datagridviewcombobox | 易学教程

How To Add A DataGridViewComboBoxCell to a Bound DataGridView DataSource (Programatically)

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问题 Goal I want to have a DataGridViewComboBoxCell after setting my DataGridView's DataSource with a DataView. Current Situation I have a DataTable that is populated with BillDetails as the user navigates through his Bills . I created a DataView and set the DataView's Table to equal to the DataTable of Bill Details. I then set the DataGridView's DataSource to the DataView. Setting the DataGridView's DataSource Dim ViewContent As New DataView ViewContent.Table = dsBillMat.Tables("dtBillDetails")

DataGridViewTextBoxColumn that changes to ComboBox on editing

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问题 I want to show a DataGridView with a ComboBox column that looks like a DataGridViewTextBoxColumn. In DataGridView I have the DataGridViewTextBoxColumn displayed and when the user sets Focus on a cell in this column, the cell should be changed to ComboBox. I don't know which function has to be overriden. In DataGridTextBoxColumn there is the function Edit, can I can draw my combobox during this function? 回答1: Unless I'm missing something - you should be able to simply use the

grid view combobox

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问题 how to add items to a data grid view combo box 回答1: You have a very good example here. Basically, the combobox is created and populated independently from the data binding. This is a very generic question. If you're having more specific problems please let us know. 回答2: First add ad dropdownlist to your gridview with a template field like this Make sure you add an OnRowCreated Event to your gridview <asp:GridView ID="GridView1" runat="server" OnRowCreated="GridView1_RowCreated"> <Columns>

What happen to DataGridViewComboBoxColumn when DisplayMember is set?

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问题 When I have a DataGridViewComboBoxColumn filled with binded values, and if I set the DisplayMember property, I get the DataError event raised with a FormatException : DataGridViewComboBoxCell value is not valid If DisplayMember is not set, and so the view is showing the result of .ToString() , all work as expected. Here is a complete example: public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { var categories = new

DataGridViewComboBoxColumn set the selectedindex

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问题 hi i runtime bind the data into datagridview combobox. But how do i make it to auto display the first item? i do not able find the selectedindex from DataGridViewComboBoxColumn. DataGridViewComboBoxColumn cbStudentCourse = (DataGridViewComboBoxColumn)dgStudentCourse.Columns["studentCourseStatus"]; cbStudentCourse.DataSource = Enum.GetValues(typeof(CourseStudentStatus)); cbStudentCourse.DisplayIndex = 1; -- Update --- i saw someone doing this in solution 3 LInk Are you sure i need such a long

How to make custom DataGridViewComboBox dependent only on its DataGridViewComboBoxColumn?

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Popular way ( 1 , 2 ) for custom painting of items in DataGridViewComboBox is handling of event DataGridView1. EditingControlShowing and setting up DrawItem event handlers there: private void dataGridView1_EditingControlShowing( object sender, DataGridViewEditingControlShowingEventArgs e) { theBoxCell = (ComboBox) e.Control; theBoxCell.DrawItem += theBoxCell_DrawItem; theBoxCell.DrawMode = DrawMode.OwnerDrawVariable; } You see what is wrong: it uses control-level event to handle work for columns. But what if I have 50+ datagridviews? Painting of custom combo boxes should be handled per column

Databinding a combobox column to a datagridview per row (not the entire column)

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There are a few posts about this, but after hours of searching I still can't find what I need. The answer in the following post almost gets me what I want: Combobox for Foreign Key in DataGridView Question 1: Going off that example where a Product has many Licenses, my database mappings are all many-to-one relationships which means my License class holds a reference to the Product class. The License class does not have a property for the ProductId since that can be retrieved via the Product reference. I don't want to muck up the License class with both a reference to Product and a ProductId

DataGridViewComboBoxColumn set the selectedindex

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hi i runtime bind the data into datagridview combobox. But how do i make it to auto display the first item? i do not able find the selectedindex from DataGridViewComboBoxColumn. DataGridViewComboBoxColumn cbStudentCourse = (DataGridViewComboBoxColumn)dgStudentCourse.Columns["studentCourseStatus"]; cbStudentCourse.DataSource = Enum.GetValues(typeof(CourseStudentStatus)); cbStudentCourse.DisplayIndex = 1; -- Update --- i saw someone doing this in solution 3 LInk Are you sure i need such a long code to just have the first item selected?????? A DataGridViewComboBoxColumn has no SelectedIndex , and

What a strange behavior in AutoComplete in DataGridViewCombobox column?

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I am using the ( EditingControlShowing ) event to Enable AutoComplete in DataGridViewComboBox Column. private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { if (e.Control is DataGridViewComboBoxEditingControl) { ComboBox combo = (ComboBox)e.Control; ((ComboBox)e.Control).DropDownStyle = ComboBoxStyle.DropDown; ((ComboBox)e.Control).AutoCompleteSource = AutoCompleteSource.ListItems; ((ComboBox)e.Control).AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.SuggestAppend; } } But it has a strange behavior, when I type some characters

Adding and Populating DataGridViewComboBoxcolumn to Bound Datagridview

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问题 I'm attempting to allow a DataGridView to allow the user to edit fields (for simplicity's sake, let's say it's just Items, each of which can have a Condition, with allowable values taken from a second table [Conditions] e.g. Data Structure (simplified) Items Table ID (Primary key--not to be shown) ItemNum Qty ConditionAbbrev (e.g. "New", "Used", "Recert") -- used as a key to an item in the Conditions table below Conditions Table ConditionAbbrev (e.g. "New", "Used", "Recert", etc.