How to get the cell value by column name not by index in GridView in asp net

Question

I am having a gridview in asp net and now I want the cell value by the column name but not by the cell index   How would be it possible by retrieving the cell value by the cell column name

User · Answer

get the value of a gridview public string getUpdatingGridviewValue GridView gridviewEntry  string fieldEntry         start getGridviewValue           scan gridview for cell value             string result   Convert ToString functionsOther getCurrentTime                  for int i   0  i  lt  gridviewEntry HeaderRow Cells Count  i                       start i for                     if gridviewEntry HeaderRow Cells i  Text    fieldEntry                             start check field match                             result   gridviewEntry Rows rowUpdateIndex  Cells i  Text                              break                             end check field match                    end i for           return             return result         end getGridviewValue

User · Answer

It is possible to use the data field name  if not the title so easily  which solved the problem for me  For ASP NET  amp  VB     e g  For a string   Dim Encoding   e Row DataItem  Encoding   ToString   Trim    e g  For an integer   Dim MsgParts   Convert ToInt32 e Row DataItem  CalculatedMessageParts   ToString

User · Answer

You can use the DataRowView to get the column index       void OnRequestsGridRowDataBound object sender  GridViewRowEventArgs e                if  e Row RowType    DataControlRowType DataRow                        var data   e Row DataItem as DataRowView                  replace request name with a link             if  data DataView Table Columns  Request Name      null                                   get the request name                 string title   data  Request Name   ToString                       get the column index                 int idx   data Row Table Columns  Request Name   Ordinal                                           e Row Cells idx  Controls Clear                    e Row Cells idx  Controls Add link

User · Answer

Based on something found on Code Project  Once the data table is declared based on the grid s data source  lookup the column index by column name from the columns collection   At this point  use the index as needed to obtain information from or to format the cell   protected void gridMyGrid RowDataBound object sender  GridViewRowEventArgs e        if  e Row RowType    DataControlRowType DataRow                DataTable dt    DataTable   GridView sender  DataSource          int colIndex   dt Columns  MyColumnName   Ordinal           e Row Cells colIndex  BackColor   Color FromName   ffeb9c

User · Answer

For Lambda lovers  protected void GridView RowDataBound object sender  GridViewRowEventArgs e        if  e Row RowType    DataControlRowType DataRow                var boundFields   e Row Cells Cast lt DataControlFieldCell gt                 Select cell   gt  cell ContainingField  Cast lt BoundField gt    ToList             int idx   boundFields IndexOf              boundFields FirstOrDefault f   gt  f DataField     ColName              e Row Cells idx  Text   modification

User · Answer

Although its a long time but this relatively small piece of code seems easy to read and get   protected void GridView1 SelectedIndexChanged object sender  EventArgs e       int index     string cellContent       foreach  TableCell tc in   GridView sender  HeaderRow Cells               if  tc Text Equals  yourColumnName                       index     GridView sender  HeaderRow Cells GetCellIndex tc            cellContent     GridView sender  SelectedRow Cells index  Text           break

User · Answer

GridView does not act as column names  as that s it s datasource property to know those things   If you still need to know the index given a column name  then you can create a helper method to do this as the gridview Header normally contains this information   int GetColumnIndexByName GridViewRow row  string columnName        int columnIndex   0      foreach  DataControlFieldCell cell in row Cells                if  cell ContainingField is BoundField              if    BoundField cell ContainingField  DataField Equals columnName                   break          columnIndex       keep adding 1 while we don t have the correct name           return columnIndex      remember that the code above will use a BoundField    then use it like   protected void GridView RowDataBound object sender  GridViewRowEventArgs e        if  e Row RowType    DataControlRowType DataRow                int index   GetColumnIndexByName e Row   myDataField            string columnValue   e Row Cells index  Text            I would strongly suggest that you use the TemplateField to have your own controls  then it s easier to grab those controls like    lt asp GridView ID  gv  runat  server  gt       lt Columns gt           lt asp TemplateField gt               lt ItemTemplate gt                   lt asp Label ID  lblName  runat  server  Text   lt    Eval  Name     gt     gt               lt  ItemTemplate gt           lt  asp TemplateField gt       lt  Columns gt   lt  asp GridView gt    and then use  string columnValue     Label e Row FindControl  lblName    Text

User · Answer

protected void CheckedRecords object sender  EventArgs e                string email   string Empty          foreach  GridViewRow gridrows in GridView1 Rows                          CheckBox chkbox    CheckBox gridrows FindControl  ChkRecords        if  chkbox    null  amp  chkbox Checked                      int columnIndex   0                  foreach  DataControlFieldCell cell in gridrows Cells                                        if  cell ContainingField is BoundField                          if    BoundField cell ContainingField  DataField Equals  UserEmail                                break                      columnIndex                                         email    gridrows Cells columnIndex  Text                                                Label1 Text    email     email

User · Answer

A little bug with indexcolumn in alexander s answer  We need to take care of  not found  column   int GetColumnIndexByName GridViewRow row  string columnName        int columnIndex   0      int foundIndex -1      foreach  DataControlFieldCell cell in row Cells                if  cell ContainingField is BoundField                        if    BoundField cell ContainingField  DataField Equals columnName                                 foundIndex columnIndex                  break                                  columnIndex       keep adding 1 while we don t have the correct name           return foundIndex      and  protected void GridView RowDataBound object sender  GridViewRowEventArgs e        if  e Row RowType    DataControlRowType DataRow                int index   GetColumnIndexByName e Row   myDataField            if  index gt 0                        string columnValue   e Row Cells index  Text

User · Answer

Header Row cells sometimes will not work  This will just return the column Index  It will help in a lot of different ways  I know this is not the answer he is requesting  But this will help for a lot people  public static int GetColumnIndexByHeaderText GridView gridView  string columnName                      for  int i   0  i  lt  gridView Columns Count   i                          if  gridView Columns i  HeaderText ToUpper      columnName ToUpper                                   return i                                       return -1

[asp.net] How to get the cell value by column name not by index in GridView in asp.net

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