TreeView代码出现错误，指教！ |
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尚未結案
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SUNSEAVE
一般會員   發表：66 回覆：44 積分：22 註冊：2003-09-23 發送簡訊給我 |
var MyTreeNode1: TTreeNode;//定义
(FDmdQueryBase as TDmdQryStockCollect).QryMaster.First;
while not (FDmdQueryBase as TDmdQryStockCollect).QryMaster.Eof do
begin if (owner as TFrmQryStockCollect).TreeView1.Items.Count = 0 then
begin
MyTreeNode1 := TreeView1.Items.Add (nil, QryMaster.FieldByName('FatherItem').AsString); for i := 0 to QryMaster.RecordCount - 1 do
TreeView1.Items.AddChild(MyTreeNode1, QryMaster.FieldByName('Item').AsString);
end;
(FDmdQueryBase as TDmdQryStockCollect).QryMaster.Next; MyTreeNode1: TTreeNode应该在哪里定义？怎么定义？运行时老说未定义
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hagar
版主   發表：143 回覆：4056 積分：4445 註冊：2002-04-14 發送簡訊給我 |
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SUNSEAVE
一般會員 發表：66 回覆：44 積分：22 註冊：2003-09-23 發送簡訊給我 |
(FDmdQueryBase as TDmdQryStockCollect).QryMaster.First;
i := 1;
TmpStr := (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('FatherItem').AsString; while not (FDmdQueryBase as TDmdQryStockCollect).QryMaster.Eof do
begin
if (owner as TFrmQryStockCollect).TreeView1.Items.Count = 0 then
begin
(owner as TFrmQryStockCollect).Node1[i] := (owner as TFrmQryStockCollect).TreeView1.Items.Add((owner as TFrmQryStockCollect).Node1[1], (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('FatherItem').AsString);
end; if tmpstr = (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('Item').AsString then
begin
(owner as TFrmQryStockCollect).TreeView1.Items.Add((owner as TFrmQryStockCollect).Node1[i-1], (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('Item').AsString);
end; if tmpstr = (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('FatherItem').AsString then
begin
(owner as TFrmQryStockCollect).TreeView1.Items.AddChild((owner as TFrmQryStockCollect).Node1[i], (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('Item').AsString);
end
else
begin
(owner as TFrmQryStockCollect).Node1[i] := (owner as TFrmQryStockCollect).TreeView1.Items.Add((owner as TFrmQryStockCollect).Node1[i], (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('FatherItem').AsString);
(owner as TFrmQryStockCollect).TreeView1.Items.AddChild((owner as TFrmQryStockCollect).Node1[i], (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('Item').AsString);
TmpStr := (FDmdQueryBase as TDmdQryStockCollect).QryMaster.FieldByName('FatherItem').AsString;
end;
(FDmdQueryBase as TDmdQryStockCollect).QryMaster.Next;
end;
以上这段代码只能做一层父子NODE的连接，无法在子NODE层上继续添加下一层子NODE，请问还要加什么代码？
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發表時間：2003-11-04 09:58:37
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系統時間：2024-07-02 11:10:48
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