Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Complete code to sort the column of datagridview whose datasource is a generic List</p> <pre><code>//----------------------------------------------------------------------------------------- //In the form - In constructor or form load, populate the grid. //-------------------------------------------------------------------------------------------- List&lt;student&gt; students; private void PopulateList() { student std1 = new student("sss", 15, "Female"); student std2 = new student("ddd", 12, "Male"); student std3 = new student("zzz", 16, "Male"); student std4 = new student("qqq", 14, "Female"); student std5 = new student("aaa", 11, "Male"); student std6 = new student("lll", 13, "Female"); students = new List&lt;student&gt;(); students.Add(std1); students.Add(std2); students.Add(std3); students.Add(std4); students.Add(std5); students.Add(std6); dataGridView1.DataSource = students; } //--------------------------------------------------------------------------------------------- //Comparer class to perform sorting based on column name and sort order //--------------------------------------------------------------------------------------------- class StudentComparer : IComparer&lt;Student&gt; { string memberName = string.Empty; // specifies the member name to be sorted SortOrder sortOrder = SortOrder.None; // Specifies the SortOrder. /// &lt;summary&gt; /// constructor to set the sort column and sort order. /// &lt;/summary&gt; /// &lt;param name="strMemberName"&gt;&lt;/param&gt; /// &lt;param name="sortingOrder"&gt;&lt;/param&gt; public StudentComparer(string strMemberName, SortOrder sortingOrder) { memberName = strMemberName; sortOrder = sortingOrder; } /// &lt;summary&gt; /// Compares two Students based on member name and sort order /// and return the result. /// &lt;/summary&gt; /// &lt;param name="Student1"&gt;&lt;/param&gt; /// &lt;param name="Student2"&gt;&lt;/param&gt; /// &lt;returns&gt;&lt;/returns&gt; public int Compare(Student Student1, Student Student2) { int returnValue = 1; switch (memberName) { case "Name" : if (sortOrder == SortOrder.Ascending) { returnValue = Student1.Name.CompareTo(Student2.Name); } else { returnValue = Student2.Name.CompareTo(Student1.Name); } break; case "Sex": if (sortOrder == SortOrder.Ascending) { returnValue = Student1.Sex.CompareTo(Student2.Sex); } else { returnValue = Student2.Sex.CompareTo(Student1.Sex); } break; default: if (sortOrder == SortOrder.Ascending) { returnValue = Student1.Name.CompareTo(Student2.Name); } else { returnValue = Student2.Name.CompareTo(Student1.StudentId); } break; } return returnValue; } } //--------------------------------------------------------------------------------------------- // Performing sort on click on Column Header //--------------------------------------------------------------------------------------------- private void dataGridView1_ColumnHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e) { //get the current column details string strColumnName = dataGridView1.Columns[e.ColumnIndex].Name; SortOrder strSortOrder = getSortOrder(e.ColumnIndex); students.Sort(new StudentComparer(strColumnName, strSortOrder)); dataGridView1.DataSource = null; dataGridView1.DataSource = students; customizeDataGridView(); dataGridView1.Columns[e.ColumnIndex].HeaderCell.SortGlyphDirection = strSortOrder; } /// &lt;summary&gt; /// Get the current sort order of the column and return it /// set the new SortOrder to the columns. /// &lt;/summary&gt; /// &lt;param name="columnIndex"&gt;&lt;/param&gt; /// &lt;returns&gt;SortOrder of the current column&lt;/returns&gt; private SortOrder getSortOrder(int columnIndex) { if (dataGridView1.Columns[columnIndex].HeaderCell.SortGlyphDirection == SortOrder.None || dataGridView1.Columns[columnIndex].HeaderCell.SortGlyphDirection == SortOrder.Descending) { dataGridView1.Columns[columnIndex].HeaderCell.SortGlyphDirection = SortOrder.Ascending; return SortOrder.Ascending; } else { dataGridView1.Columns[columnIndex].HeaderCell.SortGlyphDirection = SortOrder.Descending; return SortOrder.Descending; } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POC# DataGridView sorting with Generic List as underlying source
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USRiddari
    1. USAsish
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COGreat solution, thank you very much! I took the time and improved it a bit, though.
      singulars
      1. PO
      1. USNikola Malešević
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload