I'm trying to convert item repeaters to the text boxes and check all text boxes if all of them are empty but i get this error in line 3.
System.InvalidCastException
int check = 0;
foreach (RepeaterItem item in searchResultRepeater.Items)
{
if (item.Controls.Count > 0 && item.Controls[0] is ITextControl)
{
if (((TextBox)item.Controls[0]).Text == "") // Exception here
{
check = 0;
}
else
{
check = 1;
break;
}
}
}
How can i fix this ? Any help would be appriciated.
You can try it
int check = 0;
foreach (RepeaterItem item in searchResultRepeater.Items)
{
TextBox txt = (TextBox)item.FindControl("yourTextBoxName");
if (txt.Text == string.Empty)
{
check = 0;
}
else
{
check = 1;
break;
}
}
Related
I have this two list-box In that first list-box is fill on Combo-box Selected index changed, so List-box 1 is Bounded. Now when I press the > button all selected item in List-box 1 is display in List-box 2.
But instead of Names, I get System.Data.DataRowView
so my question is I want Names instead of this System.Data.DataRowView
my code is this
private void btnSelect1ItemFrom_Click(object sender, EventArgs e)
{
if (listBoxSelectToLedger.Items.Count > 0)
{
for (int i = 0; listBoxSelectToLedger.Items.Count > i; )
{
listBoxSelectToLedger.Items.Remove(listBoxSelectToLedger.Items[i].ToString());
}
}
if (listBoxSelectFromLedger.SelectedItem != null)
{
** for (int i = 0; i < listBoxSelectFromLedger.SelectedItems.Count; i++)
{
listBoxSelectToLedger.Items.Add(listBoxSelectFromLedger.SelectedItems[i].ToString());
} **
}
else
{
MessageBox.Show("No item Selected");
}
* I think I am some where Wrong in Second IF Condition in my Code *
Plz Help me
Thanks in Advance
Try this...
private void button1_Click(object sender, EventArgs e)
{
if(listBoxFrom.SelectedItems.Count>0)
{
for (int x = listBoxFrom.SelectedIndices.Count - 1; x >= 0; x--)
{
int idx = listBoxFrom.SelectedIndices[x];
listBoxTo.Items.Add(listBoxFrom.Items[idx]);
listBoxFrom.Items.RemoveAt(idx);
}
}
}
Hiii.. Deep, use the below code to add ListItem.
foreach (ListItem LI in listBoxFrom.Items)
{
if (LI.Selected)
listBoxTo.Items.Add(LI);
}
To add in to 2nd listbox and remove that from the first listbox you can use below code:
int[] indices = listBoxFrom.GetSelectedIndices();
for (int i = indices.Length - 1; i >= 0; i--)
{
ListItem LI = listBoxFrom.Items[indices[i]];
listBoxTo.Items.Add(LI);
listBoxFrom.Items.RemoveAt(indices[i]);
}
put your No items selected message where you require.
I got answer of my own question.
i have to set my DataRowView object
if (listBoxSelectToLedger.Items.Count > 0)
{
for (int i = 0; listBoxSelectToLedger.Items.Count > i; i = 0)
{
listBoxSelectToLedger.Items.Remove(listBoxSelectToLedger.Items[i].ToString());
}
}
if (listBoxSelectFromLedger.SelectedItem != null)
{
foreach (DataRowView objDataRowView in listBoxSelectFromLedger.SelectedItems)
{
listBoxSelectToLedger.Items.Add(objDataRowView["item_name"].ToString());
}
}
else
{
MessageBox.Show("No Item selected");
}
I am using two forms,when I am sending the StockID from one form to another form,in the second form there is some data in the gridview,now I wan to do tat is,by using that id I want to highlight the that row only. I want to compare the ID is exists in the gridview or not,if exits the I want to Do the higlighten for that full row.,
if (pc == c)
{
for (int i = 0; i < grid_stock.Rows.Count; i++)
{
grid_stock.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
this.grid_stock.Rows[i].DefaultCellStyle.BackColor = Color.Red;
break;
}
}
// on load or when refersh data
if (SelectingID != null)
{
for (int i = 0; i < dgvInvoiceList.Rows.Count; i++)
{
BillingGeneral.InvoicesDataSet.InvoiceListRow dr = (BillingGeneral.InvoicesDataSet.InvoiceListRow)((DataRowView)dgvInvoiceList.Rows[i].DataBoundItem).Row;
if (dr.ID == SelectingID.Value)
{
dgvInvoiceList.ClearSelection();
dgvInvoiceList.Rows[i].Selected = true;
SelectingID = null;
break;
}
}
}
If the if condition at the top is meant to check if the IDs match , put that inside of your for loop , like this :
for (int i = 0; i < grid_stock.Rows.Count; i++)
{
if(grid_stock.Rows[i].Cells[stockID_column_index].Value == received_stockID) // Check if the row IDs match here
{
grid_stock.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
this.grid_stock.Rows[i].DefaultCellStyle.BackColor = Color.Red;
break;
}
}
Replace stockID_column_index with the index of the column where StockID is stored .
