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我尝试使用ADOX命名空间中创建Access数据库...与ADOX创建Access数据库时,数值字段类型给我COMExceptions
一切正常,当我定义所有领域ADOX.DataTypeEnum.adVarWChar为测试目的,但现在我试图定义 整数或十进制(数字类型),我的代码不工作了...
例外我得到的是一个恶性循环。
adInteger抛出无效的类型异常, adDecimal抛出无效的类型异常, adNumeric抛出无效精度异常
我找不到defning数字字段的正确途径单一来源!
ADOX.Table table1 = new ADOX.Table();
ADOX.Key tableKey1 = new Key();
ADOX.Column idColumn1 = new Column();
// Define column with AutoIncrement features
idColumn1.Name = "ID";
idColumn1.Type = ADOX.DataTypeEnum.adInteger;
// Set ID as primary key
tableKey1.Name = "Primary Key";
tableKey1.Columns.Append("ID");
tableKey1.Type = KeyTypeEnum.adKeyPrimary;
//Create the table and it's fields.
table1.Name = "Artikli";
table1.Columns.Append(idColumn1);
table1.Columns.Append("FLAG", ADOX.DataTypeEnum.adVarWChar, 50);
table1.Columns.Append("SIFRA", ADOX.DataTypeEnum.adInteger);
table1.Columns.Append("BARKOD", ADOX.DataTypeEnum.adVarWChar, 50);
table1.Columns.Append("NAZIV", ADOX.DataTypeEnum.adVarWChar, 50);
table1.Columns.Append("JM", ADOX.DataTypeEnum.adVarWChar, 50);
table1.Columns.Append("TB", ADOX.DataTypeEnum.adNumeric);
table1.Columns.Append("MPC", ADOX.DataTypeEnum.adNumeric);
table1.Columns.Append("VPC", ADOX.DataTypeEnum.adNumeric);
table1.Columns.Append("NC", ADOX.DataTypeEnum.adNumeric);
table1.Columns.Append("ZALIHE", ADOX.DataTypeEnum.adInteger);
table1.Columns.Append("RG", ADOX.DataTypeEnum.adVarWChar, 50);
table1.Columns.Append("KALO", ADOX.DataTypeEnum.adInteger);
cat.Create("Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + fileName + "; Jet OLEDB:Engine Type=5");
// Must create database file before applying autonumber to column
idColumn.ParentCatalog = cat;
idColumn.Properties["AutoIncrement"].Value = true;
idColumn1.ParentCatalog = cat;
idColumn1.Properties["AutoIncrement"].Value = true;
idColumn2.ParentCatalog = cat;
idColumn2.Properties["AutoIncrement"].Value = true;
idColumn3.ParentCatalog = cat;
idColumn3.Properties["AutoIncrement"].Value = true;
idColumn4.ParentCatalog = cat;
idColumn4.Properties["AutoIncrement"].Value = true;
idColumn5.ParentCatalog = cat;
idColumn5.Properties["AutoIncrement"].Value = true;
idColumn6.ParentCatalog = cat;
idColumn6.Properties["AutoIncrement"].Value = true;
idColumn7.ParentCatalog = cat;
idColumn7.Properties["AutoIncrement"].Value = true;
idColumn8.ParentCatalog = cat;
idColumn8.Properties["AutoIncrement"].Value = true;
cat.Tables.Append(table);
cat.Tables.Append(table1); // throws exception
cat.Tables.Append(table2);
cat.Tables.Append(table3);
cat.Tables.Append(table4);
cat.Tables.Append(table5);
cat.Tables.Append(table6);
cat.Tables.Append(table7);
cat.Tables.Append(table8);
确定我发现此信息:*当您使用Microsoft Jet 4.0和Microsoft SQL Server 7.0的adNumeric数据类型时,您必须设置精度...现在正在处理如何设置精度 - 我将发布更新 – ChenChi