private void txtTx_TextChanged(object sender, EventArgs e)
{
if (disableUpdate)
{
return;
}
try
{
Transaction tx = new Transaction(HexString.ToByteArray(txtTx.Text));
// Disable *_Changed events
disableUpdate = true;
// Clear everything
UTXO.Clear();
updateUTXOList();
selectedUTXO.Clear();
dgvOutputs.Rows.Clear();
outputs.Clear();
foreach (TxIn txin in tx.inputs)
{
TxOutId txi;
TxOut txo;
// Try local bitcoind first
if (rpc != null)
{
try
{
string sPrevTx = rpc.doRequest <string>("getrawtransaction", new object[] { HexString.FromByteArrayReversed(txin.prevOut) });
Transaction prevTx = new Transaction(HexString.ToByteArray(sPrevTx));
txi = new TxOutId(txin.prevOut, txin.prevOutIndex);
txo = prevTx.outputs[txin.prevOutIndex];
UTXO.Add(txi, txo);
selectedUTXO.Add(txi, txo);
continue;
}
catch (Exception)
{
}
}
// Get from blockchain if bitcoind fails
try
{
string json;
using (WebClient wc = new WebClient())
{
json = wc.DownloadString("https://blockchain.info/rawtx/" + HexString.FromByteArrayReversed(txin.prevOut));
}
JavaScriptSerializer jss = new JavaScriptSerializer();
Dictionary <string, object> jso = jss.Deserialize <Dictionary <string, object> >(json);
Dictionary <string, object>[] outs = jss.ConvertToType <Dictionary <string, object>[]>(jso["out"]);
Address addr = new Address((string)outs[txin.prevOutIndex]["addr"]);
byte[] scriptPubKey = scriptPubKey = ScriptTemplate.PayToAddress(addr).ToBytes();
txi = new TxOutId(txin.prevOut, txin.prevOutIndex);
txo = new TxOut(jss.ConvertToType <UInt64>(outs[txin.prevOutIndex]["value"]), scriptPubKey);
UTXO.Add(txi, txo);
selectedUTXO.Add(txi, txo);
}
catch (Exception)
{
MessageBox.Show("Could not get input data.");
return;
}
}
updateUTXOList();
foreach (DataGridViewRow row in dgvInputs.Rows)
{
row.Cells["inSelected"].Value = true;
}
foreach (TxOut txout in tx.outputs)
{
string addr;
try
{
addr = Address.FromScript(txout.scriptPubKey).ToString();
}
catch (Exception)
{
addr = "Could not decode address";
}
dgvOutputs.Rows.Add(addr, (decimal)txout.value / 100000000m);
outputs.Add(txout);
}
updateTx(false);
txtTx.ForeColor = SystemColors.WindowText;
}
// Transaction invalid
catch (Exception)
{
txtTx.ForeColor = Color.Red;
return;
}
finally
{
disableUpdate = false;
}
}
private void dgvOutputs_Changed(object sender, EventArgs e)
{
if (disableUpdate)
{
return;
}
disableUpdate = true;
outputs.Clear();
for (int i = 0; i < dgvOutputs.Rows.Count; i++)
{
if (i != dgvOutputs.Rows.Count - 1)
{
if (!string.IsNullOrWhiteSpace((string)dgvOutputs["outAddress", i].Value))
{
try
{
Address addr = new Address((string)dgvOutputs["outAddress", i].Value);
TxOut txo = new TxOut((UInt64)((decimal)dgvOutputs["outAmount", i].Value * 100000000m), ScriptTemplate.PayToAddress(addr).ToBytes());
outputs.Add(txo);
dgvOutputs.Rows[i].ErrorText = "";
}
catch (Exception)
{
dgvOutputs.Rows[i].ErrorText = "Invalid";
}
}
else
{
dgvOutputs.Rows[i].ErrorText = "Invalid";
}
}
}
updateTx();
disableUpdate = false;
}