TableAdapter：查询值和目标字段的数量不相同
TableAdapter: Number of query values and destination fields are not the same
几天来，我一直在摸不着头脑，为什么这个 TableAdapter 在调用更新命令时给我错误 Number of query values and destination fields are not the same。它对我来说看起来不错，除了之前在评论中发现的地方外，到处都有 5 个参数，但显然我缺少一些东西。
这是支持它的 xml 的相关部分：
<TableAdapter BaseClass="System.ComponentModel.Component" DataAccessorModifier="AutoLayout, AnsiClass, Class, Public" DataAccessorName="UomListTableAdapter" GeneratorDataComponentClassName="UomListTableAdapter" Name="UomList" UserDataComponentName="UomListTableAdapter">
<MainSource>
<DbSource ConnectionRef="DataConnectionString (MySettings)" DbObjectName="UomList" DbObjectType="Table" FillMethodModifier="Public" FillMethodName="Fill" GenerateMethods="Both" GenerateShortCommands="true" GeneratorGetMethodName="GetData" GeneratorSourceName="Fill" GetMethodModifier="Public" GetMethodName="GetData" QueryType="Rowset" ScalarCallRetval="System.Object, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" UseOptimisticConcurrency="true" UserGetMethodName="GetData" UserSourceName="Fill">
<DeleteCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>DELETE FROM UomList
WHERE (SetID = ?) AND (Name = ?)</CommandText>
<Parameters>
<Parameter AllowDbNull="true" AutogeneratedName="Param1" ColumnName="" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="SetID" Precision="0" ProviderType="VarWChar" Scale="0" Size="50" SourceColumn="SetID" SourceColumnNullMapping="false" SourceVersion="Original" />
<Parameter AllowDbNull="false" AutogeneratedName="Param2" ColumnName="" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Name" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Name" SourceColumnNullMapping="false" SourceVersion="Original" />
</Parameters>
</DbCommand>
</DeleteCommand>
<InsertCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>INSERT INTO UomList
(SetID, Name, Abbr, Qty, IsBase)
VALUES (?, ?, ?, ?)</CommandText>
<Parameters>
<Parameter AllowDbNull="true" AutogeneratedName="Param3" ColumnName="SetID" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="SetID" Precision="0" ProviderType="VarWChar" Scale="0" Size="50" SourceColumn="SetID" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param4" ColumnName="Name" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Name" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Name" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param5" ColumnName="Abbr" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Abbr" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Abbr" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param6" ColumnName="Qty" DataSourceName="" DataTypeServer="unknown" DbType="Double" Direction="Input" ParameterName="Qty" Precision="0" ProviderType="Double" Scale="0" Size="0" SourceColumn="Qty" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param1" ColumnName="IsBase" DataSourceName="" DataTypeServer="unknown" DbType="Boolean" Direction="Input" ParameterName="IsBase" Precision="0" ProviderType="Boolean" Scale="0" Size="0" SourceColumn="IsBase" SourceColumnNullMapping="false" SourceVersion="Current" />
</Parameters>
</DbCommand>
</InsertCommand>
<SelectCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>SELECT SetID, Name, Abbr, Qty, IsBase
FROM UomList</CommandText>
<Parameters />
</DbCommand>
</SelectCommand>
<UpdateCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>UPDATE UomList
SET Abbr = ?, Qty = ?, IsBase = ?