Try this,
Give correct column index of StockID in row.Cells[0]
foreach (DataGridViewRow row in grid_stock.Rows)
{
if (row.Cells[0].Value.Equals("StockID"))
{
grid_stock.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
row.DefaultCellStyle.BackColor = Color.Red;
}
}
This is how I currently add info to my listview:
private void toolStripMenuItem2_Click(object sender, EventArgs e)
{
int totItems = Seq3.Count - 1;
if (PercentPopTolerance1.Count - 1 > totItems) totItems = PercentPopTolerance1.Count - 1;
for (int i = 0; i <= totItems; i++)
{
ListViewItem lvi = new ListViewItem();
string item1 = "";
string item2 = "";
if (Seq3.Count - 1 >= i) item1 = Seq3[i].ToString();
if (PercentPopTolerance1.Count - 1 >= i) item2 = PercentPopTolerance1[i].ToString();
lvi.SubItems.Add(item1);
lvi.SubItems.Add(item2);
listView2.Items.Add(lvi);
}
}
View of empty listview:
Now how would I clear the contents of any particular column? Say I want to add to column YYMM but before I do this, I want to clear that particular column. How would this be done?
You can clear column values like this
var items = listView1.Items;
foreach (ListViewItem item in items)
{
a.SubItems["YYWW"].Text = "";
}
You should specify a column by its name (a column corresponds to a subitem in a ListViewItem), note that this Name is not ColumnHeader.Name, I mean the corresponding ListViewSubItem.Name:
public void ClearColumn(string colName){
foreach(ListViewItem item in listView1.Items){
var cell = item.SubItems[colName];
if(cell != null) cell.Text = "";
}
}
The following code will work for ColumnHeader.Name passed in instead of ListViewSubItem.Name as the code above does:
public void ClearColumn(string columnHeaderName){
int i = listView1.Columns.IndexOfKey(columnHeaderName);
if(i == -1) return;
foreach(ListViewItem item in listView1.Items){
item.SubItems[i].Text = "";
}
}
You can try the following code to make it work for Text instead of Name:
public void ClearColumn(string colText){
if(listView1.Items.Count == 0) return;
var col = listView1.Columns.Cast<ColumnHeader>()
.Select((x,i)=>new{x,i})
.FirstOrDefault(a=>a.x.Text == colText);
if(col == null) return;
foreach(ListViewItem item in listView1.Items){
item.SubItems[col.i].Text = "";
}
}
int rowsCount = 0;
//This checks to see that both textbox for items and subitems do not gain focus at the same time
if (textBoxSubItems.Text != string.Empty)
txtItems.Enabled = false;
else
txtItems.Enabled = true;
if (comboBoxItems.SelectedItem != null)
{
int idx = dataGridViewTimesheet.Rows.Add();
DataGridViewRow row = dataGridViewTimesheet.Rows[idx];
row.Cells["items"].Value = comboBoxItems.SelectedItem.ToString() + "-" + textBoxSubItems.Text;
row.Cells["fromTime"].Value = DateTime.Now.ToLongTimeString();
row.Cells["toTime"].Value = null;
row.Cells["duration"].Value = null;
row.Cells["subTotal"].Value = null;
// row.Cells["comments"].Value = "1";
}
else
MessageBox.Show("Please select an item");
string strGetColumnValue;
if (dataGridViewTimesheet.Rows.Count != 0)
rowsCount = dataGridViewTimesheet.Rows.Count;
else
MessageBox.Show("No row in the datagridview");
while (dataGridViewTimesheet.Rows.Count > 0)
{
try
{
if (dataGridViewTimesheet.CurrentRow != null)
for (int counter = 0; counter < dataGridViewTimesheet.Columns.Count; counter++)
{
if (dataGridViewTimesheet.Columns[counter].Index == 3)
{
strGetColumnValue = dataGridViewTimesheet.Rows[rowsCount].Cells[counter].Value.ToString();
dataGridViewTimesheet.Rows[rowsCount - 1].Cells[3].Value = strGetColumnValue;
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
Please i have 6 columns in a datagridview, the rows are added dynamically. What i want is when rows are more than one in the datagridview it should assign the value of the second column on the current(the last row created) row to the third column of the previous row. How do I achieve this.
