C# 从SqlDataSource/GridView生成CSV文件
我需要能够在用户单击按钮时生成从SqlDataSource/GridView返回的结果的基本CSV文件,然后允许他们保存此文件 这简单吗C# 从SqlDataSource/GridView生成CSV文件,c#,asp.net,gridview,sqldatasource,C#,Asp.net,Gridview,Sqldatasource,我需要能够在用户单击按钮时生成从SqlDataSource/GridView返回的结果的基本CSV文件,然后允许他们保存此文件 这简单吗 感谢您提供GridView,您可以使用: StreamWriter writer = new StreamWriter("file.csv"); // Write columns writer.Write(myGridView.Columns[0].HeaderText);
感谢您提供GridView,您可以使用:
StreamWriter writer = new StreamWriter("file.csv");
// Write columns
writer.Write(myGridView.Columns[0].HeaderText);
for (int i = 1; i < myGridView.Columns.Count; i++)
writer.Write("," + myGridView.Columns[i].HeaderText);
writer.Write("\n");
// Write values
for (int x = 0; x < myGridView.Rows.Count; x++)
{
writer.Write(myGridView.Rows[x].Cells[0].Text);
for (int i = 1; i < myGridView.Rows[x].Cells.Count; i++)
writer.Write("," + myGridView.Rows[x].Cells[i].Text);
writer.Write("\n");
}
writer.Close();
StreamWriter writer=newstreamwriter(“file.csv”);
//写专栏
writer.Write(myGridView.Columns[0].HeaderText);
对于(int i=1;i
对于GridView,您可以使用:
StreamWriter writer = new StreamWriter("file.csv");
// Write columns
writer.Write(myGridView.Columns[0].HeaderText);
for (int i = 1; i < myGridView.Columns.Count; i++)
writer.Write("," + myGridView.Columns[i].HeaderText);
writer.Write("\n");
// Write values
for (int x = 0; x < myGridView.Rows.Count; x++)
{
writer.Write(myGridView.Rows[x].Cells[0].Text);
for (int i = 1; i < myGridView.Rows[x].Cells.Count; i++)
writer.Write("," + myGridView.Rows[x].Cells[i].Text);
writer.Write("\n");
}
writer.Close();
StreamWriter writer=newstreamwriter(“file.csv”);
//写专栏
writer.Write(myGridView.Columns[0].HeaderText);
对于(int i=1;i
因为您使用的是SqlDataSource,所以您可以像这样从中获取数据表:
var dv = new DataView();
var dt = new DataTable();
dv = (DataView)mySQLDataSource.Select(DataSourceSelectArguments.Empty);
dt = dv.ToTable();
我写了一套,你应该可以很容易地使用
接下来的代码将非常简单:
var csv = dt.ToCSV();
下面是一个使用这种方法的完整示例
标记:
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
CodeBehind="Default.aspx.cs" Inherits="SO.WebUI._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="EmployeeId"
DataSourceID="SqlDataSourceLocal">
<Columns>
<asp:BoundField DataField="EmployeeId" HeaderText="EmployeeId" InsertVisible="False"
ReadOnly="True" SortExpression="EmployeeId" Visible="False" />
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" />
<asp:BoundField DataField="Birthdate" HeaderText="Birthdate" SortExpression="Birthdate" />
</Columns>
</asp:GridView>
<!-- This is the button to export CSV! -->
<asp:Button ID="btnToCSV" runat="server" Text="Export to CSV" OnClick="GetCSV" />
<asp:SqlDataSource ID="SqlDataSourceLocal" runat="server"
ConnectionString="<%$ ConnectionStrings:StackOverflowExamplesConnectionString %>"
SelectCommand="SELECT * FROM [Employee]"></asp:SqlDataSource>
</asp:Content>
好了。这里唯一没有包括的是扩展方法源,但是因为我已经链接到它,所以将其放入静态类应该没有问题。因为您使用的是SqlDataSource,所以您可以像这样从中获取数据表:
var dv = new DataView();
var dt = new DataTable();
dv = (DataView)mySQLDataSource.Select(DataSourceSelectArguments.Empty);
dt = dv.ToTable();
我写了一套,你应该可以很容易地使用
接下来的代码将非常简单:
var csv = dt.ToCSV();
下面是一个使用这种方法的完整示例
标记:
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
CodeBehind="Default.aspx.cs" Inherits="SO.WebUI._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="EmployeeId"
DataSourceID="SqlDataSourceLocal">
<Columns>
<asp:BoundField DataField="EmployeeId" HeaderText="EmployeeId" InsertVisible="False"
ReadOnly="True" SortExpression="EmployeeId" Visible="False" />
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" />
<asp:BoundField DataField="Birthdate" HeaderText="Birthdate" SortExpression="Birthdate" />
</Columns>
</asp:GridView>
<!-- This is the button to export CSV! -->
<asp:Button ID="btnToCSV" runat="server" Text="Export to CSV" OnClick="GetCSV" />
<asp:SqlDataSource ID="SqlDataSourceLocal" runat="server"
ConnectionString="<%$ ConnectionStrings:StackOverflowExamplesConnectionString %>"
SelectCommand="SELECT * FROM [Employee]"></asp:SqlDataSource>
</asp:Content>
好了。这里唯一没有包括的是扩展方法源代码,但由于我已经链接到它,所以将其放入静态类应该没有问题。私有void按钮13\u单击(对象发送者,事件参数)//导出到.csv { //OnExportGridToCSV()
StreamWriter writer=newstreamwriter(“C:\\scripts\\file.csv”);
//写专栏
writer.Write(dataGridView1.Columns[0].HeaderText);
对于(int i=1;i
私有无效按钮13\u单击(对象发送者,事件参数)//导出到.csv
{
//OnExportGridToCSV()
StreamWriter writer=newstreamwriter(“C:\\scripts\\file.csv”);
//写专栏
writer.Write(dataGridView1.Columns[0].HeaderText);
对于(int i=1;i
您是真的想要.csv,还是因为电子表格太复杂而满足于.csv?您真的想要.csv,还是因为电子表格太复杂而满足于.csv?