datagridview

问题 I'm trying to create an DataGridView on visual basic, however I'm having a problem with this RowsCount . This code is underlined blue: SQL.SQLDA.Fill(SQL.SQLDS, "GettingInfo").RowsCount It says RowsCount is not a member of integer. This is all of the code for the process: Public Sub LoadBookingData() Dim loadSQL As String = "SELECT * FROM booking" Dim RowsCount As Integer If SQL.SQLCon.State = ConnectionState.Closed Then SQL.SQLCon.open() SQL.SQLDA.Fill(SQL.SQLDS, "GettingInfo"). RowsCount =

问题 I'm trying to create an DataGridView on visual basic, however I'm having a problem with this RowsCount . This code is underlined blue: SQL.SQLDA.Fill(SQL.SQLDS, "GettingInfo").RowsCount It says RowsCount is not a member of integer. This is all of the code for the process: Public Sub LoadBookingData() Dim loadSQL As String = "SELECT * FROM booking" Dim RowsCount As Integer If SQL.SQLCon.State = ConnectionState.Closed Then SQL.SQLCon.open() SQL.SQLDA.Fill(SQL.SQLDS, "GettingInfo"). RowsCount =

问题 My question might seems to be duplicate although it is not the same issue i had experienced before. I have successfully added a richtexbox column to the datagridview as it has being my problem for a while. now you can add richtextbox to the datagridview. Now am trying to highlight the edited text only but am not setting it work as after i edited the text it highlight the whole text. for an example from what i wanna get "Test" = Test ing from the example i above, i only want to highlight the

问题 My question might seems to be duplicate although it is not the same issue i had experienced before. I have successfully added a richtexbox column to the datagridview as it has being my problem for a while. now you can add richtextbox to the datagridview. Now am trying to highlight the edited text only but am not setting it work as after i edited the text it highlight the whole text. for an example from what i wanna get "Test" = Test ing from the example i above, i only want to highlight the

问题 In my VB class I have defined this attribute as class variable: Friend WithEvents dgw As System.Windows.Forms.DataGridView Somewhere in the same class is defined a property: Private Sub mySub(...) Dim aDataAdapter As SqlDataAdapter Dim aDataSet = New DataSet aDataAdapter = New SqlDataAdapter("exec something") aDataAdapter.Fill(aDataSet) Me.dgw.DataSource = aDataSet.Tables(0) ' [PLACEHOLDER] End Sub This code do its job: data are readed from the database and are inserted inside the grid. Now I

问题 There is my reading to DGV public void ReadFromDB() { dataset = DB.ReadFromDB("SELECT * FROM orders"); dataGridView1.DataSource = dataset.Tables[0]; //another columns.... DataGridViewColumn sellDate = new DataGridViewTextBoxColumn(); sellDate.DataPropertyName = "sell_date"; sellDate.ReadOnly = true; sellDate.Name = "Дата продажи"; dataGridView1.Columns.Add(sellDate); dataGridView1.Columns[4].DefaultCellStyle.Format = "dd/MM/yyyy"; dataGridView1.Columns[4].Width = 80; dataGridView1.Update(); }

问题 I'm have created a purchase order form and added all data to tables. now I wanted to update purchase order items by adding new items to DataGridView . I have filled DataGridView with old items and now I wanted to add new items but it is not working Error: Rows cannot be programmatically added to the DataGridView rows collection when the control is data-bound. Here is my code which I'm using to add a new row in updateMode. try { if (updateMode) { //DataTable dt = dataGridPOItems.DataSource as

问题 I am having trouble fixing an error that I keep getting when I try to add a button column to my table. The error is: Argument 1: cannot convert from 'System.Windows.Forms.DataGridViewButtonColumn' to 'System.Web.UI.WebControls.DataControlField' It is basically saying that I cannot use the local variable 'btn' in the line gridViewStudent.Columns.Add(btn); in the following code: gridViewStudent.DataSource = table; gridViewStudent.DataBind(); DataGridViewButtonColumn btn = new

问题 I have done for clicking one the datagridview row cell in one form say form 1 another form say form 2 will open along with selected data grid view data on form1.. I am using winforms...c# i have done some operations on datagrid view data and at the end of the operations stage the form2 will be closed NOTE :upto this i have finished i want to update the datagridview in form1 with changes i have done in form2 for that i have done like this.. form 1: private void productGridview_Cellclick(object

问题 I am displaying some data in datagridview whose datasource is a datatable. For DateTime column, I want to use datetimepicker control to edit the value. So I tried the following code found in this link. https://msdn.microsoft.com/en-us/library/7tas5c80 After assigning the custom cell template to the DateTime column, datagridview is not invalidating immediately. Here is the code I tried dataGridView1.DataSource = dataTable; CalendarCell cell = new CalendarCell(); this.dataGridView1.Columns[