datagridviewcolumn

Custom property won't save when changed in property window

亡梦爱人 提交于 2019-12-02 01:15:14
问题 I've created a custom column for DataGridView, and the reason is that I want to add a property (type) to a column. I right click the DataGridView and select "Edit columns...". Then when I select the column that is my custom column type I'm able to edit the property, but if I clike "OK" after editing and then go to "Edit columns..." again the value that I assigned to my property is gone. Here is my code: public class CustomColumn : DataGridViewColumn { [DisplayName("Type")] [Category("Custom

How can I center the heading in a column on a DataGridView?

浪尽此生 提交于 2019-12-01 03:06:22
I have a strange problem and it's probably a simple fix, but after much research, I cannot seem to find a solution. I have a DataGridView on which I'm trying to center the column headings, but the result is a left bias in the centering—almost like an indenting problem. I've seen a few posts on this issue on a site or two, but never a solution. Any thoughts? Here's the statement I'm currently trying to use: DataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter The code you've posted is on the right track: you need to set the

How can I center the heading in a column on a DataGridView?

◇◆丶佛笑我妖孽 提交于 2019-11-30 23:03:53
问题 I have a strange problem and it's probably a simple fix, but after much research, I cannot seem to find a solution. I have a DataGridView on which I'm trying to center the column headings, but the result is a left bias in the centering—almost like an indenting problem. I've seen a few posts on this issue on a site or two, but never a solution. Any thoughts? Here's the statement I'm currently trying to use: DataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment

How to get cell value of DataGridView by column name?

五迷三道 提交于 2019-11-30 06:57:14
问题 I have a WinForms application with a DataGridView , which DataSource is a DataTable (filled from SQL Server) which has a column of xxx . The following code raises the exception of ArgumentException was unhandled. Column named xxx cannot be found. foreach (DataGridViewRow row in Rows) { if (object.Equals(row.Cells["xxx"].Value, 123)) } Is it possible to get the cell values by column name? 回答1: DataGridViewColumn objects have a Name (shown only in the forms designer) and a HeaderText (shown in

DataGridViewCheckBoxColumn: how to update bound DataSource on property changed instead of on validation

做~自己de王妃 提交于 2019-11-29 13:43:12
I've got a BindingList binded as the data source of a DataGridView; one of the TSource properties is binded to a DataGridViewCheckBoxColumn, but the data source is updated not when a click on the checkbox occurs, but when the focus on the checkbox itself is lost. I know that something similar happens on a standard WindowsForms binding when the DataSourceUpdateMode is "OnValidation" instead of "OnPropertyChanged", but how can I have the same results with a DataGridViewCheckBoxColumn? The column is defined as follows: DataGridViewCheckBoxColumn column = new DataGridViewCheckBoxColumn(); column

Mixing cell types in a DataGridViewColumn

只谈情不闲聊 提交于 2019-11-29 09:53:14
问题 Is it possible to have both DataGridViewComboBoxCells and DataGridViewTextBoxCells in a single DataGridViewColumn? Or am I absolutely restricted to having one type per column? 回答1: There is a weird solution for this. By default create the column as TextBox. Handle the cell click or cell enter event. In the event if the ColumnIndex matches, Convert the column type to ComboBox and set the items. Once the cell leave event fires from the respective column index, convert it back to textbox. Dont

How to get cell value of DataGridView by column name?

陌路散爱 提交于 2019-11-28 23:13:23
I have a WinForms application with a DataGridView , which DataSource is a DataTable (filled from SQL Server) which has a column of xxx . The following code raises the exception of ArgumentException was unhandled. Column named xxx cannot be found. foreach (DataGridViewRow row in Rows) { if (object.Equals(row.Cells["xxx"].Value, 123)) } Is it possible to get the cell values by column name? DataGridViewColumn objects have a Name (shown only in the forms designer) and a HeaderText (shown in the GUI at the top of the column) property. The indexer in your example uses the column's Name property, so

How to hide column of DataGridView when using custom DataSource?

 ̄綄美尐妖づ 提交于 2019-11-28 08:08:22
I have a small app in c#, it has a DataGridView that gets filled using: grid.DataSource = MyDatasource array; MyClass hold the structure for the columns, it looks something like this: class MyDatasource { private string column1; private string column2; public MyDatasource(string arg1, string arg2) { this.column1 = arg1; this.column2 = arg2; } public string column1 { get { return this.column1; } set { this.column1 = value; } } public string column2 { get { return this.column2; } set { this.column1 = value; } } } Everything works fine and the DataGridView gets populated with the correct data,

DataGridViewCheckBoxColumn: how to update bound DataSource on property changed instead of on validation

元气小坏坏 提交于 2019-11-28 07:40:01
问题 I've got a BindingList binded as the data source of a DataGridView; one of the TSource properties is binded to a DataGridViewCheckBoxColumn, but the data source is updated not when a click on the checkbox occurs, but when the focus on the checkbox itself is lost. I know that something similar happens on a standard WindowsForms binding when the DataSourceUpdateMode is "OnValidation" instead of "OnPropertyChanged", but how can I have the same results with a DataGridViewCheckBoxColumn? The

Search for value in DataGridView in a column

泪湿孤枕 提交于 2019-11-27 14:32:34
I want the user to be able to search for a number in a column in the DataGridView (dgv). The dgv can hold many records. Each record has a Project Number. So I want the user to be able to search for a project number in column Project Number. The columns I have are: ProjectID(not visible); Image(no headertext); Project Number; Project Name; Company; Contact. Here is my code: private void btnSearch_Click(object sender, EventArgs e) { string searchValue = textBox1.Text; int rowIndex = -1; dgvProjects.SelectionMode = DataGridViewSelectionMode.FullRowSelect; try { foreach (DataGridViewRow row in