您好我正在尝试组合以下两个数据表,代码没有出错,但它没有在输出中组合它们。我在这条线上遇到了麻烦:
if (pdc.ColumnName != "ORDER_NUMBER")
dac[pdc.ColumnName] = dsCheck.Tables[0].Rows.Find(dac[pdc.ColumnName]);
代码:
public string GetData()
{
System.Data.DataSet dsCheck = new System.Data.DataSet();
dsCheck.Tables.Add(this.GetOrder());
//dsCheck.Tables.Add(this.GetSAP_Data());
dsCheck.Tables.Add(GetFIS_Data());
//return ds;
//Create relationship
// Create the array of Parent and Child columns.
DataColumn ParentCol ;
DataColumn ChildCol ;
ParentCol = new DataColumn() ;
ChildCol = new DataColumn() ;
// Set the name of the parent column to hold the relationship.
ParentCol.DataType = System.Type.GetType("System.String");
ParentCol = dsCheck.Tables[0].Columns["ORDER_NUMBER"];
// Set the name of the child column to hold the relationship.
ChildCol.DataType = System.Type.GetType("System.String");
ChildCol = dsCheck.Tables[1].Columns["KOMNR"];
// Create the relationship
DataRelation Rel = new DataRelation("DataLink", ParentCol, ChildCol,false) ;
// Add the newly created relationship to the dataset.
dsCheck.Relations.Add(Rel) ;
//add parent columns to child DataTable
foreach (DataColumn dac in dsCheck.Tables[0].Columns)
{
if (!dsCheck.Tables[1].Columns.Contains(dac.ColumnName))
dsCheck.Tables[1].Columns.Add(dac.ColumnName);
}
//add parent data to child DataTable
foreach (DataRow dac in dsCheck.Tables[1].Rows)
{
foreach (DataColumn pdc in dsCheck.Tables[0].Columns)
{
if (pdc.ColumnName != "ORDER_NUMBER")
dac[pdc.ColumnName] = dsCheck.Tables[0].Rows.Find(dac[pdc.ColumnName]);
}
}
StringWriter sw = new StringWriter();
dsCheck.WriteXml(sw);
string result = sw.ToString();
return result;
}
}