj1node;
foreach (DataRow proj1row in ds2.Tables.Rows)
{
proj1node = new TreeNode();
proj1node.Text = proj1row[“ID“].ToString();
proj1node.Value = proj1row[“NAME“].ToString();
projnode.ChildNodes.Add(proj1node);
}

c# ComponentArt:TreeView 节点怎么

你的问题不是很明确，要是后台想给节点绑定值，建议直接调用。
要是要在后台输出事件后直接调用，那最好的方式是给这个节点绑定JS方法，然后用你在前台写的两个跳转来实现页面的转换，
你只要把握一个原则，后台Tree在前台输出后就是由一组《a》组成的

请教关于componentart 三方控件的使用问题！！ - ASP.NET -

回复 1# 解除限制非常简单，源代码都在你手里了我以 ComponentArt Web.UI for ASP.NET 2010.1 中的 3.5 版的为例打开Project后，BaseClasses/WebControl.cs 这个类是控件这些的，把其中的 public virtual bool IsLicensed() 这个函数的函数体注释掉，改成 return true; 就OK了[ol][*]public virtual bool IsLicensed()[*]{[*]? ? //if (License != null) return true; [*]? ? //try[*]? ? //{[*]? ? //??License = LicenseManager.Validate(this.GetType(), this);[*]? ? //??return true; [*]? ? //}[*]? ? //catch[*]? ? //{[*]? ? //??return false; [*]? ? //}[*]? ? return true;[*]}[/ol]接下来就是编译喽~
-componentart

componentart grid如何导出excel （c#）

我给你段代码你试试可以不注释写的已经很清楚了。传入的参数是数据源和Excel文件的标题。不过这个是ASP.NET中用的，你可以根据自己的情况修改下
/// 《summary》
/// 导出Excel
/// 《/summary》
/// 《param name=“dt“》导出的数据表《/param》
/// 《param name=“strsql“》Excel的标题《/param》
public void OutToExcel(System.Data.DataTable dt, string strsql)
{
DataView dv = dt.DefaultView;
GC.Collect();
Excel.Application excel;// = new Application();
int rowIndex = 4;
int colIndex = 1;
_Workbook xBk;
_Worksheet xSt;
excel = new ApplicationClass();
xBk = excel.Workbooks.Add(true);
xSt = (_Worksheet)xBk.ActiveSheet;
//
//取得标题
//
foreach (DataColumn col in dv.Table.Columns)
{
colIndex++;
excel.Cells[4, colIndex] = col.ColumnName;
xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置标题格式为居中对齐
}
//
//取得表格中的数据
//
foreach (DataRowView row in dv)
{
rowIndex++;
colIndex = 1;
foreach (DataColumn col in dv.Table.Columns)
{
colIndex++;
if (col.DataType == System.Type.GetType(“System.DateTime“))
{
excel.Cells[rowIndex, colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString(“yyyy-MM-dd“);
xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置日期型的字段格式为居中对齐
}
else
if (col.DataType == System.Type.GetType(“System.String“))
{
excel.Cells[rowIndex, colIndex] = “’“ + row[col.ColumnName].ToString();
xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置字符型的字段格式为居中对齐
}
else
{
excel.Cells[rowIndex, colIndex] = row[col.ColumnName].ToString();
}
}
}
//
//加载一个合计行
//
int rowSum = rowIndex + 1;
int colSum = 2;
excel.Cells[rowSum, 2] = “合计“;
xSt.get_Range(excel.Cells[rowSum, 2], excel.Cells[rowSum, 2]).HorizontalAlignment = XlHAlign.xlHAlignCenter;
//
//设置选中的部分的颜色
//
xSt.get_Range(excel.Cells[rowSum, colSum], excel.Cells[rowSum, colIndex]).Select();
xSt.get_Range(excel.Cells[rowSum, colSum], excel.Cells[rowSum, colIndex]).Interior.ColorIndex = 19;//设置为浅黄色，共计有56种
//
//取得整个报表的标题
//
excel.Cells[2, 2] = strsql;
//
//设置整个报表的标题格式
//
xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, 2]).Font.Bold = true;
xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, 2]).Font.Size = 22;
//
//设置报表表格为最适应宽度
//
xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Select();
xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Columns.AutoFit();
//
//设置整个报表的标题为跨列居中
//
xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, colIndex]).Select();
xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, colIndex]).HorizontalAlignment = XlHAlign.xlHAlignCenterAcrossSelection;
//
//绘制边框
//
xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Borders.LineStyle = 1;
xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, 2]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//设置左边线加粗
xSt.get_Range(excel.Cells[4, 2], excel.Cells[4, colIndex]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//设置上边线加粗
xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[rowSum, colIndex]).Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;//设置右边线加粗
xSt.get_Range(excel.Cells[rowSum, 2], excel.Cells[rowSum, colIndex]).Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//设置下边线加粗
excel.Visible = true;
//xSt.Export(Server.MapPath(“.“)+“\\“+this.xlfile.Text+“.xls“,SheetExportActionEnum.ssExportActionNone,Microsoft.Office/’》Office.Interop.OWC.SheetExportFormat.ssExportHTML);
xBk.SaveCopyAs(Server.MapPath(“.“) + “\\“ + this.ddlSurveyno.SelectedItem.Text.ToString() + “.xls“);
dv = null;
xBk.Close(false, null, null);
excel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk);
System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt);
xBk = null;
excel = null;
xSt = null;
GC.Collect();
string path = Server.MapPath(this.ddlSurveyno.SelectedItem.Text.ToString() + “.xls“);
System.IO.FileInfo file = new System.IO.FileInfo(path);
Response.Clear();
Response.Charset = “GB2312“;
Response.ContentEncoding = System.Text.Encoding.UTF8;
// 添加头信息，为“文件下载/另存为“对话框指定默认文件名
Response.AddHeader(“Content-Disposition“, “attachment; filename=“ + Server.UrlEncode(file.Name));
// 添加头信息，指定文件大小，让浏览器能够显示下载进度
Response.AddHeader(“Content-Length“, file.Length.ToString());
// 指定返回的是一个不能被客户端读取的流，必须被下载
Response.ContentType = “application/ms-excel“;
// 把文件流发送到客户端
Response.WriteFile(file.FullName);
// 停止页面的执行
Response.End();
}
-数据库

componentart 中在弹出的对话框 dialog 挡不住 grid 分页的滑块这是为什么

定义grid的层次，因为对话框的层位于grid之下，所以才会被挡住。
补充：
要改控件的话，只能打开那个控件的工程去改了。

C#控件库,是干什么

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-componentart

什么是 WEBUI框架

你好，很高兴为你解答

Web 应用框架，或者简单的说是“Web 框架”，其实是建立 web 应用的一种方式。

web框架使得在进行web应用开发的时候，减少了工作量。web框架主要用于动态网络开发，动态网络主要是指现在的主要的页面，可以实现数据的交互和业务功能的完善。

例如，

最简单的web应用代码：

import socket
HOST = ’’PORT = 80listen_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
listen_socket.bind((HOST, PORT))
listen_socket.listen(1)
connection, address = listen_socket.accept()
request = connection.recv(1024)
connection.sendall(“““HTTP/1.1 200 OKContent-type: text/html《html》《body》《h1》Hello, World!《/h1》《/body》《/html》“““)
connection.close()

(如果上面的代码不能运行，尝试把端口号(PORT)更换为8080)-数据库

希望对你有帮助

电脑数码网

Nice to meet you, too!

componentart 数据库