WHERE (SetID = ?) AND (Name = ?)</CommandText>
<Parameters>
<Parameter AllowDbNull="false" AutogeneratedName="Param1" ColumnName="Abbr" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Abbr" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Abbr" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param2" ColumnName="Qty" DataSourceName="" DataTypeServer="unknown" DbType="Double" Direction="Input" ParameterName="Qty" Precision="0" ProviderType="Double" Scale="0" Size="0" SourceColumn="Qty" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param3" ColumnName="IsBase" DataSourceName="" DataTypeServer="unknown" DbType="Boolean" Direction="Input" ParameterName="IsBase" Precision="0" ProviderType="Boolean" Scale="0" Size="0" SourceColumn="IsBase" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="true" AutogeneratedName="Param4" ColumnName="SetID" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Original_SetID" Precision="0" ProviderType="VarWChar" Scale="0" Size="50" SourceColumn="SetID" SourceColumnNullMapping="false" SourceVersion="Original" />
<Parameter AllowDbNull="false" AutogeneratedName="Param5" ColumnName="Name" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Original_Name" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Name" SourceColumnNullMapping="false" SourceVersion="Original" />
</Parameters>
</DbCommand>
</UpdateCommand>
</DbSource>
</MainSource>
<Mappings>
<Mapping SourceColumn="SetID" DataSetColumn="SetID" />
<Mapping SourceColumn="Name" DataSetColumn="Name" />
<Mapping SourceColumn="Abbr" DataSetColumn="Abbr" />
<Mapping SourceColumn="Qty" DataSetColumn="Qty" />
<Mapping SourceColumn="IsBase" DataSetColumn="IsBase" />
</Mappings>
<Sources />
</TableAdapter>
<xs:element name="UomList" msprop:Generator_UserTableName="UomList" msprop:Generator_RowDeletedName="UomListRowDeleted" msprop:Generator_RowChangedName="UomListRowChanged" msprop:Generator_RowClassName="UomListRow" msprop:Generator_RowChangingName="UomListRowChanging" msprop:Generator_RowEvArgName="UomListRowChangeEvent" msprop:Generator_RowEvHandlerName="UomListRowChangeEventHandler" msprop:Generator_TableClassName="UomListDataTable" msprop:Generator_TableVarName="tableUomList" msprop:Generator_RowDeletingName="UomListRowDeleting" msprop:Generator_TablePropName="UomList">
<xs:complexType>
<xs:sequence>
<xs:element name="SetID" msprop:Generator_UserColumnName="SetID" msprop:Generator_ColumnPropNameInRow="SetID" msprop:Generator_ColumnVarNameInTable="columnSetID" msprop:Generator_ColumnPropNameInTable="SetIDColumn" minOccurs="0">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="50" />
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="Name" msprop:Generator_UserColumnName="Name" msprop:Generator_ColumnPropNameInRow="Name" msprop:Generator_ColumnVarNameInTable="columnName" msprop:Generator_ColumnPropNameInTable="NameColumn">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="31" />
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="Abbr" msprop:Generator_UserColumnName="Abbr" msprop:Generator_ColumnPropNameInRow="Abbr" msprop:Generator_ColumnVarNameInTable="columnAbbr" msprop:Generator_ColumnPropNameInTable="AbbrColumn" minOccurs="0">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="31" />
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="Qty" msprop:Generator_UserColumnName="Qty" msprop:Generator_ColumnPropNameInRow="Qty" msprop:Generator_ColumnVarNameInTable="columnQty" msprop:Generator_ColumnPropNameInTable="QtyColumn" type="xs:double" minOccurs="0" />
<xs:element name="IsBase" msprop:Generator_UserColumnName="IsBase" msprop:Generator_ColumnPropNameInRow="IsBase" msprop:Generator_ColumnVarNameInTable="columnIsBase" msprop:Generator_ColumnPropNameInTable="IsBaseColumn" type="xs:boolean" minOccurs="0" />
<xs:element name="ListDisplay" msdata:ReadOnly="true" msdata:Expression="IIF(SetID = '', Name, Name + ' ' + Qty)" msprop:Generator_UserColumnName="ListDisplay" msprop:Generator_ColumnPropNameInRow="ListDisplay" msprop:Generator_ColumnVarNameInTable="columnListDisplay" msprop:Generator_ColumnPropNameInTable="ListDisplayColumn" type="xs:string" minOccurs="0" />
<xs:element name="SelDisplay" msdata:ReadOnly="true" msdata:Expression="IIF(SetID = '', Qty, Abbr + '(' + Qty + ')')" msprop:Generator_UserColumnName="SelDisplay" msprop:Generator_ColumnPropNameInRow="SelDisplay" msprop:Generator_ColumnVarNameInTable="columnSelDisplay" msprop:Generator_ColumnPropNameInTable="SelDisplayColumn" type="xs:string" minOccurs="0" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:unique name="UomKey1" msdata:PrimaryKey="true">
<xs:selector xpath=".//mstns:UomList" />
<xs:field xpath="mstns:SetID" />
<xs:field xpath="mstns:Name" />
</xs:unique>
参数个数哪里不匹配？
查看 XML 似乎 Insert 命令似乎有 4 个问号和 5 个参数。
<InsertCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>INSERT INTO UomList (SetID, Name, Abbr, Qty, IsBase) VALUES (?, ?, ?, ?)