Try this kind of thing
int count =1;
foreach (DataGridRow row in dataGridViewTimesheet.Rows)
{
if (count % 2 == 0)
{
string secondColumn = dataGridViewTimesheet.Rows[count -1].Cells[1].ToString();
dataGridViewTimesheet.Rows[count].Cells[2].Value = secondColumn;
}
count++;
}
I have been saving into the ComboBox a value out of the selected column in datagridview with below code.
My question is:How can I prevent duplicate records when I save the values into the ComboBox? How can I do that?
Code:
int ColumnIndex = dgUretimListesi.CurrentCell.ColumnIndex;
CmbAra.Text = "";
for (int i = 0; i < dgUretimListesi.Rows.Count; i++)
{
CmbAra.Items.Add(dgUretimListesi.Rows.Cells[ColumnIndex].Value.ToString());
}
Please try this
private void dgvServerList_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
try
{
if (e.ColumnIndex == 1)
{
string id = dgvServerList[e.ColumnIndex, e.RowIndex].Value.ToString();
int duplicaterow = 0;
for (int row = 0; row < dgvServerList.Rows.Count; row++)
{
if (row != e.RowIndex && id == dgvServerList[e.ColumnIndex, row].Value.ToString())
{
duplicaterow = row + 1;
MessageBox.Show("Duplicate found in the row: " + duplicaterow);
this.dgvServerList[e.ColumnIndex, e.RowIndex].Value = "";
break;
}
}
}
}
catch
{
}
}
you could first transfer your datagridview items to a dictionary (which guarantees uniqueness) and then transfer that dictionary content to the combobox. or you could check for uniqueness yourself using a 'Contains' method on the combobox. you could even tie the dictionary to the combobox as a source for the combobox items.
Dictionary<string,bool> d = new Dictionary<string,bool>();
int ColumnIndex = dgUretimListesi.CurrentCell.ColumnIndex;
CmbAra.Text = "";
for (int i = 0; i < dgUretimListesi.Rows.Count; i++)
{
d[dgUretimListesi.Rows.Cells[ColumnIndex].Value.ToString()] = true;
}
CmbAra.Items.AddRange(d.Keys);
Use a set:
int ColumnIndex = dgUretimListesi.CurrentCell.ColumnIndex;
CmbAra.Text = "";
HashSet<string> set = new HashSet<string>();
for (int i = 0; i < dgUretimListesi.Rows.Count; i++)
{
string s = dgUretimListesi.Rows.Cells[ColumnIndex].Value.ToString();
if(!set.Contains(s)) {
CmbAra.Items.Add(s);
set.Add(s);
}
}
by using the following check and then determine to add or not
if(CmbAra.Items.Contains(dgUretimListesi.Rows.Cells[ColumnIndex].Value.ToString()))
You can use the following code part.
if(!(CmbAra.Items.Contains(dgUretimListesi.Rows.Cells[ColumnIndex].Value.ToString())))
{
CmbAra.Items.Add(dgUretimListesi.Rows.Cells[ColumnIndex].Value.ToString());
}
else
{
MessageBox.Show("Value Already exists , not added");
}