bindingsource

Child bindingsource bound to child entityset does not update

由 ぐ巨炮叔叔 提交于 2019-12-02 16:24:38
问题 I have a table, SampleData, that has a child table, Measurements. On my WinForm, frmMain, a single SampleData object is bound to the SampleDataBindingSource; the MeasurementsBindingSource has SampleDataBindingSource as its datasource and Measurements as its DataMember. A set of textboxes are bound to SampleDataBindingSource; a datagridview is bound to MeasurementsBindingSource. For frmMain, I also have a presenter class, preMain, which contains a property, CurrentSample, of type SampleData.

How to use BindingSource.Filter for a Date in visual basic 2012?

由 和自甴很熟 提交于 2019-12-02 07:45:28
问题 I am trying to filter my database to show all bookings for a date thats selected from a calender I have on my form. This is the code I have written... Public selDate As DateTime Dim response As Integer Public Sub FilterBooking(selDate) '// Here I will create a filter to for boookings on selected date from calender Dim dateFrom As DateTime Dim dateTo As DateTime dateFrom = selDate & " 00:00:01" dateTo = selDate & " 23:59:59" MsgBox(dateFrom) MsgBox(dateTo) Me.QueryBookingInfoBindingSource

C# WinForms BindingList & DataGridView - disallowing EDIT prevents creation of a NEW row? How can I address this?

由 风流意气都作罢 提交于 2019-12-02 06:26:13
问题 Regarding my use of a DataGridView with BindingList, I was to disable editing current rows, but allow adding new rows. The issue I have is that when I disallows edits, this seems to prevent one from adding a new row item, as when you table into the cell for this new row it does not seem to allow editing??? Know how to get around this? Section of my code below: BindingSource bs = new BindingSource(); bList = new BindingList<Customer>(); bList.AllowNew = true; bList.AllowEdit = false; // Fill

How to use BindingSource.Filter for a Date in visual basic 2012?

由 和自甴很熟 提交于 2019-12-02 04:04:55
I am trying to filter my database to show all bookings for a date thats selected from a calender I have on my form. This is the code I have written... Public selDate As DateTime Dim response As Integer Public Sub FilterBooking(selDate) '// Here I will create a filter to for boookings on selected date from calender Dim dateFrom As DateTime Dim dateTo As DateTime dateFrom = selDate & " 00:00:01" dateTo = selDate & " 23:59:59" MsgBox(dateFrom) MsgBox(dateTo) Me.QueryBookingInfoBindingSource.Filter = "BookingDate >= #" & dateFrom & "# AND BookingDate <= #" & dateTo & "#" End Sub Private Sub

Filter an integer using Like in BindingSoure.Filter or DataView.RowFilter

由 你离开我真会死。 提交于 2019-12-02 03:51:15
问题 I've Trying to filter a DataView which have multiple columns where some is numerical values. Everything works perfectly when typing in a string but once a numerical value gets entered (like checking for courier #) it filters to nothing. How My Data Displays before filter: How My Data Displays after filter: My Code is as followed: private void tbxSearchCourier_KeyUp(object sender, KeyEventArgs e) { string outputInfo = ""; string[] keyWords = tbxSearchCourier.Text.Split(' '); foreach (string

C# WinForms BindingList & DataGridView - disallowing EDIT prevents creation of a NEW row? How can I address this?

由 笑着哭i 提交于 2019-12-02 02:36:20
Regarding my use of a DataGridView with BindingList, I was to disable editing current rows, but allow adding new rows. The issue I have is that when I disallows edits, this seems to prevent one from adding a new row item, as when you table into the cell for this new row it does not seem to allow editing??? Know how to get around this? Section of my code below: BindingSource bs = new BindingSource(); bList = new BindingList<Customer>(); bList.AllowNew = true; bList.AllowEdit = false; // Fill bList with Customers bList.Add(new Customer("Ted")); bList.Add(new Customer("Greg")); bList.Add(new

Filter an integer using Like in BindingSoure.Filter or DataView.RowFilter

由 蹲街弑〆低调 提交于 2019-12-02 02:14:55
I've Trying to filter a DataView which have multiple columns where some is numerical values. Everything works perfectly when typing in a string but once a numerical value gets entered (like checking for courier #) it filters to nothing. How My Data Displays before filter: How My Data Displays after filter: My Code is as followed: private void tbxSearchCourier_KeyUp(object sender, KeyEventArgs e) { string outputInfo = ""; string[] keyWords = tbxSearchCourier.Text.Split(' '); foreach (string word in keyWords) { if (outputInfo.Length == 0) { outputInfo = "('Courier #' LIKE '%" + word + "%' OR

Image Databinding to the pictureBox

由 旧街凉风 提交于 2019-12-02 00:04:26
问题 I have tried to bind the image from the column "Applicant's Image" in the datatable "Applicant's Details" in Data Set "data_set" through two methods. But When I run the Form Application I see no image displayed in the picturebox "imgusr". My binding source name is "bindSource". Assuming the data_set retrieves everything correctly, what could be problem for image not being loaded into the picturebox "imgusr"?? Also, the picturebox property of sizeMode to "zoom". private void Update_Load(object

Image Databinding to the pictureBox

由 牧云@^-^@ 提交于 2019-12-01 20:23:19
I have tried to bind the image from the column "Applicant's Image" in the datatable "Applicant's Details" in Data Set "data_set" through two methods. But When I run the Form Application I see no image displayed in the picturebox "imgusr". My binding source name is "bindSource". Assuming the data_set retrieves everything correctly, what could be problem for image not being loaded into the picturebox "imgusr"?? Also, the picturebox property of sizeMode to "zoom". private void Update_Load(object sender, EventArgs e){ data_set = blobj.srcforVU(); bindSource.DataSource = data_set; bindSource

C# DataGridView.DataSource difference between using BindingSource and not

由 白昼怎懂夜的黑 提交于 2019-12-01 18:04:19
问题 I found that I can just set the DataGridView.DataSource directly to the DataTable without using the BindingSource in between, which is what all of the tutorials I've seen so far are using. So what is the difference between these two? 回答1: Some information here on how the use of a BindingSource is an improvement to the old way of binding directly to a DataTable. http://msdn.microsoft.com/en-us/library/aa480734.aspx In summary: The BindingSource component simplifies the developer's job by
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