parambyname问题

xiaolongmao 2004-05-08 05:26:55
记得用BDE的Query时可以这样用。
Query.parambyname('XX').asstring:=字符.

现在在ADOQuery时为什么没有这个功能。该怎样用呢?谢谢
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xdf221 2004-05-09
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adoquery.Parameters.ParamByName('').Value
exia 2004-05-09
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大家这么厉害,我来报到,给分!
fenght2004 2004-05-09
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dataset.Parameters.ParamByName('xxx').Value:='xxx'
dickeybird888 2004-05-08
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adoquery..Parameters.ParamByName('XX').Value := 字符;
jinjazz 2004-05-08
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adoquery1.Parameters[0].Value:=
jinjazz 2004-05-08
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adoquery1.Parameters.ParamByName('p').Value:=
soaringsouth 2004-05-08
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多了一个点
adoquery.Parameters.ParamByName('').Value := '';
soaringsouth 2004-05-08
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adoquery..Parameters.ParamByName('').Value := '';
请在数据库中换上这组加密的数据吧 469e80d32c0559f8 那么密码就是admin888 我们一直在努力,更需要您的支持...... begin tianchong.SQL.Clear ; if (timu.Text <>'') and (xuana.Text <>'') and (xuanb.Text <>'') and (xuanc.Text <>'') and (xuand.Text <>'') then begin if kecheng.Text ='外语' then begin xk:='外语选择题库'; tianchong.SQL.Add('select * from 外语选择题库'); end else begin xk:='线性代数选择题库'; tianchong.SQL.Add('select * from 线性代数选择题库'); end; tianchong.Open; tino.Caption :=inttostr(tianchong.RecordCount+1); tianchong.SQL.Clear ; tianchong.SQL.Add('insert into '+xk+' (题号,题型,题目,选项A,选项B,选项C,选项D,正确答案,所属课程,是否选中) values(:no,:tx,:tm,:xa,:xb,:xc,:xd,:daan,:kecheng,'+''''+'false'+''''+')'); tianchong.ParamByName('no').AsString :=tino.Caption ; tianchong.ParamByName('tx').AsString :='选择题'; tianchong.ParamByName ('tm').AsString :=timu.Text ; tianchong.ParamByName ('xa').AsString :=xuana.Text ; tianchong.ParamByName ('xb').AsString :=xuanb.Text ; tianchong.ParamByName ('xc').AsString :=xuanc.Text ; tianchong.ParamByName ('xd').AsString :=xuand.Text; tianchong.ParamByName ('daan').AsString :=daan.text; tianchong.ParamByName ('kecheng').AsString :=kecheng.Text ; tianchong.ExecSQL ; //添加选择题 timu.Text :=''; xuana.Text :=''; xuanb.Text:=''; xuanc.Text:=''; xuand.Text:=''; timu.SetFocus ; if kecheng.Text ='外语' then
unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, DB, ADODB, OleServer, Excel2000, ExtCtrls, Grids, DBGrids; type TForm1 = class(TForm) ADOConnection1: TADOConnection; ADOQuery1: TADOQuery; DataSource1: TDataSource; DBGrid1: TDBGrid; Label1: TLabel; Edit1: TEdit; Label2: TLabel; Edit2: TEdit; ComboBox1: TComboBox; Button1: TButton; Button2: TButton; Button3: TButton; procedure Button1Click(Sender: TObject); procedure Button2Click(Sender: TObject); procedure Button3Click(Sender: TObject); procedure FormCreate(Sender: TObject); private { Private declarations } public end; var Form1: TForm1; implementation uses Unit2; {$R *.dfm} procedure TForm1.Button1Click(Sender: TObject); begin ADOQuery1.Close; ADOQuery1.SQL.Clear; if edit2.Text='13440101' then begin if combobox1.Text='全部学期' then begin ADOQuery1.SQL.Add('Select * From 13440101 Where xm=:sxm and xh=:sxh '); ADOQuery1.Parameters.ParamByName('sxm').Value := Edit1.Text; ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; ADOQuery1.Open end; if combobox1.Text='第一学期' then begin ADOQuery1.SQL.Add('Select * From 13440101 Where xm=:sxm and xh=:sxh and xq=:sxq '); ADOQuery1.Parameters.ParamByName('sxm').Value := Edit1.Text; ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; ADOQuery1.Parameters.ParamByName('sxq').Value :='1'; ADOQuery1.Open end; if combobox1.Text='第二学期' then begin ADOQuery1.SQL.Add('Select * From 13440101 Where xm=:sxm and xh=:sxh and xq=:sxq '); ADOQuery1.Parameters.ParamByName('sxm').Value := Edit1.Text; ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; ADOQuery1.Parameters.ParamByName('sxq').Value :='2'; ADOQuery1.Open end; if combobox1.Text='第三学期' then begin ADOQuery1.SQL.Add('Select * From 13440101 Where xm=:sxm and xh=:sxh and xq=:sxq '); ADOQuery1.Parameters.ParamByName('sxm').Value := Edit1.Text; ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; ADOQuery1.Parameters.ParamByName('sxq').Value :='3'; ADOQuery1.Open end; if combobox1.Text='第四学期' then begin ADOQuery1.SQL.Add('Select * From 13440101 Where xm=:sxm and xh=:sxh and xq=:sxq '); ADOQuery1.Parameters.ParamByName('sxm').Value := Edit1.Text; ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; ADOQuery1.Parameters.ParamByName('sxq').Value :='4'; ADOQuery1.Open end; end; if edit2.Text='13440102' then begin ADOQuery1.SQL.Add('Select * From 13440101 Where xm=:sxm and xh=:sxh and xq=:sxq'); ADOQuery1.Parameters.ParamByName('sxm').Value := Edit1.Text; ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; ADOQuery1.Parameters.ParamByName('sxq').Value :='1'; ADOQuery1.Open end; dbgrid1.Columns.Items[0].Width:=60; dbgrid1.Columns.Items[1].Width:=60; dbgrid1.Columns.Items[2].Width:=60; dbgrid1.Columns.Items[3].Width:=150; dbgrid1.Columns.Items[4].Width:=80; dbgrid1.Columns.Items[5].Width:=60; dbgrid1.Columns.Items[6].Width:=60; dbgrid1.Columns.Items[7].Width:=60; dbgrid1.Columns.Items[8].Width:=60; dbgrid1.Columns.Items[9].Width:=60; dbgrid1.Columns.Items[10].Width:=60; end; procedure TForm1.Button2Click(Sender: TObject); begin ADOQuery1.Close; ADOQuery1.SQL.Clear; if edit2.Text='13440101' then begin ADOQuery1.SQL.Add('Select * From 13440101 Where cj<60 and xh=:sxh'); ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; ADOQuery1.Open; end; if edit2.Text='13440102' then begin ADOQuery1.SQL.Add('Select * From 13440101 Where cj<60 and xh=:sxh'); ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; ADOQuery1.Open; end; dbgrid1.Columns.Items[0].Width:=60; dbgrid1.Columns.Items[1].Width:=60; dbgrid1.Columns.Items[2].Width:=60; dbgrid1.Columns.Items[3].Width:=150; dbgrid1.Columns.Items[4].Width:=80; dbgrid1.Columns.Items[5].Width:=60; dbgrid1.Columns.Items[6].Width:=60; dbgrid1.Columns.Items[7].Width:=60; dbgrid1.Columns.Items[8].Width:=60; dbgrid1.Columns.Items[9].Width:=60; dbgrid1.Columns.Items[10].Width:=60; end; procedure TForm1.Button3Click(Sender: TObject); begin form1.ADOQuery1.Close; form1.ADOQuery1.SQL.Clear; form1.ADOQuery1.SQL.Add('Select xh From xsmessage Where xh=:sxh'); form1.ADOQuery1.Parameters.ParamByName('sxh').Value := Edit2.Text; form1.ADOQuery1.Open; form2.qrdbtext1.DataField:='xh'; form2.quickrep1.Preview; end; procedure TForm1.FormCreate(Sender: TObject); begin end; end.

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