【收集】DataGrid 编辑 修改XML文件
找了好九总算找到了一个可以直接编辑修改XML文件的例子，现在的.NET2.0使用的GridView可以显示XML但是似乎无法编辑和修改XML文件，之前在“留下点什么”的博客中看到了个例子只能做到添加但是无法删除修改节点，还好找到了一个，记录在此：
index.aspx
1
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">2
<%@ Import Namespace="System" %>3
<%@ Import Namespace="System.Net" %>4
<%@ Import Namespace="System.IO" %>5
<%@ Import Namespace="System.Xml" %>6
<%@ Import Namespace="System.Data" %>7
<%@ Import Namespace="System.Web.Security " %>8
<html xmlns="http://www.w3.org/1999/xhtml">9
<head>10
<title>修改添加XML结点</title>11
<link href="../css/css.css" rel="stylesheet" />12
13
<script language="C#" runat="Server"> 14
DataSet ds;15
DataView dv;16
FileStream fout;17
FileStream fin;18
string SortField;19
string sPath;20
string datafile;21
ICollection CreateDataSource()22
{23
sPath = Server.MapPath("key.xml");24
try25
{26
ds = new DataSet();27
fout = new FileStream(sPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);28
ds.ReadXml(fout, XmlReadMode.InferSchema);29
fout.Close();30
dv = ds.Tables[0].DefaultView;31
dv.Sort = "redirect ASC";32
}33
catch (Exception edd)34
{35
Label1.Text = "不能读出XML文件，因为 " + edd.ToString();36
}37
return dv;38
}39
public void Page_Load(Object src, EventArgs e)40
{41
if (!IsPostBack)42
{43
BindGrid();44
}45
CreateDataSource();46
AddItem.Visible = false;47
}48
public void BindGrid()49
{50
MyDataGrid.DataSource = CreateDataSource();51
MyDataGrid.DataBind();52
}53
public void PanelShow(Object sender, EventArgs e)54
{55
vi.Visible = false;56
AddItem.Visible = true;57
Label1.Text = "";58
}59
public void AddItem_Click(Object sender, EventArgs e)60
{61
datafile = "key.xml";62
if (redirect.Text == "")63
{64
Label1.Text = "文件名不能为空！";65
AddItem.Visible = true;66
}67
else68
{69
try70
{71
Label1.Text = "";72
fout = new FileStream(Server.MapPath(datafile), FileMode.Open, FileAccess.Read, FileShare.ReadWrite);73
DataSet ds = new DataSet();74
ds.ReadXml(fout, XmlReadMode.InferSchema);75
fout.Close();76
DataRow newRow = ds.Tables[0].NewRow();77
newRow["redirect"] = redirect.Text;78
newRow["user"] = FormsAuthentication.HashPasswordForStoringInConfigFile(user.Text, "MD5");79
newRow["pass"] = FormsAuthentication.HashPasswordForStoringInConfigFile(user.Text, "MD5");80
ds.Tables[0].Rows.Add(newRow);81
fin = new FileStream(Server.MapPath(datafile), FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);82
ds.WriteXml(fin, XmlWriteMode.WriteSchema);83
fin.Close();84
Label1.Text = "";85
redirect.Text = "";86
user.Text = "";87
pass.Text = "";88
}89
catch (Exception edd)90
{91
Label1.Text = "不能写入XML文件，因为 " + edd.ToString();92
}93
vi.Visible = true;94
AddItem.Visible = false;95
BindGrid();96
}97
}98
void reset_Click(Object sender, EventArgs e)99
{100
redirect.Text = "";101
user.Text = "";102
pass.Text = "";103
vi.Visible = true;104
AddItem.Visible = false;105
}106
public void MyDataGrid_Delete(Object sender, DataGridCommandEventArgs e)107
{108
if (((LinkButton)e.CommandSource).CommandName == "del")109
{110
int row = (int)e.Item.ItemIndex;111
dv.Delete(row);112
fin = new FileStream(Server.MapPath("key.xml"), FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);113
ds.WriteXml(fin, XmlWriteMode.WriteSchema);114
fin.Close();115
BindGrid();116
}117
}118
public void MyDataGrid_Edit(Object sender, DataGridCommandEventArgs e)119
{120
MyDataGrid.EditItemIndex = (int)e.Item.ItemIndex;121
BindGrid();122
}123
124
public void MyDataGrid_Cancel(Object sender, DataGridCommandEventArgs e)125
{126
MyDataGrid.EditItemIndex = -1;127
BindGrid();128
}129
130
public void MyDataGrid_Update(Object sender, DataGridCommandEventArgs e)131
{132
string redirect = e.Item.Cells[2].Text;133
string user = ((TextBox)e.Item.Cells[3].Controls[0]).Text;134
string pass = ((TextBox)e.Item.Cells[4].Controls[0]).Text;135
dv.RowFilter = "redirect='" + redirect + "'";136
if (dv.Count > 0)137
{138
dv.Delete(0);139
}140