</CommandText>
引用 "Update" 的错误可能与 TableAdapter.Update 有关，不一定是更新命令。 TableAdapter.Update 根据数据表中行的状态，根据需要调用插入、更新和删除命令。
几天来，我一直在摸不着头脑，为什么这个 TableAdapter 在调用更新命令时给我错误 Number of query values and destination fields are not the same。它对我来说看起来不错，除了之前在评论中发现的地方外，到处都有 5 个参数，但显然我缺少一些东西。
这是支持它的 xml 的相关部分：
<TableAdapter BaseClass="System.ComponentModel.Component" DataAccessorModifier="AutoLayout, AnsiClass, Class, Public" DataAccessorName="UomListTableAdapter" GeneratorDataComponentClassName="UomListTableAdapter" Name="UomList" UserDataComponentName="UomListTableAdapter">
<MainSource>
<DbSource ConnectionRef="DataConnectionString (MySettings)" DbObjectName="UomList" DbObjectType="Table" FillMethodModifier="Public" FillMethodName="Fill" GenerateMethods="Both" GenerateShortCommands="true" GeneratorGetMethodName="GetData" GeneratorSourceName="Fill" GetMethodModifier="Public" GetMethodName="GetData" QueryType="Rowset" ScalarCallRetval="System.Object, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" UseOptimisticConcurrency="true" UserGetMethodName="GetData" UserSourceName="Fill">
<DeleteCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>DELETE FROM UomList
WHERE (SetID = ?) AND (Name = ?)</CommandText>
<Parameters>
<Parameter AllowDbNull="true" AutogeneratedName="Param1" ColumnName="" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="SetID" Precision="0" ProviderType="VarWChar" Scale="0" Size="50" SourceColumn="SetID" SourceColumnNullMapping="false" SourceVersion="Original" />
<Parameter AllowDbNull="false" AutogeneratedName="Param2" ColumnName="" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Name" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Name" SourceColumnNullMapping="false" SourceVersion="Original" />
</Parameters>
</DbCommand>
</DeleteCommand>
<InsertCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>INSERT INTO UomList
(SetID, Name, Abbr, Qty, IsBase)
VALUES (?, ?, ?, ?)</CommandText>
<Parameters>
<Parameter AllowDbNull="true" AutogeneratedName="Param3" ColumnName="SetID" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="SetID" Precision="0" ProviderType="VarWChar" Scale="0" Size="50" SourceColumn="SetID" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param4" ColumnName="Name" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Name" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Name" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param5" ColumnName="Abbr" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Abbr" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Abbr" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param6" ColumnName="Qty" DataSourceName="" DataTypeServer="unknown" DbType="Double" Direction="Input" ParameterName="Qty" Precision="0" ProviderType="Double" Scale="0" Size="0" SourceColumn="Qty" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param1" ColumnName="IsBase" DataSourceName="" DataTypeServer="unknown" DbType="Boolean" Direction="Input" ParameterName="IsBase" Precision="0" ProviderType="Boolean" Scale="0" Size="0" SourceColumn="IsBase" SourceColumnNullMapping="false" SourceVersion="Current" />
</Parameters>
</DbCommand>
</InsertCommand>
<SelectCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>SELECT SetID, Name, Abbr, Qty, IsBase
FROM UomList</CommandText>
<Parameters />
</DbCommand>
</SelectCommand>
<UpdateCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>UPDATE UomList
SET Abbr = ?, Qty = ?, IsBase = ?
WHERE (SetID = ?) AND (Name = ?)</CommandText>
<Parameters>
<Parameter AllowDbNull="false" AutogeneratedName="Param1" ColumnName="Abbr" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Abbr" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Abbr" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param2" ColumnName="Qty" DataSourceName="" DataTypeServer="unknown" DbType="Double" Direction="Input" ParameterName="Qty" Precision="0" ProviderType="Double" Scale="0" Size="0" SourceColumn="Qty" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="false" AutogeneratedName="Param3" ColumnName="IsBase" DataSourceName="" DataTypeServer="unknown" DbType="Boolean" Direction="Input" ParameterName="IsBase" Precision="0" ProviderType="Boolean" Scale="0" Size="0" SourceColumn="IsBase" SourceColumnNullMapping="false" SourceVersion="Current" />
