Querying Active Directory Using C

Querying a Data Table Using Select Method and Lambda Expressions in CIn this article, we are explaining how we can. Data. Table object using the select method and Lambda. If you have your data in a Data. Table object and we want to retrieve specific. Lamda Expression. A sample code. is also attached with this article to explain the concept. Suppose we have a Data. Table object having four fields SSN, NAME, ADDRESS and. AGE. We could create a data table and add columns in the following way Data. Table dt  new Data. Table. dt. Columns. This post talks about querying Active Directory Sites and subnets information from AD using Powershell. This script is helpful when you want to know subnet. Here is a collection of info on how to access Active Directory using JAVA for tasks like User and Group management, and authentication. Positively Click Sign In to add the tip, solution, correction or comment that will help other users. Report inappropriate content using these instructions. AddSSN, typeofstring. Columns. AddNAME, typeofstring. Columns. AddADDR, typeofstring. Columns. AddAGE, typeofint. Showing how to set Primary Keys in a Data table Although its not compulsory to have one. Software/ADReportingTool/NewQuery.png' alt='Querying Active Directory Using C' title='Querying Active Directory Using C' />Data. Column keys  new Data. Column1. keys0  dt. Columns0. dt. Primary. Key  keys. Now we store some data in our data table dt to show how we can perform several queries on the Data. Table. object like filtering some data, finding a persons record on certain conditions, sorting the persons records into. These types of operations can easily be performed using a Lambda. Expression and the select method. Rows. Add2. 03. John, 1. Main Street, Newyork, NY, 1. Rows. Add2. 03. SAM, 1. Main Ct, Newyork, NY, 2. Rows. Add2. 03. Elan, 1. Main Street, Newyork, NY, 3. Rows. Add2. 03. Smith, 1. Main Street, Newyork, NY, 4. Rows. Add2. 03. SAM, 3. Main Ave, Dayton, OH, 5. Rows. Add2. 03. Sue, 3. Cranbrook Rd, Newyork, NY, 6. Rows. Add2. 03. Winston, 1. Alex St, Newyork, NY, 6. Rows. Add2. 03. Mac, 1. Province Ave, Baltimore, NY, 8. Rows. Add2. 03. SAM, 1. Province Ave, Baltimore, NY, 9. Now we see how we can perform various queries. Lambda. expression. A Data. Table object has a built in select method that has the. Data. Row Data. Table. Selectstring filter. Expression, string sortWhere the input parameters are filter. Expression criteria to use to filter the rows. Return Value. An array of Data. Row objects matching the filter expression. The following code. SAM. Here. the filter expression is NAME lt SAM where the lt is a NOT operator. See Console. Write. Line Retrieving all the person except having name SAMn foreach Data. Row o in dt. SelectNAME lt  SAMConsole. Write. Linet  oSSN  t  oNAME  t  oADDR  t  oAGE The following code retrieves the two oldest. Here the filter expression is AGE 6. Console. Write. Line Retrieving Top 2 aged persons from the list who are older than 6. Data. Row o in dt. SelectAGE  6. Take2Console. Write. Linet  oSSN  t  oNAME  t  oADDR  t  oAGE The following code gets the average of all the. Here we keep the filter criteria empty and then use a Lambda. Average method Console. Write. Linen Getting Average of all the persons age. Age  dt. Select. Averagee  inte. Item. Array3 Console. Write. Line The average of all the persons age is   avg. Age The following code checks whether a person. SAM exists or not. Here we keep the filter criteria empty and. Lambda expression in the Any method Console. Write. Linen Checking whether a person having name SAM exists or not. Select. Anye  e. Item. Array1. To. String  SAMConsole. Write. Linet. Yes, A person having name  SAM exists in our list The following code checks whether any person. Here the filter expression in the Select method is AGE. AND AGE lt 1. Any. See Console. Write. Linen Checking whether any person is teen ager or not. SelectAGE   1. AND AGE lt  1. AnyConsole. Write. Linet Yes, we have some teen agers in the list The following code gets a sorted list of. Here we keep the filter criteria empty. AGE DESC Console. Write. Linen. Sorting data table in Descening order by AGE  foreach Data. Row o in dt. Select,AGE DESCConsole. Write. Linet  oSSN  t  oNAME  t  oADDR  t  oAGE The following code gets a sorted list of persons. Here we keep the filter criteria empty and the. NAME ASC Console. Write. Linen. Sorting data table in Aescening order by NAME  foreach Data. Row o in dt. Select, NAME ASCConsole. Write. Linet  oSSN  t  oNAME  t  oADDR  t  oAGE Following code gets the name of. Here we keep the filter criteria empty and. Then use the Last method to determine the oldest person. Console. Write. Linen Getting the name of the most aged person in the list . Data. Row most. Aged. Person  dt. Select, AGE ASC. Last Console. Write. Linetmost. Aged. PersonSSN  t  most. Aged. PersonNAME  t  most. Aged. PersonADDR      t  most. Aged. PersonAGE The following code gets the sum of everyones. Here we keep the filter criteria empty and then use a Lambda expression in. Sum method, whereas Item. Array3 indicates the Age column. See Console. Write. Linen Getting Sum of all the persons age. Of. Ages dt. Select. Sume int e. Item. Array3 Console. Write. Linet The sum of all the personss age    sum. Of. Ages The following code skips everyone whose age is. Here we keep the filter criteria empty and then use a Lambda. Skip. While method, whereas Item. Array3 indicates the Age. See Console. Write. Linen Skipping every person whose age is less than 6. Data. Row o in dt. Select. Skip. Whilee inte. Item. Array3 lt. Console. Write. LinetoSSN  t  oNAME  t  oADDR  t  oAGE The following code gets everyone until we find. S. Here we keep. Lambda expression in the Where. Item. Array1 indicates the Name column. T2 Trainspotting Film Online 2017 720P'>T2 Trainspotting Film Online 2017 720P. See Console. Write. Line Displaying the persons until we find a person with name starts with other than S foreach Data. Software To Draw Map Roads. Row o in dt. Select. Wheree e. Item. Array1. To. String. Starts. WithSConsole. Write. Linet  oSSN  t  oNAME  t  oADDR  t  oAGE The following code checks everyone to determine if they have a SSN. Here we keep. the filter criteria empty and then use a Lambda expression in the All method. Item. Array0 indicates the SSN column. See Console. Write. Linen Checking all the persons have SSN or not . Select. Alle  e. Item. Array0  nullConsole. Write. Linet No person is found without SSN The following code searches for whoever has the SSN 2. Console. Write. Linen Finding the person whose SSN  2. Data. Row o in dt. SelectSSN  2. Console. Write. Linet  oSSN  t  oNAME  t  oADDR  t  oAGE.