📄 第六章 用户权限管理(七） -- c#读写数据库image字段_宪华_新浪博客.htm
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<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>string
employeeID=DataGrid1.DataKeys[(int)e.Item.ItemIndex].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
string strSql="delete Employees where EmployeeID="+employeeID;</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
if(! new Base().SQLExeNonQuery(strSql))</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
Message.InnerHtml="删除失败！";<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
Message.Style["color"]="red";<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
}<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
else<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
BindGrid();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
}<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
}</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
//datagrid的模板列修改链接按钮<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
private void DataGrid_EditCommand(object source,</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
System.Web.UI.WebControls.DataGridCommandEventArgs<WBR>
e)<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
Button1.Visible=false;//隐藏添加按钮<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
Button2.Visible=true;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
Button3.Visible=true;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
if(ViewState["datagridsource"].ToString() !=
"")<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
DataSet ds=(DataSet)ViewState["datagridsource"];</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>//获取要编辑的记录序号<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
int startIndex = DataGrid1.PageSize *
DataGrid1.CurrentPageIndex;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
int
i=(int)e.Item.ItemIndex+startIndex;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
//员工编号,用于修改语句的where子句.<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox9.Text=ds.Tables[0].Rows[i]["EmployeeID"].ToString();//不可编辑<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox1.Text=ds.Tables[0].Rows[i]["EmployeeName"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
DropDownList1.SelectedValue=ds.Tables[0].Rows[i]["GroupID"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
if(ds.Tables[0].Rows[i]["Sex"].ToString() ==
"F")<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
RadioButton2.Checked=true;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
RadioButton1.Checked=false;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
} <WBR> <WBR> <WBR> <WBR> <WBR><BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
else<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>RadioButton1.Checked=true;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
RadioButton2.Checked=false;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
}<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox2.Text=ds.Tables[0].Rows[i]["Business"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
<WBR>TextBox3.Text=ds.Tables[0].Rows[i]["sbirthdate"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox4.Text=ds.Tables[0].Rows[i]["shiredate"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox5.Text=ds.Tables[0].Rows[i]["Address"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox6.Text=ds.Tables[0].Rows[i]["HomePhone"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox7.Text=ds.Tables[0].Rows[i]["CellPhone"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox8.Text=ds.Tables[0].Rows[i]["Notes"].ToString();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
}<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
}</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
//模板列"照片"使用了imagebutton控件,按钮的commandname属性设置为Update,借用了DataGrid</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
//固有的修改事件处理方法.<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
private void DataGrid_MyCommand(object source,</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
System.Web.UI.WebControls.DataGridCommandEventArgs<WBR>
e)<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
string
strlink="<script>window.open('DisplayImage.aspx?id="+DataGrid1.DataKeys</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>[(int)e.Item.ItemIndex]+"','newwindow','height=400,width=600,top=0,</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
left=0,toolbar=no,menubar=no,scrollbars=no,resizable=no,</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
location=no,status=no');</script>";<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>Response.Write(strlink);<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
}</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
//修改信息<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
private void Button2_Click(object sender, System.EventArgs
e)<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
if(TextBox1.Text.Trim()=="")<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
Label1.Text="姓名不能为空";<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>return;<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
}<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
string strSql="update Employees set <A
href="mailto:EmployeeName=@EmployeeName">EmployeeName=@EmployeeName</A>,</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
<A href="mailto:Business=@Business">Business=@Business</A>, <A
href="mailto:GroupID=@GroupID">GroupID=@GroupID</A>, <A
href="mailto:BirthDate=@BirthDate">BirthDate=@BirthDate</A>,</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
<A href="mailto:HireDate=@HireDate">HireDate=@HireDate</A>, "+"<A
href="mailto:Address=@Address">Address=@Address</A>,<A
href="mailto:HomePhone=@HomePhone,">HomePhone=@HomePhone,</A></P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
<A href="mailto:CellPhone=@CellPhone">CellPhone=@CellPhone</A>, <A
href="mailto:Photo=@Photo">Photo=@Photo</A>, <A
href="mailto:PhotoImageType=@PhotoImageType">PhotoImageType=@PhotoImageType</A>,</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
<A href="mailto:Notes=@Notes,Sex=@Sex">Notes=@Notes,Sex=@Sex</A> where
EmployeeID="+TextBox9.Text.Trim(); <WBR> <WBR> <WBR> <WBR> <WBR> <WBR><BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
SqlCommand mycommand=new SqlCommand(strSql);</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>//设置SQL参数<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
setprocargument(mycommand);<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
Base basecode=new Base();</P>
<P
align=left> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
if(basecode.SQLExeNonQuery_proc(mycommand))<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
{<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
BindGrid();<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox1.Text="";<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox2.Text="";<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox3.Text="";<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
TextBox4.Text="";<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
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