datagridview

问题 I have a dropdownlist that selects category list from Database and display the product name onto the checkedlistbox. But how do I grabs the checked items from the checkedlistbox to the DataGridView? This is how my design looks like: Also, how do I make every medication that has been added to the Gridview has a default value of 1 Quantity? 回答1: Add this code to your Add button click event: private void button1_Click(object sender, EventArgs e) { for (int i = 0; i < checkedListBox1.Items.Count;

问题 I have DataGridView inside my WinForm. I set AutoSizeColumnsMode to Fill , because I need no white space if user resizes the window. What I want to achieve. For example, user types some text in the certain cell. When text width becomes as cell width, text must go one the new line. How it might be: |Cell Header| ------------- |text-text | and |Cell Header| ------------- |text-text | |more text | |on the new | |line | My columns are resizable by user. So this: |Cell Header| ------------- |text

问题 I have a datagridview in my winform. I fill it with sql query. I call the column names like that: This is my sql query: SELECT SF.ID, SF.TARIH AS 'TARİH', M.AD AS 'MÜŞTERİ ADI' FROM TABLE1 SF AND TABLE2 M These column names have Turkish and space characters as you see. When i try to filter datagridview, i use this code: (datagridview.DataSource as DataTable).DefaultView.RowFilter = string.Format("'MÜŞTERİ ADI' LIKE '%{0}%'", textbox.Text.ToUpper()); It doesn't work. If i call the column name

问题 I'm my WinForms 2.0 application I'm using a DataGridView and a custom edit control within the current cell (IDataGridViewEditingControl). The current cell uses my custom edit control that inherits from textbox and implements the IDataGridViewEditingControl interface. This control now registers to the TextChanged event in order to perform some validation logic while the value is edited and to the Leave event to apply some visual effects from the custom edit control to the DataGridView cell.

问题 I have a DataGridView that I am importing data into from multiple excel files. But every time I import the data it overwrites the previous data. How do I get it to add the next excel file to the end of the previous in the data grid view? If DataGridView1.RowCount > 0 Then MyConnection = New System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\Work\4pc_test1.xlsx;Extended Properties=Excel 12.0;") 'MyConnection = New System.Data.OleDb.OleDbConnection("provider

问题 I have a DataGridView that I am importing data into from multiple excel files. But every time I import the data it overwrites the previous data. How do I get it to add the next excel file to the end of the previous in the data grid view? If DataGridView1.RowCount > 0 Then MyConnection = New System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\Work\4pc_test1.xlsx;Extended Properties=Excel 12.0;") 'MyConnection = New System.Data.OleDb.OleDbConnection("provider

问题 I would like to add rows to DataGridView from two seperate threads. I tried something with delegates and BeginInvoke but doesn't work. Here is my row updater function which is called from another function in a thread. public delegate void GRIDLOGDelegate(string ulke, string url, string ip = ""); private void GRIDLOG(string ulke, string url, string ip = "") { if (this.InvokeRequired) { // Pass the same function to BeginInvoke, // but the call would come on the correct // thread and

问题 Is it possible to set ProgressBar as background for DataGridView row? Or color only part of the row from left to right? I have rows that represent some dynamically changing data and I need to show that progress somehow. I want to use an entire row background as a progress bar, how can I do that? 回答1: If you want to use the entire row it might be best to override the default template of the DataGridRow using the DataGrid.RowStyle , then you lay a ProgressBar below the other content, e.g.

问题 Is it possible to set ProgressBar as background for DataGridView row? Or color only part of the row from left to right? I have rows that represent some dynamically changing data and I need to show that progress somehow. I want to use an entire row background as a progress bar, how can I do that? 回答1: If you want to use the entire row it might be best to override the default template of the DataGridRow using the DataGrid.RowStyle , then you lay a ProgressBar below the other content, e.g.

问题 I have not done a lot with WinForms so I wonder if someone could give me a little assistance with this. I have a DataGridView that is bond to a IList<>. When I delete a selected record from the collection (ILIST<>) I get the following exception: "System.IndexOutOfRangeException:Index 3 does not have a value" I think my binding is a little lame too. So maybe someone can give me a pointer here as well. public Form1() { InitializeComponent(); empGrid.DataSource = stub.GetAllEmplyees(); empGrid