<Parameter AllowDbNull="true" AutogeneratedName="Param4" ColumnName="SetID" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Original_SetID" Precision="0" ProviderType="VarWChar" Scale="0" Size="50" SourceColumn="SetID" SourceColumnNullMapping="false" SourceVersion="Original" />
<Parameter AllowDbNull="false" AutogeneratedName="Param5" ColumnName="Name" DataSourceName="" DataTypeServer="unknown" DbType="String" Direction="Input" ParameterName="Original_Name" Precision="0" ProviderType="VarWChar" Scale="0" Size="31" SourceColumn="Name" SourceColumnNullMapping="false" SourceVersion="Original" />
</Parameters>
</DbCommand>
</UpdateCommand>
</DbSource>
</MainSource>
<Mappings>
<Mapping SourceColumn="SetID" DataSetColumn="SetID" />
<Mapping SourceColumn="Name" DataSetColumn="Name" />
<Mapping SourceColumn="Abbr" DataSetColumn="Abbr" />
<Mapping SourceColumn="Qty" DataSetColumn="Qty" />
<Mapping SourceColumn="IsBase" DataSetColumn="IsBase" />
</Mappings>
<Sources />
</TableAdapter>
<xs:element name="UomList" msprop:Generator_UserTableName="UomList" msprop:Generator_RowDeletedName="UomListRowDeleted" msprop:Generator_RowChangedName="UomListRowChanged" msprop:Generator_RowClassName="UomListRow" msprop:Generator_RowChangingName="UomListRowChanging" msprop:Generator_RowEvArgName="UomListRowChangeEvent" msprop:Generator_RowEvHandlerName="UomListRowChangeEventHandler" msprop:Generator_TableClassName="UomListDataTable" msprop:Generator_TableVarName="tableUomList" msprop:Generator_RowDeletingName="UomListRowDeleting" msprop:Generator_TablePropName="UomList">
<xs:complexType>
<xs:sequence>
<xs:element name="SetID" msprop:Generator_UserColumnName="SetID" msprop:Generator_ColumnPropNameInRow="SetID" msprop:Generator_ColumnVarNameInTable="columnSetID" msprop:Generator_ColumnPropNameInTable="SetIDColumn" minOccurs="0">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="50" />
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="Name" msprop:Generator_UserColumnName="Name" msprop:Generator_ColumnPropNameInRow="Name" msprop:Generator_ColumnVarNameInTable="columnName" msprop:Generator_ColumnPropNameInTable="NameColumn">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="31" />
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="Abbr" msprop:Generator_UserColumnName="Abbr" msprop:Generator_ColumnPropNameInRow="Abbr" msprop:Generator_ColumnVarNameInTable="columnAbbr" msprop:Generator_ColumnPropNameInTable="AbbrColumn" minOccurs="0">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="31" />
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="Qty" msprop:Generator_UserColumnName="Qty" msprop:Generator_ColumnPropNameInRow="Qty" msprop:Generator_ColumnVarNameInTable="columnQty" msprop:Generator_ColumnPropNameInTable="QtyColumn" type="xs:double" minOccurs="0" />
<xs:element name="IsBase" msprop:Generator_UserColumnName="IsBase" msprop:Generator_ColumnPropNameInRow="IsBase" msprop:Generator_ColumnVarNameInTable="columnIsBase" msprop:Generator_ColumnPropNameInTable="IsBaseColumn" type="xs:boolean" minOccurs="0" />
<xs:element name="ListDisplay" msdata:ReadOnly="true" msdata:Expression="IIF(SetID = '', Name, Name + ' ' + Qty)" msprop:Generator_UserColumnName="ListDisplay" msprop:Generator_ColumnPropNameInRow="ListDisplay" msprop:Generator_ColumnVarNameInTable="columnListDisplay" msprop:Generator_ColumnPropNameInTable="ListDisplayColumn" type="xs:string" minOccurs="0" />
<xs:element name="SelDisplay" msdata:ReadOnly="true" msdata:Expression="IIF(SetID = '', Qty, Abbr + '(' + Qty + ')')" msprop:Generator_UserColumnName="SelDisplay" msprop:Generator_ColumnPropNameInRow="SelDisplay" msprop:Generator_ColumnVarNameInTable="columnSelDisplay" msprop:Generator_ColumnPropNameInTable="SelDisplayColumn" type="xs:string" minOccurs="0" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:unique name="UomKey1" msdata:PrimaryKey="true">
<xs:selector xpath=".//mstns:UomList" />
<xs:field xpath="mstns:SetID" />
<xs:field xpath="mstns:Name" />
</xs:unique>
参数个数哪里不匹配？
查看 XML 似乎 Insert 命令似乎有 4 个问号和 5 个参数。
<InsertCommand>
<DbCommand CommandType="Text" ModifiedByUser="true">
<CommandText>INSERT INTO UomList (SetID, Name, Abbr, Qty, IsBase) VALUES (?, ?, ?, ?)
</CommandText>
引用 "Update" 的错误可能与 TableAdapter.Update 有关，不一定是更新命令。 TableAdapter.Update 根据数据表中行的状态，根据需要调用插入、更新和删除命令。