dv.RowFilter = "";141
DataRow newRow = ds.Tables[0].NewRow();142
newRow["redirect"] = redirect;143
newRow["user"] = FormsAuthentication.HashPasswordForStoringInConfigFile(user, "MD5");144
newRow["pass"] = FormsAuthentication.HashPasswordForStoringInConfigFile(pass, "MD5");145
ds.Tables[0].Rows.Add(newRow);146
fin = new FileStream(Server.MapPath("key.xml"), FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);147
ds.WriteXml(fin, XmlWriteMode.WriteSchema);148
fin.Close();149
MyDataGrid.EditItemIndex = -1;150
BindGrid();151
} 152
</script>153
154
</head>155
<body>156
<center>157
<br>158
<form id="form1" runat="server">159
<br>160
<asp:DataGrid ID="MyDataGrid" runat="server" AllowPaging="false" BorderColor="black"161
BorderWidth="1" CellPadding="3" Width="720" Font-Name="Verdana" Font-Size="8pt"162
HeaderStyle-BackColor="#aaaadd" AlternatingItemStyle-BackColor="#eeeeee" OnItemCommand="MyDataGrid_Delete"163
OnEditCommand="MyDataGrid_Edit" OnCancelCommand="MyDataGrid_Cancel" OnUpdateCommand="MyDataGrid_Update"164
AutoGenerateColumns="false" DataKeyField="redirect">165
<Columns>166
<asp:ButtonColumn HeaderText="删除" Text="删除" CommandName="del" />167
<asp:EditCommandColumn EditText="编辑" CancelText="取消" UpdateText="更新" ItemStyle-Wrap="false"168
HeaderText="编辑数据" HeaderStyle-Wrap="false" />169
<asp:BoundColumn HeaderText="文件" ReadOnly="true" DataField="redirect" />170
<asp:BoundColumn HeaderText="用户名" DataField="user" ItemStyle-HorizontalAlign="center" />171
<asp:BoundColumn HeaderText="口令" DataField="pass" ItemStyle-HorizontalAlign="center" />172
</Columns>173
</asp:DataGrid><br />174
<hr width="720" color="#FF9933" />175
<table width="720" border="0" cellspacing="0" cellpadding="1">176
<tr bgcolor="#aaaadd">177
<td align="center" valign="middle">178
<asp:LinkButton ID="vi" Text='添加新条目' OnClick="PanelShow" runat="server" /></td>179
</tr>180
</table>181
<asp:Panel ID="AddItem" runat="server" Visible="false">182
<table width="720" border="0" cellspacing="0" cellpadding="1" align="center">183
<tr bgcolor="#aaaadd">184
<td width="20%" align="center">185
文件：</td>186
<td width="80%">187
<asp:TextBox ID="redirect" size="10" runat="server" /></td>188
</tr>189
<tr>190
<td width="20%" align="center">191
用户名：</td>192
<td width="80%" colspan="3">193
<asp:TextBox ID="user" size="30" runat="server" />194
</td>195
</tr>196
<tr>197
<td width="20%" align="center">198
口令：</td>199
<td width="80%" colspan="3">200
<asp:TextBox ID="pass" size="30" runat="server" />201
</td>202
</tr>203
<tr>204
<td colspan="4" bgcolor="#FF9933" height="2">205
</td>206
</tr>207
</table>208
<asp:Button ID="submit" Text="提交" OnClick="AddItem_Click" runat="server" />209
<asp:Button ID="reset" OnClick="reset_Click" runat="server" Text="取消"></asp:Button>210
</asp:Panel>211
<p align="center">212
<asp:Label ID="Label1" Text="" Style="color: #FF0000" runat="server" />213
</form>214
</center>215
</body>216
</html>217
XML
KEY.XML文件
1
<datasets>2
<xs:schema id="datasets" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">3
<xs:element name="datasets" msdata:IsDataSet="true" msdata:Locale="en-US">4
<xs:complexType>5
<xs:choice minOccurs="0" maxOccurs="unbounded">6
<xs:element name="dataset">7
<xs:complexType>8
<xs:sequence>9
<xs:element name="user" type="xs:string" minOccurs="0" />10
<xs:element name="pass" type="xs:string" minOccurs="0" />11
<xs:element name="redirect" type="xs:string" minOccurs="0" />12
</xs:sequence>13
</xs:complexType>14
</xs:element>15
</xs:choice>16
</xs:complexType>17
</xs:element>18
</xs:schema>19
<dataset>20
<user>A823AB89CA199CFAF0236E51ADAABD42</user>21
<pass>292ABBB0644F20EC9BF9A0F39F7D15F9</pass>22
<redirect>manageinfo.aspx</redirect>23
</dataset>24
<dataset>25
<user>ED2C53AB0DA2569ABDC041A7AB0A0861</user>26
<pass>292ABBB0644F20EC9BF9A0F39F7D15F9</pass>27
<redirect>managemess.aspx</redirect>28
</dataset>29
</datasets>